Chromate Conversion Coating for CNC Parts: Types and Classes
Chromate conversion coating on CNC machined parts: how Type I and Type II chemistries differ, what the class controls, and where masking is actually needed.
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Surface Finishes
Practical engineering guidance for CNC machining decisions.
Latest technical guides
Electroless Nickel Plating for CNC Parts: Thickness and Fit
How electroless nickel plating behaves on CNC parts: phosphorus classes, deposit growth on threads and bores, bake requirements, and how to call it out.
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Black Oxide Finish for CNC Parts: What It Is and When to Use
Black oxide finish converts steel at the surface into magnetite, so the black belongs to the metal. What it changes, what it protects, and how to call it out.
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Passivation vs Electropolishing for Stainless Steel CNC Parts
Passivation vs electropolishing for CNC machined stainless parts: what each process removes, effect on Ra and dimensions, masking, and how to call it out.
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Ra vs Rz Surface Roughness: Which Should You Specify?
Ra vs Rz measure surface roughness in different ways. See what each parameter keeps, how the two numbers relate, and which one to call out on a CNC drawing.
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Deburring CNC Machined Parts: Methods, Edge Specs, and Cost Impact
Deburring CNC machined parts: how burrs form, which method suits cross-holes and thin walls, how to write an edge break callout, and what drives the cost.
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