Machining is a very demanding and rigorous process, and the quality requirements for operators are also very high. Because it is necessary to guarantee high precision and high precision machining, what principles should be paid attention to in the machining process?
The first point: To separate coarse and fine parts, because the cutting force, clamping force, and the amount of heat applied to rough and fine work pieces are all different, and the amount of rough machining compared to fine machining is different. The cutting force and the amount of heat generated are obviously larger than those of the fine processing. Moreover, the machining surface is more prone to hardening, and its internal internal stress is also larger. Therefore, in order to ensure the high precision of the machining, it is necessary to separate the rough machining and the fine machining. For parts with extremely high accuracy requirements, they should be placed before the rough machining and before the fine machining. In addition, the low-temperature annealing should be used to eliminate the internal stress to ensure its high accuracy.
The second point: The choice of equipment must also be reasonable and accurate. For rough machining, it should be performed on a machine with a large power, because its main purpose is to cut away most of the machining allowance. The accuracy requirement is not as high, but it is fine. Processing requires the selection of high-precision machine tools for machining. Choosing a machine tool that is reasonable can both ensure the accuracy of the machining and extend the service life of the machine tool.
The third point: The order in which the machining processes are reasonably arranged is also important. For example, the heat treatment process should be arranged before the machining; the failure process, quenching and tempering process to eliminate the internal stress should be arranged after the roughing process. Before; general arrangements such as carburizing, quenching, and tempering to improve the mechanical properties of parts were performed after machining.
To sum up, the complaint of mechanical processing is a very rigorous process, which requires the operator to accurately carry out the processing principle