Today we share with you the processing stages of precision mechanical parts.
Precision parts processing is not possible to complete all the processing content of all surfaces within one process, the entire processing process of precision parts processing can be divided into the following stages.
(1) roughing stage. Cut off most of the machining allowance of each processing surface, and processing of precision benchmarks, mainly considering the greatest possible increase in productivity.
(2) Semi-finishing stage. Cut off the defects that may arise after rough machining, and prepare for the finishing of the surface, requiring a certain machining accuracy and ensuring the appropriate finishing allowance, while completing the machining of the secondary surface.
(3) Finishing stage. In this stage using a large cutting speed, small feed and depth of cut, remove the finishing margin left by the previous process, so that the surface of the part to meet the technical requirements of the drawing.
(4) finishing stage. Mainly used to reduce the surface roughness value or strengthen the machined surface, mainly for surface roughness requirements are very high (ra ≤ 0.32 μm) surface processing.
(5) Ultra-precision machining stage. Machining accuracy in 0.1-0.01 μm, surface roughness value ra ≤ 0.001 μm processing stage. The main processing methods are: precision cutting, fine mirror grinding, precision grinding and polishing, etc.
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