FAQs

Yes, we comply with various industry standards and offer material traceability, inspection reports, and documentation upon request. 

Absolutely. We offer free DFM (Design for Manufacturability) feedback and material selection advice to help you optimize for performance and cost. 

Yes. TUOWEI supports clients across North America, Europe, and Asia with fast, tracked delivery and full customs documentation. 

Yes. We handle hybrid builds and offer assembly or packaging services to streamline your supply chain. 

Rapid prototypes can be delivered in as little as 5–7 business days, while production orders vary depending on volume and complexity. 

Absolutely. We support everything from one-off prototypes to high-volume production runs, adapting to your specific needs. 

We accept STEP, STP, IGES, STL, and other common 3D CAD files. Simply upload your design, and we’ll take it from there. 

Yes, we provide surface finishing like anodizing, electropolishing, powder coating, painting, bead blasting, and more to meet both functional and aesthetic requirements. 

Lead times vary by service, but CNC parts are often delivered within 5–7 business days. We also offer expedited production upon request. 

No, we support low-volume production and single-part prototyping. There’s no minimum order, just maximum flexibility. 

Yes. We routinely machine parts with tolerances as tight as ±0.005 mm, using advanced CNC equipment and inspection tools like CMMs. 

Yes. We offer full documentation, including material certifications, dimensional inspection reports, and process traceability, upon request. 

Depending on part complexity and quantity, prototypes can be delivered in as fast as 5–10 business days. We also offer expedited options. 

Yes. Our engineers offer DFM support to optimize parts for strength, weight, and manufacturability while meeting aerospace criteria. 

Yes. We have extensive experience producing lightweight, high-strength components for UAVs and drones, including frames, mounts, and enclosures. 

We work with OEMs, Tier 1 and Tier 2 suppliers, automotive R&D teams, and EV startups needing rapid prototyping, precision machining, and small to medium-batch production. 

Yes. Our services include CNC machining of metals like aluminum, steel, and titanium, as well as plastic part production through CNC and injection molding. 

Lead times vary based on complexity but typically range from 5 to 12 business days. Expedited services are also available for urgent needs. 

Yes. Our engineering team offers DFM consultation to help refine your part designs for cost-effective and reliable production. 

We follow ISO-based quality control systems and are compliant with industry-standard documentation practices. Certifications can be provided based on customer requirements. 

We support robotic systems, smart manufacturing equipment, automated testing machines, packaging machinery, and semiconductor assembly equipment. 

Absolutely. We offer DFM support to help ensure your part is optimized for cost-effective and precise production. 

Lead times vary by complexity but usually range from 5 to 10 business days. Rush orders can be accommodated. 

Yes. We offer anodizing, bead blasting, black oxide, powder coating, and more depending on your needs. 

Yes. We can machine and assemble multiple components into sub-assemblies if needed. 

We produce RF enclosures, antenna mounts, EMI shields, heat sinks, cable holders, and precision brackets for networking, satellite, and telecom devices. 

Yes. We use corrosion-resistant materials like stainless steel and anodized aluminum. We also offer weather-sealing finishes for outdoor telecom applications. 

Absolutely. We provide chromate conversion coating, conductive anodizing, and custom conductive paint options based on your shielding requirements. 

Yes. Our micro-machining and small-part CNC capabilities allow us to manufacture precise, compact components for small form-factor devices. 

Yes. Our micro-machining and small-part CNC capabilities allow us to manufacture precise, compact components for small form-factor devices. 

Depending on complexity, we can ship communication part prototypes in 5–7 business days, including basic surface finishing and inspection. 

We support both. We can also assemble and inspect small sub-assemblies before shipment if required. 

We accommodate low-volume prototype runs (as few as 1–10 pieces) and scale up to high-volume production depending on your needs. 

Yes. We offer a variety of aesthetic finishes such as anodizing, bead blasting, polishing, powder coating, and laser etching for branding and durability. 

Absolutely. We use biocompatible and skin-safe materials like TPU, PC, and medical-grade ABS, with certification available upon request. 

We routinely achieve tolerances down to ±0.005 mm for CNC-machined parts, especially in aluminum, brass, and plastic components. 

Yes. We offer light assembly, kitting, and customized packaging services for consumer-ready delivery if needed. 

We manufacture to ISO 13485 and ISO 9001 standards, with comprehensive inspection protocols and traceability documentation. 

We offer electropolishing, passivation, mirror finishing, and bead blasting, all of which are compatible with standard sterilization methods like autoclaving. 

Yes. We machine titanium (Grade 2, Grade 5) and medical-grade PEEK regularly, ensuring surface integrity and purity for implantable applications. 

Most CNC prototypes can be shipped within 5–7 business days, depending on complexity and finish. 

Yes. We offer First Article Inspection (FAI), CMM reports, surface finish verification, and dimensional inspection records. 

