机械加工工艺规程设计概述(ppt 71页)

主要内容
第一节  概述
第二节   工艺路线的制订
第三节   加工余量、工序尺寸及公差的确定
第四节 工艺尺寸链
第五节时间定额和提高生产率的途径
第六节  工艺方案的比较与技术经济分析                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    

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