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1.前言从事产品和工装设计的技术人员,一般希望能从图表很快地查出一些需要的数据,不进行复杂的计算,以节约时间和避免计算错误。本文是作者1964年提出为板金冲压工艺人员由表或线图查带凸缘及不带凸缘的杯形压延件压延系数m的报告。查得m值后,可以很方便地计算出毛料直径D。为了查表或线图,只需要进行一些简单的预先计算工作。 2.基本方程如图1所示的杯形件,其毛料直径可用下式求得:
1. Introduction Technicians engaged in product and tooling design generally expect to quickly find some of the required data from charts without complex calculations to save time and avoid computational errors. This article is the author in 1964 proposed for the sheet metal stamping process by the table or line drawing with and without flange cup-shaped calender rolling factor m report. Check m value, you can easily calculate the wool diameter D. In order to look up a table or line graph, only a few simple precalcining work is required. 2. The basic equation shown in Figure 1 cup, the wool diameter can be obtained by the following formula: