The processing of coarse and fine mechanical parts should be separated to ensure the precision of precision parts. Because when the rough mechanical parts are machined, the cutting amount is large, the cutting force, clamping force, heat and precision machining surface of the workpiece have obvious work hardening phenomenon, and the workpiece is in a large internal stress. If rough, rough mechanical parts are finished. After continuous, the accuracy of the part will soon be lost due to stress re-divisioncloth. Processing of mechanical parts for some high precision parts. After roughing and finishing, the low temperature annealing process should also be arranged or aging to eliminate internal stresses.
What kind of changes have the precision parts processing brought to the industry?
Third, in the processing route of high-precision mechanical parts, pay attention to the need to arrange heat treatment process. The location is as follows: heat treatment process, metal to improve its cutting performance, such as annealing, normalizing, tempering, generally arranged in the processing of mechanical parts. Eliminate internal stresses, such as aging treatments, adjustment treatments, such as general layout, after roughing, but at completion. In order to improve machinery
Performance components, such as carburizing and quenching, are generally arranged for machining of mechanical parts. If the deformation is large after heat treatment, but the final processing is also arranged.
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