Why Choose Anodized Surface Treatment for 6061 Aluminum Machining

What Are The Characteristics of Surface Treatments for 6061 Aluminum Parts Machining

• 6061 aluminum is the preferred material for CNC-machined parts intended for anodizing; it offers consistent quality during the anodizing process, achieving a yield rate of over 98%.

• The sandblasting quality is controllable and consistent; during mass production, it maintains uniform surface roughness, avoids localized over- or under-blasting, and ensures no significant color variation.

• Other optional processes：Supports various secondary surface treatments, including brushing, passivation, laser engraving, and CNC logo engraving.

Reference Table for CNC Machining Tolerance Control of 6061 Aluminum Alloy

Part structural type	Normal production tolerances	High precision machining tolerances
Standard solid block-shaped parts	±0.02mm	±0.005mm
Standard shaft-type and bore-type parts	±0.015mm	±0.003mm
Thin-walled parts with a wall thickness of 1–2 mm	±0.03mm	±0.01mm
Ultra-thin-walled parts with a wall thickness of 0.5–1 mm	±0.05mm	±0.02mm
Deep-hole parts with a depth-to-diameter ratio of ≥5:1	±0.03mm	±0.015mm
Large-format (≥300 mm) substrates	±0.05mm	±0.02mm

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