Smooth machining (Ra 1.6μm/Ra 64μin)
A light finishing pass after the roughing work takes surface roughness down to Ra 1.6μm (64μin) — half the as-machined figure. It costs machine time rather than a separate process, so the part never leaves the shop. Light scratches remain visible at that level.
Requirement
Specification
Cosmetic availability
Non-cosmetic
Example of a smooth machined part
As machined
Smooth machining