A set of surface roughness reference test pieces for checking surface roughness testers and for visual and tactile comparison of machined surfaces. Each piece carries a surface finish produced by a stated machining process at a stated roughness value, so an inspector can confirm a profilometer is reading correctly or compare a production part against a known reference on the shop floor.
Applications
- Daily verification of portable surface roughness testers before use
- Shop-floor comparison of turned, milled, ground and other machined finishes
- Training and communication of surface-finish requirements between design, production and inspection
Full specifications, process list and roughness values are available on request.