Aluminum

High machinability and ductility, good strength-to-weight ratio.

Description

Application

CNC machining produces parts with excellent mechanical properties, accuracy and repeatability from metal and plastic. 3-axis & 5-axis CNC milling available.

Strengths

Excellent mechanical properties,High accuracy & repeatabillity

Weaknesses

Greater geometry restrictions than 3D printing

Properties

Lead Time

< 10 days

Wall Thickness

0.75 mm

Tolerances

±0.125mm (±0.005″)

Max part size

200 x 80 x 100 cm

6061 Aluminum CNC Machining Service

A versatile and widely used alloy known for its excellent machinability, weldability, and corrosion resistance. It is ideal for structural applications, bike frames, aerospace components, and automotive parts.

Tensile Strength, Yield (MPa)

276

Fatigue Strength (MPa)

Elongation at Break (%)

Hardness (Brinell)

Density (g/cm³)

2.70

2024 Aluminum CNC Machining Service

This high-strength alloy is often used in aerospace applications due to its excellent fatigue resistance and high strength-to-weight ratio. It’s suitable for aircraft structures, truck wheels, and automotive parts.

Tensile Strength, Yield (MPa)

325

Fatigue Strength (MPa)

140

Elongation at Break (%)

Hardness (Brinell)

120

Density (g/cm³)

2.78

Surface Finishing Options for Aluminum

Aluminum CNC machined parts can undergo different surface finishing processes to improve appearance, corrosion resistance, wear resistance, and overall performance.

✓ As Machined
✓ Bead Blasting
✓ Anodizing Type II & III
✓ Powder Coating
✓ Brushed Finish
✓ Polishing
✓ Electropolishing
✓ Painting
✓ Tumbling

Small silver metal block with a fine matte textured finish on a gray background, raw stock for CNC machining

Pros and Cons of Aluminum CNC Machining

Aluminum offers many benefits that make it suitable for CNC machining processes. However, there are some downsides of aluminum parts machining to consider before choosing it for any project.

Pros

Lightweight: Aluminum is among the lightest metals, with just over 2.7 g/cm³ density. This makes it ideal for applications in transportation and other industries where weight is a vital factor.
Corrosion Resistance:: Aluminum naturally resists corrosion, which helps prevent oxidation. Combined with various coatings and finishes, this property ensures that aluminum CNC parts are durable and long-lasting.
Conductivity: Aluminum is an excellent conductor of heat and electricity. This makes it ideal for many applications, similar to copper and other similar conductive materials.
High Machinability: Aluminum is popular because it is easy to machine. It can be easily shaped, drilled, and folded, allowing for the creation of complex shapes.
High-Temperature Resistance: Unlike some materials, aluminum maintains its properties at low temperatures, offering more flexibility in the machining process.

Cons

Lightweight: Aluminum is among the lightest metals, with just over 2.7 g/cm³ density. This makes it ideal for applications in transportation and other industries where weight is a vital factor.
Corrosion Resistance: Aluminum naturally resists corrosion, which helps prevent oxidation. Combined with various coatings and finishes, this property ensures that aluminum CNC parts are durable and long-lasting.
Conductivity: Aluminum is an excellent conductor of heat and electricity. This makes it ideal for many applications, similar to copper and other similar conductive materials.

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