6061 aluminum offers good machinability, corrosion resistance, and moderate strength, making it ideal for general-purpose CNC parts such as housings, brackets, and enclosures.
7075 aluminum, on the other hand, provides significantly higher tensile strength and hardness, close to some steels, but has lower corrosion resistance and slightly higher machining cost.
In practice, 6061 is used for cost-sensitive and structural applications, while 7075 is selected for high-stress, aerospace, and performance-critical components.

For standard aluminum CNC machining, we typically maintain tolerances of ±0.01 mm.
With precision 5-axis machining and controlled production processes, critical features can reach as tight as ±0.005 mm depending on geometry and part complexity.
Final achievable tolerance also depends on part structure, wall thickness, and material stress behavior.
Each part is verified using CMM inspection to ensure dimensional accuracy before shipment.

Yes, thin-wall aluminum machining is possible with proper process control.
Aluminum has a relatively low stiffness, so thin structures are sensitive to cutting forces and heat.
We reduce deformation risk through optimized tool paths, multi-stage roughing and finishing, stress-relief pre-machining, and controlled cutting parameters.
For highly sensitive parts, we also recommend design optimization (DFM review) to improve rigidity before production.

We offer a full range of surface finishing options, including anodizing (clear, black, and color), hard anodizing, sandblasting, powder coating, and electrophoretic coating.
Anodizing is the most commonly used finish, providing improved corrosion resistance, surface hardness, and aesthetic appearance without significantly increasing part weight.
Surface treatment selection depends on application environment, wear resistance requirements, and cosmetic needs.

Yes, anodizing can slightly affect final dimensions due to oxide layer formation.
Standard anodizing typically adds around 5–25 microns of thickness per surface, depending on specification and process type.
For precision parts, we compensate for this change during machining to ensure final assembled dimensions remain within tolerance after finishing.

CNC machining cost can be reduced through several design and process optimizations:

• Avoid deep cavities and overly complex geometries
• Maintain consistent wall thickness
• Reduce unnecessary tight tolerances
• Select standard aluminum alloys like 6061
• Minimize secondary operations when possible

We also provide DFM (Design for Manufacturability) feedback to help optimize your design before production, reducing both machining time and cost.

Custom aluminum CNC parts are widely used in aerospace, automotive, robotics, electronics, medical devices, semiconductor equipment, and industrial automation.
Aluminum is preferred due to its lightweight properties, good thermal conductivity, corrosion resistance, and excellent machinability, making it suitable for both structural and functional components.

Lead time depends on part complexity, quantity, and surface finishing requirements.
Prototype parts are typically delivered within 3–7 working days.
Small batch production usually takes 7–15 days.
For larger volumes or complex multi-process parts, delivery schedules are confirmed after technical review of drawings.

We accept STEP, IGES, STL, and PDF drawings for quotation and production.
For accurate pricing, please also provide material requirements, quantity, surface finish specifications, and any critical tolerances.
Our engineering team will review your design and provide a quotation along with manufacturability suggestions if needed.