Surface roughness of CNC machined parts
What is Surface Roughness The surface of the machined parts cannot be absolutely smooth and flat, and there are actually some geometric errors, and the surface roughness is an indicator of the geometric errors. Factors Affecting Surface Roughness of CNC Machined Parts Residual area The area of the remaining uncut part of the two cutting edges on the machined surface is called the residual area. The larger the residual area, the higher the height and the greater the surface roughness value. Dust accumulation After the built-up edge is used for constant-speed cutting of plastic metal, because the built-up edge is both irregular and unstable, on the one hand, its irregular part replaces the cutting edge for cutting, leaving traces of different depths; The fallen built-up edge is embedded in the machined surface of the workpiece, causing it to form hard spots and burrs, and the surface roughness value increases. Vibration Periodic vibration of tools, workpieces ...