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在制造或购买模具时,极为常见的是只考虑初置成本。在制造模具时虽然多花费占投资10％或15％的费用,但在一年内却往往可以因而获得500％的利润。例如;一套新的模具装上了冲床并试冲1000件,一切似乎都很正常,冲件检查合格,一星期后模具再次装上冲床,打算冲制50,000件,但冲了10,000件时一个冲孔冲头断裂,把模具拆下来进行检查,发现模具里塞满了废料,压力胀裂了模具,损坏了导套并折断了冲头,修理费用要50.00美元。实际上,只要在制造模具时花15分钟,将模板上的废料孔扩成锥孔,所有问题就都可以得到解决。
When manufacturing or purchasing molds, it is quite common to consider initial costs only. Although it takes more than 10% or 15% of the investment in mold manufacturing, it often can get 500% profit in one year. For example; a new set of molds fitted with a punch press and test 1000, everything seems to be normal, check the pieces pass, a week after the mold is loaded punch, plan to punches 50,000, but washed 10,000 when a Punching punches rupture, the mold removed for inspection and found the mold filled with waste, the pressure burst mold, damaged the guide sleeve and broken punch, repair costs to $ 50.00. In fact, all the problems can be solved by expanding the waste hole on the formwork into a tapered hole as long as it takes 15 minutes to make the mold.