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If there is a large deformation after heat treatment, the final processing procedure must be arranged. (5) The structure and arrangement of the handle handwheel buttons must comply with the regulations. The start button should be installed in the casing or a guard ring should be installed to prevent accidental activation. The handwheel handle installed on the shaft will rotate with the shaft to hurt people during automatic feeding, so an automatic escape device should be installed for CNC machining.

      In the process of precision machining, we need to cut the excess metal thickness of the surface layer from the part blank through various machine tools to produce the required shape and qualified mechanical parts, that is, the precision machining allowance. Precision machining can generally be divided into two types: process allowance and total allowance. In precision machining, it generally includes multiple processes, so it cannot be processed to the size marked on the drawing at one time. In a certain process, the thickness of the surface layer metal we need to remove is called the machining allowance of the machining process.

      For efficient metal cutting, the machining material tool cutting conditions are a major factor. These factors determine machining tool life and machining quality. A cost-effective machining method must be a reasonable choice of cutting conditions.

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