【摘要】 依据机械零件的功能要求,考虑其使用性、工艺性和经济性的综合效果,论述了设计图样中经常出现的各种公差之间的关系,分析了确定形位公差应注意的一些问题;并阐述了标注形位公差时公差项目、基准和公差数值的基本准则。更多还原

【Abstract】 The relationships among all kinds of tolerance in design drafting were discussed according to the functional requirements of components.The integrated effects of its service performance,technology and economical efficiency were also taken into considerations.Some particulars must be paid attention when determiningshape-position tolerance.Ground rules of tolerance items,reference and values were also presented.更多还原