We produce structural arms, joints, brackets, motor mounts, gear housings, sensor enclosures, and end effectors , in both metal and plastic. 

Yes. We routinely machine to tolerances as tight as ±0.01 mm and provide full inspection reports when needed. 

Absolutely. We specialize in helping startups and R&D teams prototype quickly using CNC machining or 3D printing. 

Yes. We offer anodizing, bead blasting, black oxide, electropolishing, and other finishes tailored to industrial and medical applications. 

Standard lead times are 5–10 business days. Rush orders can be arranged depending on part complexity. 

Yes. Our engineering team offers DFM guidance to optimize your design for precision manufacturing.

Yes. We machine tool steels, stainless steels, and hardened alloys and offer heat treatment and surface finishing options.

Yes. We provide tiered pricing for large quantities and repeat orders, ensuring cost-efficiency at scale. 

Prototypes can ship in as little as 5–7 business days. Standard production parts typically ship in 10–15 days depending on volume and complexity. 

We accept STEP, IGES, STL, DXF, and native CAD files. Our team also offers DFM feedback upon request. 

Yes. We provide anodizing, black oxide, nickel plating, powder coating, and other surface treatments tailored for industrial use. 

Yes. We provide 3D scanning, CAD modeling, and improved replacement parts, even if OEM blueprints are unavailable. 

We offer emergency lead times and can prioritize machining within 3–7 days, depending on complexity and material availability. 

We follow ISO 9001-certified processes with full dimensional inspections, material certs, and functional testing where applicable. 

Yes. We can fabricate large structural parts, perform precision welds, and offer post-weld machining and stress relief. 

Yes. We follow MIL-spec standards for materials, finishes, and tolerances, and provide full compliance documentation upon request. 

Absolutely. We supply parts for a wide range of defense applications, including UAVs, guidance systems, radar housings, and tactical electronics. 

Yes. We offer laser marking, part serialization, and component-level traceability for military audit compliance. 

We offer anodizing, passivation, chromate conversion, CARC-compatible coatings, and more to ensure durability and compliance. 

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CNC machining is a subtractive manufacturing process where raw material is shaped into its final form by precisely removing material. This involves drilling holes, boring slots, creating pathways, and cutting stock into parts with varying shapes, diameters, and tapers. Unlike additive manufacturing — which builds shapes layer by layer — or injection molding — which forms parts using molten material in a mold — CNC machining achieves accuracy by subtraction.

Its versatility allows CNC machining to work with metals, plastics, wood, composites, foam, and even glass. This wide material compatibility makes it a trusted choice across industries, helping engineers and designers bring concepts to life with accuracy and efficiency.
 

Traditional machining relies on manual operation, where a machinist uses hand controls, dials, and measurement tools to shape and check parts according to design drawings. Skilled operators perform cutting, drilling, milling, or grinding, relying heavily on hands-on precision.

CNC machining performs the same processes but automates them through computer numerical control. Programs direct the cutting tools using Cartesian coordinates, allowing for accuracy and repeatability — whether it’s the first cut or the 500th.

This automation makes CNC machining more precise, consistent, and scalable. It has largely replaced traditional methods in industrial production while still using similar fundamentals of cutting and forming.
 

TUOWEI ensures transparent pricing. For international orders, tariffs and shipping fees are included in the final quoted cost of standard parcels, so there are no hidden charges. 

Yes. TUOWEI provides quick-turn CNC services with lead times as fast as 3–4 days for many parts. For urgent projects, we offer expedite options and work closely with clients to ensure deadlines are met without compromising quality. 

CNC machining is used across a wide range of industries. It plays a key role in aerospace, automotive, medical devices, consumer electronics, robotics, energy, and communications. It’s also applied in oil and gas, agriculture, household goods, and industrial equipment.

Its ability to deliver precision, speed, and versatility makes it one of the most widely used manufacturing processes worldwide.
 

The roots of CNC machining trace back to World War II, when the need for efficient production of aircraft, ships, and vehicles was at its peak. John T. Parsons, working on helicopter rotor blades, was among the first to explore computational methods to achieve complex shapes.

Building on his work, MIT’s Servomechanisms Laboratory developed machines that used numerical control and Cartesian coordinates to automate manufacturing tasks. This breakthrough laid the foundation for modern CNC machining.

Over the decades, CNC technology advanced rapidly, evolving into today’s sophisticated, software-driven systems capable of producing parts with exceptional accuracy and speed.
 

TUOWEI provides multiple inspection solutions to match customer requirements. Every part undergoes a standard inspection included in the quoted price and lead time. For projects needing advanced validation, we offer detailed inspection options such as dimensional reports, CMM checks, and full quality certifications. 

Yes, we provide complete documentation including FAI reports, CMM inspection data, material certifications, and process validation files to support your FDA or international regulatory submissions. 

TUOWEI can scale from single prototypes to tens of thousands of parts per year. Whether you’re launching a new device or need ongoing production support, we have the capacity and infrastructure to deliver consistent quality. 

