在福特汽车公司的金属冲压分厂中,为了降低成本,提高生产速度,改进产品质量(如翼子板、盖板等),对车间的生产实践给予了极大的注意。为了确定在某一工序中用那种模具钢最合适,往往需要做很多试验。对于买进的材料和零件也需要有简便的检查方法。从以下两个典型例子看,有时可以得到很可观的改进。 I 翻边模钢材的选择 制造一个汽车车身冲压件一般需要4到6道工序,包括冲裁,拉延成形,切边,翻边。其中,翻边工序虽然简单,但经常是最 At Ford Motor Company’s Metal Stamping Plant, great attention has been paid to the workshop’s production practices in order to reduce costs, increase production speed and improve product quality (eg fenders, covers, etc.). It is often necessary to do a lot of testing to determine the best fit for the tool steel in a process. For the purchase of materials and parts also need to have a simple inspection method. Judging from the following two typical examples, sometimes considerable improvements can be made. I Flanging die steel options Making a car body stamping parts generally require 4 to 6 processes, including blanking, drawing forming, trimming, flange. Among them, the flanging process is simple, but often the most