Aluminum CNC Turning

Aluminum CNC Turning
Details:
As the most versatile material for CNC turning, 6061 aluminum alloy features medium strength, good toughness and excellent machinability. It supports anodizing treatment perfectly. It is widely used for structural parts, shafts, flanges, enclosure accessories, equipment connectors and custom precision turning parts.
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6061 Aluminum Alloy

As the most versatile material for CNC turning, 6061 aluminum alloy features medium strength, good toughness and excellent machinability. It supports anodizing treatment perfectly. It is widely used for structural parts, shafts, flanges, enclosure accessories, equipment connectors and custom precision turning parts.

01

6063 Aluminum Alloy

With softer texture and smooth cutting performance, 6063 aluminum alloy can easily achieve high surface finish, while its structural strength is relatively lower. It is ideal for thin-walled parts, decorative components, simple bushings and profile secondary turning processing.

02

7075 Aluminum Alloy

Known as aviation-grade hard aluminum, 7075 aluminum alloy owns high hardness and superior strength. It comes with higher cutting resistance and is prone to tool adhesion during processing. It is mainly applied in high-precision stressed parts such as high-strength shafts and tooling accessories, requiring optimized tool and processing parameters.

03

5052 Aluminum Alloy

This anti-rust aluminum alloy has great ductility and toughness. It may easily produce built-up edges during cutting, and is commonly used for corrosion-resistant parts, sealing components and thin-walled cylindrical parts.

04

2024 Aluminum Alloy

With high strength but average machinability, 2024 aluminum alloy is mostly used for aviation load-bearing parts and rarely applied in conventional mass turning production.

05

Machining Characteristics and Applications of Aluminum Alloys

Machining Characteristics:

1. Soft texture and high ductility easily cause tool adhesion and built-up edges, resulting in workpiece surface scratches and poor surface finish.

2. High thermal conductivity accelerates heat dissipation during cutting, protecting tools from high-temperature damage but causing thermal deformation of workpieces easily.

3. Low melting point leads to aluminum melting and adhesion on the tool tip under cutting heat.

4. Low elastic modulus causes tool deflection and dimensional deformation in thin-walled parts, bringing challenges to precision control.

5. Continuous long strip chips are commonly generated, which are easy to wind around workpieces and tools.

product-800-533

 

 

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Main Application Products:

Motor shafts, sensor enclosures, fasteners, casing tubes, flange plates, valve fittings, instrument parts, automation equipment aluminum parts, new energy structural components, security enclosure parts, pneumatic and hydraulic system accessories, etc.

 

FAQ

1. Why tool adhesion and scratch marks occur frequently?

Aluminum easily builds edge material. Use sharp aluminum-specific inserts with 15°–25° rake angle, higher speed, lower feed and sufficient aluminum coolant to eliminate sticking and lines

2. What inserts are best for 6061 turning?

Small/medium batch: YW2 carbide; High-volume fine finish: PCD diamond. HSS tools are not allowed for mass production due to fast wear and aluminum buildup

3. How to reduce tool wear for 7075 hard Aluminum?

7075 has high cutting resistance. Use wear-resistant carbide inserts with moderate speed and smaller depth of cut, and strengthened edge to prevent chipping

4. How to fix oval and out-of-tolerance thin-wall parts?

Reduce clamping force, apply multi-pass light cutting, small finishing allowance, final radial cut and sufficient coolant to minimize elastic and thermal deformation.

5. How to avoid long chip wrapping?

Use chip-breaker inserts for aluminum. Avoid low speed & heavy feed. Optimize parameters for stable chip breaking.

6. What are the factors that result in color differences during anodizing?

Rough tool marks, work hardening, and residual oil can lead to irregular oxidation. Ensure that the product maintains a sharp finishing edge and is completely degreased after machining.

 

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