We operate in full compliance with ISO 13485:2016 and implement FDA-recommended best practices.  

Yes, we offer cleanroom-compatible packaging options and ensure parts are contamination-free and ready for sterile environments.  

In CNC milling, a tool offset is the adjustment applied to compensate for the cutting tool’s length and diameter. This calibration ensures the tool cuts precisely in relation to the workpiece, preventing dimensional errors. By setting accurate offsets, machinists establish the correct machining start point, guaranteeing that parts meet exact specifications. Proper tool offsets are essential for maintaining accuracy, consistency, and high-quality results throughout the milling process. 

While both use computer-controlled cutting, they serve different purposes.
CNC Milling: Built for high-precision machining of metals and hard materials, capable of producing intricate parts with tight tolerances.
CNC Routing: Designed for softer materials like wood, plastics, and composites. Routers operate at higher speeds and are better for cutting large sheets where ultra-high precision isn’t required.
In short, milling prioritizes accuracy and complexity, while routing emphasizes speed and large-format material handling.
 

Both CNC milling and turning are subtractive processes, but they differ in operation.
CNC Milling: The workpiece remains stationary while the cutting tool moves across multiple axes, making it ideal for complex parts with slots, contours, and holes.CNC Turning: The workpiece rotates while the tool stays fixed, making it more efficient for cylindrical components like shafts, bolts, and rings. Milling is best for complex shapes, while turning excels in producing round parts quickly and efficiently. 

TUOWEI Precision provides comprehensive CNC milling solutions, handling parts up to 4000 x 1500 x 600 mm and as small as 5 x 5 x 5 mm. We work with metals, plastics, and composites, achieving tolerances as tight as ±0.01 mm on 5-axis projects. Lead times range from 3–7 days for simple parts to 7–14 days for complex geometries. Additional services like surface finishing, heat treatment, and inspection ensure every part meets the highest standards. 

At TUOWEI Precision, we utilize a full range of CNC milling machines, including 3-axis, 4-axis, and advanced 5-axis systems, to meet diverse project requirements. 

• 3-Axis CNC Milling: Ideal for straightforward operations, handling cutting tasks along the X, Y, and Z axes.
• 4-Axis CNC Milling: Adds a rotational axis for more complex geometries, enabling efficient multi-sided machining.
• 5-Axis CNC Milling: Offers unmatched precision and flexibility, machining intricate parts with complex shapes and angles in fewer setups.
  This range allows us to deliver parts with exceptional accuracy, speed, and consistent quality. 

Both CNC milling and turning are subtractive manufacturing methods, but their approach differs.

In CNC milling, the workpiece remains fixed while the cutting tool moves across multiple axes to create intricate features such as holes, slots, and pockets, ideal for complex, non-cylindrical parts.

In CNC turning, the workpiece rotates while a stationary cutting tool shapes it, making it the most efficient method for producing cylindrical parts like bolts, rings, and rods.
At TUOWEI, we combine both processes when required, delivering cost-efficient, high-quality parts tailored to your design needs.
 

A CNC turning center is an advanced, computer-controlled machine used to produce cylindrical parts with high precision. TUOWEI’s turning centers are capable of performing multiple operations, facing, drilling, threading, boring, grooving, and contouring within a single setup. This versatility allows us to deliver complex geometries and high-volume production of parts such as screws, bushings, shafts, and precision pins, ensuring both efficiency and repeatable accuracy.
 

Yes. TUOWEI’s CNC turning services handle both metal and plastic materials with equal precision. Common plastics we machine include ABS, Nylon, Polycarbonate, PTFE (Teflon), and Acetal. Each plastic has unique benefits—for example, Nylon offers durability and wear resistance, while Acetal provides dimensional stability and excellent machinability. By optimizing cutting speeds and tooling, we ensure that every plastic-turned part is manufactured with high accuracy and surface quality.
 

CNC turning at TUOWEI specializes in manufacturing cylindrical and symmetrical components around a central axis. Typical parts include shafts, pins, rods, bushings, pulleys, and threaded components. The process also enables the creation of internal bores and complex contours, delivering tight tolerances and smooth finishes. These qualities make CNC turning ideal for automotive, aerospace, medical, and industrial machinery applications requiring precise fits and reliable performance.
 

Our advanced 5-axis CNC machines achieve tolerances tighter than ±0.001 inches, depending on material and part complexity. Combined with strict GD&T compliance and rigorous inspection processes, TUOWEI ensures your components meet the highest standards of precision, consistency, and quality.
 

Choose TUOWEI’s 5-axis CNC machining for parts with complex geometries, intricate details, or high-precision requirements. This method is perfect when machining multiple sides in a single setup or when angled tool access is essential. Industries like aerospace, automotive, and medical benefit greatly from this approach, thanks to its ability to shorten lead times and improve surface quality while maintaining tight tolerances.

