机械加工中假废品现象的剖析

Analysis of false waster phenomenon in the mechanical machining process

在机械加工过程中,假废品是一种常见现象,但在满足位置精度要求时出现的假废品现象往往被忽视.以钳工加工凹凸体为例,阐述满足位置精度要求时假废品的成因,以及如何运用工艺尺寸链理论确定其合格品区、假废品区和废品区,以免将实际合格的零件报废而造成浪费,这对零件的加工精度,提高生产效率和降低成本都有一定的实际价值.

In the machining process,the technological benchmarks ofen deviated from the design benchmarks for the convenience of working and measuring,and produce false waste products.The theory of the technological dimensional chain must be adopted to fixing the processing size,in order to determine the qualified products area、false waster area and waster area,so as not to scrap qualified parts and cause wastage.The paper describes how to correctly identify the false waster area,thereby increasing production rate and...