Surface finishing guides for CNC parts: compare anodizing, plating and powder coating, and define masking, appearance, thickness and inspection requirements.
Use the categories above to move between machining fundamentals, drawing preparation, material choices and inspection strategy.
Type II vs Type III anodizing on CNC aluminum is a thickness and duty-cycle choice, not a color preference. MIL-A-8625 Type II sulfuric anodizing is 0.00007 to 0.0010 in (1.8 to 25.4 µm). Type…
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How to spec anodizing on a CNC drawing is a finish-block problem: Type, Class, thickness, and which dimensions are post-coat. Write MIL-A-8625 Type II (1.8-25.4 µm) or Type III (12.7-114 µm), Class 1 or…
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Aluminum CNC mask anodize for grounding is a drawing task: keep anodic oxide off the earth path. Type II (1.8-25.4 µm) and Type III (12.7-114 µm) films are electrical insulators. Hatch every grounding pad,…
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