The cost of 5-axis CNC machining depends on part complexity, material type, and required precision. Typical pricing ranges from $75 to $250 per hour. While the hourly rate may be higher than traditional machining, 5-axis milling often lowers overall costs by reducing setups and production time. For an accurate quote, simply share your drawings and material requirements with TUOWEI.

Yes. TUOWEI’s 5-axis CNC machining achieves exceptionally tight tolerances, often within ±0.005 mm. Because the process allows access to five sides of a part in a single setup, errors from repositioning are minimized. Simultaneous movement along all axes ensures precise tool paths, making it ideal for complex geometries that demand extreme accuracy.
 

To receive a quote, prepare detailed information about your part or assembly, including CAD drawings, material specifications, required quantity, and tolerances. Include any additional processes such as finishing or heat treatment. You can then upload your design files on the TUOWEI Precision online platform to get a fast, accurate pricing estimate.
 

Yes. Precision machining is specifically engineered to deliver exceptionally tight tolerances, often as narrow as ±0.0005 inches. This level of accuracy ensures highly consistent and reliable parts, which is critical in applications where even minor deviations can cause major issues, such as in aerospace components or medical devices. Advanced CNC machines enable this precision consistently across production runs.
 

Precision machining is ideal when your project demands components with extremely tight tolerances, intricate designs, or complex geometries that standard machining cannot achieve. It is crucial for industries like aerospace, medical devices, and electronics. If your parts need to withstand high stress, extreme conditions, or fit perfectly within assemblies, precision machining ensures reliable performance and functionality.
 

Insert molding bonds metal or other inserts directly into the plastic, creating a stronger and more reliable structure. This process reduces the risk of loosening or failure during use. By combining materials into one unified part, it ensures long-term durability. It also enhances resistance to wear, stress, and impacts.
 

Proper insert placement, wall thickness, and material compatibility are critical for success in insert molding. Engineers carefully design molds to hold inserts securely in place during the process. Cooling systems must also be optimized to prevent defects or shrinkage. These considerations ensure high precision and consistent results.
 

Yes, insert molding is suitable for producing both prototypes and large-scale production runs, making it versatile for testing designs as well as manufacturing high-volume parts.
 

Insert molding is widely used in automotive, medical devices, aerospace, consumer electronics, and household goods due to its strength, precision, and design flexibility.
 

Several factors determine how an injection mold is designed. The part’s geometry, size, and complexity directly affect mold features, including cooling channels and gating systems. The type of plastic material impacts shrinkage, flow, and wear on the mold, influencing material choice and design details. High-precision parts demand tighter tolerances, while the ejection system must safely release parts without causing damage. Gate placement and type affect flow, surface finish, and cycle time. Finally, parts with undercuts or complex shapes may require side actions or lifters, increasing the mold’s complexity and overall cost.
 

Injection molding tooling is costly due to a combination of materials, precision, and labor. Molds are usually made from high-quality steel or aluminum, with steel preferred for long production runs because of its durability. The manufacturing process itself is complex, involving CNC machining, Electrical Discharge Machining (EDM), and sometimes hand polishing. Achieving the tight tolerances required for industries like automotive, aerospace, and medical adds to the cost, as does the need for skilled technicians and advanced equipment. Additionally, every mold is custom-designed for a specific product, requiring detailed engineering to handle part geometry, cooling, and ejection systems. These factors together make injection molding tooling a significant investment.
 

Getting started with a sheet metal project at Tuowei is simple and efficient. Begin with a clear design of your component or part. If you are uncertain about dimensions or details, our engineering team can support you by reviewing and refining the design to ensure it is optimized for fabrication.

Once ready, upload your files to our online system, where you can select specifications such as materials, thickness, and finishing requirements. After submission, you’ll receive a tailored quotation that matches your project’s needs.

Following your approval, our team begins production using advanced equipment and proven processes. We keep you updated at every stage, from manufacturing to quality inspection and final delivery.
 

Delivery times depend on design complexity, order volume, and required processes. For straightforward parts, production can be completed in as little as 3 working days after confirming the design and placing the order.

For larger batches or more intricate assemblies, lead times may extend to ensure proper handling and quality assurance. Once your files are submitted through our quoting system, you’ll receive a precise timeline alongside your quote.
 

Pricing for sheet metal fabrication varies based on several factors such as design complexity, choice of material, finishing requirements, and order volume. Simple parts are often more cost-effective due to streamlined processes and automated equipment.

To determine accurate costs, you can upload your design to our quoting platform. After choosing material, thickness, and finish, you’ll receive a clear, itemized estimate.

For complex projects or high-volume production, costs may increase depending on additional processing steps. Tuowei focuses on delivering competitive pricing while ensuring exceptional quality and reliable performance.
 

Tuowei supports both small-scale and large-scale projects, from single prototypes to mass production. We do not impose strict minimum order quantities, allowing businesses of all sizes to access our fabrication services. This flexibility ensures that startups, product developers, and established companies can all benefit from our tailored solutions. 

