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机械加工工艺规程是规定零件切削加工工艺过程和操作方法等的工艺文件。主要步骤有:分析零件图样、确定毛坯、拟定工艺路线、确定各工序的加工余量和工序尺寸及其公差、确定各工序的机床设备及刀夹量具、确定切削用量、确定工时定额和填写工艺文件。
Machining process rules is the provisions of parts machining process and operating methods and other process documents. The main steps include: analysis of parts drawings, to determine the rough, the preparation of routing, to determine the process of allowance and process size and tolerances, to determine the process of machine tools and tool holders to determine the amount of cutting, to determine the working hours quota and fill in the process file.