步骤内容：
Step contents:
（1）分析研究产品的装配图和零件图。
(1) Analyzing and studying assembly drawings and parts drawings of products.
（2）确定毛坯。
(2) Determine the blank.
（3）拟定工艺路线，选择定位基面。
(3) Drawing up the technological route and choosing the base plane for positioning.
（4）确定各工序所采用的设备。
(4) Determine the equipment used in each process.
（5）确定各工序所采用的刀具、夹具、量具和辅助工具。
(5) Determine the tools, fixtures, measuring tools and auxiliary tools used in each process.
（6）确定各主要工序的技术要求及检验方法。
(6) Determine the technical requirements and inspection methods of each main process.
（7）确定各工序的加工余量，计算工序尺寸和公差。
(7) Determine the processing allowance of each process, calculate the process size and tolerance.
（8）确定切削用量。
(8) Determine the cutting parameters.
（9）确定工时定额。
(9) Establishment of man-hour quotas