The K factor in sheet metal refers to a calculated ratio that determines the location of the neutral axis during bending. While the inner surface compresses and the outer surface stretches, the neutral axis remains stable. The K factor helps define bend allowances, ensuring accurate flat length calculations before forming.

Typically, the K factor ranges from 0.3 to 0.5, depending on material type and bending method. Correctly applying this value ensures parts maintain the correct dimensions and functionality after bending.
 

The difference between sheet and plate metal lies in thickness and usage. Sheet metal ranges from about 0.006 to 0.25 inches thick and is widely used for parts that require bending, shaping, or lightweight applications, such as automotive components, appliance housings, and aircraft panels.

Plate metal, on the other hand, starts from 0.25 inches and extends to several inches in thickness. Its strength and rigidity make it ideal for structural applications, including construction, heavy machinery, and bridges. Plate metal is chosen when durability and load-bearing capacity are essential.
 

The cost of laser cutting is influenced by several factors, including the type and thickness of material, since some materials require higher power and longer processing times. The complexity of the design also plays a role, as intricate shapes or detailed patterns take more time to produce. Order quantity affects pricing as well, with larger runs typically reducing the per-part cost through economies of scale. In addition, any finishing requirements such as deburring, anodizing, or powder coating will be included in the overall pricing. At Tuowei, we offer fast and transparent quotations tailored to your specific project.
 

Laser cutting works by directing a high-powered beam through a lens onto the material surface. The beam follows programmed paths, melting or vaporizing the material to achieve the required shape. This method allows for tight tolerances, smooth finishes, and intricate detailing across metals, plastics, wood, and more. It’s an efficient, contact-free process that minimizes material waste and maximizes precision. 

Both processes are widely used, but they serve different needs. Laser cutting uses a focused beam of light to melt or vaporize material, delivering extremely fine detail, smooth edges, and high precision—ideal for projects where accuracy and finish matter most.

Plasma cutting, in contrast, uses an ionized gas jet to cut conductive metals. It’s typically faster for very thick sheets but produces rougher edges that may require additional finishing. While plasma excels in speed for heavy materials, laser cutting is preferred when clean detail and tight tolerances are essential.
 

Production time depends on material type, thickness, and design complexity. Simple cuts on thinner materials can be completed in just a few hours, while thicker sheets or intricate geometries may take longer. At Tuowei, we focus on optimizing efficiency while maintaining strict quality standards. For accurate lead times, we review each project individually and provide a clear estimate based on your specific requirements.
 

Absolutely. Alongside laser cutting, we offer a variety of precision bending services such as V-bending, roll bending, rotary bending, and wipe bending. These processes allow flat profiles to be shaped into functional parts according to your project’s specifications. By combining cutting and bending in-house, Tuowei provides efficient, end-to-end solutions that ensure your final product meets both performance and design requirements.
 

Yes, Tuowei provides both laser engraving and etching for projects requiring detailed markings, graphics, or text. Our skilled team ensures high-resolution results across different materials, whether for functional identification, branding, or decorative applications. Every engraving is sharp, durable, and tailored to your requirements, adding both value and visual appeal to your components.
 

Our laser cutting capabilities adapt to a wide range of materials and thicknesses. For stainless steel and aluminum, we can cut up to 15 mm, delivering clean finishes and structural integrity. With carbon steel, we process sheets up to 25 mm, ideal for heavy-duty applications. For copper, our systems handle up to 12.7 mm with precision, making it suitable for intricate and detailed projects. This versatility enables us to serve diverse manufacturing needs without compromising accuracy.
 

Tuowei’s laser cutting solutions are built for exceptional precision, achieving a cutting accuracy of ±0.002 inches and a positional accuracy of ±0.004 inches. This ensures every part matches your design requirements with consistency. From intricate patterns to repeatable production runs, our laser cutting technology supports industries that demand fine detail, reliability, and flawless edge quality.
 

Yes. TUOWEI Precision offers rapid prototyping services to validate designs before committing to mass production. Prototyping allows for design testing, early detection of issues, and cost-effective adjustments, ensuring a smoother transition to full-scale manufacturing. This step helps optimize performance, minimize risks, and guarantee production-ready parts.
 

Pricing depends on part size, mold complexity, number of cavities, chosen material, and finishing requirements. Every project is unique, so TUOWEI Precision provides customized quotes tailored to your specifications. This transparent approach ensures you understand costs upfront. Upload your CAD files and requirements, and our team will provide a detailed estimate.
 

TUOWEI Precision has no minimum order requirement for injection molding services. Whether you need a single prototype or thousands of units, we deliver the same commitment to quality. Larger orders benefit from cost savings due to economies of scale, making bulk production more affordable per unit.
 

