Will CNC machining precision requirements be higher?

Use a milling cutter with a larger diameter, and the speed should be as high as possible, but the machine should not vibrate. Leave 0.3-0.5mm margin for rough milling before finishing. Whether it can reach it depends on whether the linear speed of the milling cutter is enough and the blade is sharp. . A milling cutter with a larger diameter is required to easily achieve high linear speeds. It is not good to increase the speed without increasing the diameter of the milling cutter. In general, it can reach 0.8 roughness. In addition, add enough cutting fluid when finishing milling.

What is the surface roughness of general CNC machining?

Generally, ordinary machine tools are processed at about 3.2, and high-speed machines can reach a finish of 1.6; pay attention to the tools and cutting parameters used in processing.

Is the smaller the surface roughness of the part, the finer it is?

• 1. About profile meter and roughness meter The profile meter and roughness meter are not the same product. The main function of the profile meter is to measure the contour shape of the part surface.For example: the groove depth, groove width, chamfer (including chamfer position, chamfer size, angle, etc.) of grooves in auto parts, straightness of the cylindrical surface, and other parameters. In short, the profiler reflects the macroscopic outline of the part.
•  2. The function of the roughness meter is to measure the surface processing quality of the grinding/finishing process of the part surface. In layman's terms, the surface of the part is not polished (the old national standard for roughness is called smoothness), that is, the roughness reflects The microscopic condition of the machined surface of the part.