摘要
研究二环尺寸链在机械加工工艺过程尺寸链中的地位。结合实例论述求解机械加工工艺尺寸及公差的基本思路;提出二环机械加工工艺过程尺寸链是并联尺寸链中求解和处理工序尺寸的偏差时重要决定因素。指出传统的“工艺尺寸链”提法易产生混淆和误解,并提出修改这一名称的建议。
Investigates position and importance of the 'two-linkdimensional chain'. With an example, discusses the basic thought to solve machining dimension and tolerance of workpiece, proposes and expounds that the two-link dimensional chain is an important and decisive factor to find deviation of machining dimension in the parallel dimensional chain. Points out that the traditional 'processing dimensional chain' is easy to be confused and misunderstanded,and so suggests it should be changed by e.g. 'machining dimensional chain' etc.
关键词
尺寸公差
尺寸链
机械加工工艺
Dimensional tolerances
Allowance
Deviation
/Dimensional chain