TUOWEI Precision adheres to ISO 2768-c standards for general tolerances, ensuring consistent, reliable part production. For projects requiring stricter specifications, we provide tighter tolerances customized to each client’s needs. This flexibility guarantees parts fit accurately, function correctly, and meet the demanding requirements of industries such as aerospace, automotive, electronics, and medical devices.
 

Injection molding is a systematic process with four critical stages that ensure high-quality, precise plastic parts:Clamping: The two halves of the mold are securely clamped to prevent leakage during injection Injection: Molten plastic is injected into the mold cavity under high pressure for complete filling.

Cooling: The plastic cools and solidifies inside the mold, ensuring correct dimensions and durability.Ejection: Once solidified, the part is ejected from the mold, and the cycle begins again. 

Overmolding is an advanced injection molding technique where two or more materials are combined to create a single, integrated product. The process begins with molding a rigid substrate, such as plastic or metal, which forms the product’s core. A second material—commonly a flexible thermoplastic elastomer (TPE)—is then molded over the substrate. This outer layer improves grip, comfort, and aesthetics while adding functional properties like durability, softness, or color variation. Widely used in industries such as automotive, medical, and consumer electronics, overmolding enhances performance, simplifies assembly, and allows for innovative product designs. 

Overmolding and insert molding are both specialized techniques, but they serve different purposes. Overmolding involves adding a second material layer over an existing molded part, often to improve grip, appearance, or durability. Insert molding, on the other hand, integrates a pre-formed component—such as a metal insert—into the mold before plastic is injected, creating a strong bond between materials. Overmolding is best suited for ergonomic products like handles and grips, while insert molding is commonly used in structural applications, such as automotive parts, where strength and functionality are critical.

Design plays a crucial role in the success of overmolding. The primary and secondary materials must be compatible in terms of adhesion, flexibility, and thermal properties to ensure a durable bond. Product geometry should include features such as undercuts, ribs, or grooves to enhance mechanical interlocking and reduce the risk of peeling. Mold design must be optimized for proper material flow, with careful attention to gating and venting. Finally, tolerances should account for shrinkage and thermal expansion during cooling to maintain dimensional accuracy and meet specifications. 

Yes, EPDM is well-suited for overmolding with thermoplastics. Its flexibility, excellent weather resistance, and ability to withstand extreme temperatures make it ideal for outdoor and automotive applications. To ensure strong adhesion, the EPDM surface may require cleaning or surface treatment before molding. Proper control of temperature and pressure during processing is also essential. When done correctly, EPDM overmolding produces durable, reliable parts capable of performing in demanding environments. 

Quality is maintained using advanced CNC bending technology, precise tooling, and multi-stage inspections. Each part is checked for dimensional accuracy, alignment, and overall integrity, meeting strict industry standards to ensure reliability and durability.
 

Yes, Tuowei offers flexible bending solutions with custom angles and dimensions to meet your project requirements. Our team ensures the final parts match your exact specifications. 

Aluminum is the easiest to bend due to its softness, ductility, and resistance to cracking. Thin aluminum sheets can be manipulated with minimal effort, making it ideal for prototyping and fabrication.
 

Common bending methods include air bending, bottoming, coining, roll bending, and V-bending. Air bending allows flexibility in angles without full die contact. Bottoming ensures precise angles by fully pressing the metal into the die. Coining compresses metal for exact bends, roll bending forms curves or circles, and V-bending uses a V-shaped die for efficient angular bends. 

The minimum bend radius should equal the sheet thickness to ensure proper bending without compromising material integrity. For example, a 1 mm thick sheet should have a bend radius of at least 1 mm. 

Stainless steel provides the greatest resistance due to its high tensile strength and hardness. Its composition ensures durability and corrosion resistance but requires higher tonnage and precise tooling to bend effectively without damage. This makes it ideal for applications demanding structural integrity, such as medical devices, food processing, and marine equipment. 

Maximum thickness depends on the press brake tonnage, bend length, and material properties. Standard machines can bend aluminum and mild steel up to about 12.7 mm (0.5 in.) thick, while stainless steel may be limited to 9.5 mm (0.375 in.) due to higher tensile strength. Bend radius also affects feasibility; thicker metals require larger radii to prevent cracking. 

Die marks occur when the metal is pressed against the die, leaving impressions. Visibility depends on metal type, tool condition, and bending method. Soft metals like aluminum are more prone to marks, but protective films, rubber pads, and well-maintained tools minimize their appearance. Post-processing like sanding, polishing, or painting can further eliminate visible marks for aesthetic-critical applications. 

Tolerances indicate acceptable dimensional deviations during bending. Standard tolerances range from ±0.1 mm to ±0.5 mm, depending on material, thickness, and part complexity. Advanced CNC machines can achieve tighter tolerances, sometimes between ±0.01 mm and ±0.1 mm, suitable for high-precision applications like aerospace or medical devices. Proper tooling ensures bent parts meet design specifications reliably. 

Lead times vary based on part complexity, material, volume, and current workload. Simple bends with standard materials are usually completed within 3–5 business days. Complex parts requiring multiple bends, special materials, or custom tooling may take longer. Expedited services are available for faster turnaround, and early communication helps ensure timely delivery.
 

The choice depends on your project needs. Bending is preferred for clean, continuous lines without seams, improving both strength and appearance. It is typically faster and more cost-effective than welding, reducing material use and energy consumption. Welding, however, is necessary for complex shapes, joining different materials, or creating structures beyond the capabilities of bending. It offers strength for demanding applications, such as heavy machinery or structural frameworks. 

Sheet metal bending is a core fabrication technique where metal is deformed into a desired shape by applying force, usually through a press brake or CNC bending machine. This method allows precise formation of V, U, or channel shapes. The process can range from manual to advanced CNC operations, offering high repeatability and accuracy. During bending, the metal is placed between a punch and die; the punch presses the material into the die to achieve the desired angle and radius without significantly altering thickness. This method produces strong, functional parts efficiently, from small brackets to large architectural elements. 

Yes, post-machining die cast parts is often necessary to achieve precise dimensions and high-quality surface finishes that casting alone cannot provide. This process allows manufacturers to attain tighter tolerances and smoother surfaces, which are essential for both functional and aesthetic requirements. Common post-machining operations include drilling, milling, and CNC machining, which refine the features of the die cast part to exact specifications. Post-machining can also correct minor casting defects such as porosity or surface imperfections and enables the addition of complex features or fine details that are not possible with casting alone. By combining die casting with post-machining, manufacturers can leverage the speed and cost-efficiency of casting for rough shapes while achieving the precision and finish quality of CNC machining for critical dimensions.
 

When designing parts for die casting, it is crucial to focus on factors that ensure both manufacturability and performance. Maintaining uniform wall thickness helps achieve even cooling and solidification, reducing the risk of defects such as warping or internal stresses. While thinner walls save material and speed up cooling, their feasibility depends on the type of metal and the complexity of the part. Including draft angles, typically between 1 and 2 degrees depending on part depth, facilitates easy removal from the die. Incorporating fillets and radii eliminates sharp corners that could create stress concentrations or cracks and also improves molten metal flow. A well-designed gating system ensures proper metal distribution while minimizing turbulence and air entrapment. Proper venting is essential to allow gases to escape, preventing porosity or incomplete filling. Simplifying the part geometry as much as possible avoids undercuts and complex features that require intricate die mechanisms, which can increase tooling costs and complicate production. 

In vacuum casting, the silicone mold is secured in a rigid two-part frame, typically made from aluminum or durable plastic. This frame keeps the mold aligned, prevents warping under vacuum, and ensures a tight seal to avoid resin leaks. Before casting, the mold is clamped firmly inside the frame, allowing the vacuum to draw resin into every detail for clean, precise parts. 

Silicone molds generally last for 15–25 castings, depending on part complexity and the material used. They are best suited for small-batch production before wear affects precision and dimensional accuracy. 

Vacuum casting provides superior surface finish, material strength, and consistency for low-volume production. While 3D printing is faster for single prototypes, it may fall short in mechanical performance or appearance compared to vacuum-cast parts.
 

Urethane casting is an economical choice for producing 20 to 200+ parts. It avoids the high expense and lead time of hard tooling, making it ideal for short runs, bridge production, or early market testing without compromising quality. 

Vacuum cast parts typically achieve tolerances of ±0.1–0.3 mm, depending on part size and geometry. This process delivers excellent surface finish and fine details, making it suitable for both functional prototypes and low-volume end-use parts. 

While Wire EDM is precise and versatile, it has some limitations. It can only cut electrically conductive materials, excluding plastics, ceramics, and composites. Cutting speed is slower than some conventional machining methods, especially on very thick materials, which may increase production time. Operating costs can be higher due to the continuous use of wire and dielectric fluid. Machine setup and programming are complex, requiring skilled operators. Achieving the highest surface finishes may require additional passes, further extending machining time. 

Yes, Wire EDM can cut materials up to 12 inches (300 mm) thick depending on the machine and setup. Using a thin wire electrode to erode the material, it maintains precision without distortion. This capability is essential for large molds, heavy-duty machine components, and aerospace parts, ensuring consistent accuracy in thick, dense materials.
 

Wire EDM can produce highly intricate 2D and 3D geometries, including sharp internal corners, complex contours, and detailed patterns. It can handle thin walls, small holes, and narrow slots with high accuracy. This versatility makes it perfect for aerospace, medical devices, and precision molds or dies where complex and exacting shapes are required.
 

Wire EDM achieves exceptional precision, with tolerances as tight as ±0.0001 inches (±2.5 microns). The thin wire electrode, guided by advanced CNC controls, allows consistent accuracy across complex and intricate shapes. The process also provides smooth surfaces, often reducing the need for post-processing. This level of precision makes Wire EDM ideal for aerospace components, medical devices, and high-precision tooling. 

Yes, Wire EDM can effectively machine hard materials such as hardened tool steels, titanium, tungsten carbide, and superalloys. Using electrical discharges rather than mechanical force, it eliminates tool wear and material distortion while achieving intricate shapes and tight tolerances. This makes it ideal for aerospace, medical devices, and tool and die industries, ensuring high-quality finishes even in the hardest metals. 

There are three main types of EDM processes. Wire EDM uses a thin wire as an electrode to cut intricate shapes and contours in conductive materials with high precision, ideal for aerospace, medical, and electronics components. Sinker EDM (Ram EDM) employs a custom-shaped electrode plunged into the workpiece to create detailed cavities and molds, commonly used in die production and complex part fabrication. Hole-Drilling EDM specializes in creating small, precise holes in hard materials, often used for turbine blade cooling holes or as a preliminary step before wire EDM. 

Common T-slot aluminum extrusion sizes include 10×10 mm, 20×20 mm, 30×30 mm, 40×40 mm, 45×45 mm, 50×50 mm, 60×60 mm, 80×80 mm, 100×100 mm, and 160×160 mm. These profiles are widely used for framing and assembly applications in industries such as windows, doors, and structural construction, though specific sizes may vary depending on the application.
 

There are three main types of dies. Solid dies are used for simple, solid profiles without internal cavities and are the most cost-effective. Hollow dies create enclosed sections or tubes, requiring mandrels and more complex manufacturing. Semi-hollow dies produce partially enclosed sections, like C-channels or angled slots, and have intermediate complexity and cost. Each die type is selected based on the profile design and production requirements. 

Yes, aluminum extrusions are 100% recyclable without any loss of strength or quality. Recycling reduces manufacturing costs and the environmental impact compared to producing new aluminum, while maintaining the same performance for multiple uses. This makes aluminum extrusions a sustainable option for a variety of projects. 

To minimize costs, it’s best to design parts with uniform wall thickness and simple, symmetrical profiles. Avoid deep, narrow channels and excessive slots, as they complicate tooling. Using standard alloys like 6061 or 6063 and ordering larger quantities can spread tooling costs across more parts. Sticking to standard tolerances unless tighter specifications are necessary also reduces expenses. Careful design planning and early collaboration with your extrusion supplier help identify potential cost issues before tooling is finalized. 

The cost depends on several factors. Material type affects price, as standard alloys like 6061 and 6063 are more affordable than specialty metals. Part size is also important because larger profiles use more material and may require larger presses. Design complexity influences cost; simple profiles are cheaper to produce, while complex cross-sections require more expensive tooling and longer setup times. Tight tolerances add additional labor and inspection costs. Other factors include order quantity, surface finish requirements, and whether new dies are needed.  

Yes, Tuowei provides prototyping and small-batch services for aluminum extrusions. Prototypes allow you to test fit and function before committing to full production, verify that dimensions and tolerances meet specifications, evaluate surface finishes and material properties, and make design adjustments early in the development process to reduce costly changes later. 

Typically, recommended wall thickness ranges from 1.0 mm to 2.5 mm. Structural or load-bearing parts usually require thicker walls of 2.0 mm or more to provide strength and rigidity, while lightweight or decorative components may be sufficiently strong with around 1.0 mm thickness. The final choice depends on the alloy, profile complexity, press capacity, and the intended application of the part, ensuring a balance between mechanical performance, weight, and cost.
 

The wall thickness of an aluminum extrusion is influenced by several practical considerations. The type of aluminum alloy plays a role, as softer alloys may need thicker walls for strength while stronger alloys can support thinner sections. Profile design also matters; shapes with deep channels, curves, or unsupported spans often require more thickness for stability. Press capability is another factor, as the size and tonnage of the press determine the thinnest or thickest sections that can be reliably formed. Surface finishing methods like anodizing or coating can affect minimum thickness to avoid distortion, and tighter dimensional tolerances may necessitate thicker walls to ensure consistent output. Overall, wall thickness is determined during the design stage to balance strength, weight, and cost. 

Yes, steel tubing with mechanical connections can be assembled without welding using corner braces, screws, or mechanical clamps. Alternative methods such as mechanical fasteners or adhesives are also viable. While steel profiles offer higher strength than aluminum, they often require more complex assembly processes. For CNC gantries, steel tubing with brackets can be used, though aluminum extrusions remain easier and faster to assemble. 

Tighter tolerances generally increase manufacturing costs because they require precision tooling and extra inspection steps. It’s important to choose tolerances that match your project needs. Standard tolerances work for most applications and help keep costs down. At Tuowei, we follow ISO 9001-C standards, maintaining critical dimensions within ±0.1 mm and other dimensions within ±0.15 mm. Our team helps you select the appropriate tolerance without paying for unnecessary precision.