一、概述: 建国三十年来,电子工业有了很大的发展,在电子产品中,约有60—90％的零件是经冲压机械加工和塑压成型等加工技术制造出来的。因此,工模具生产的好坏,是直接影响电子产品的质量、数量、品种和成本的重要因素之一。在电子工业中,模具制造的劳劳量,约占整个工装制造劳动量的60—90％,而模具中的冷冲模又占模具总数的大部分。因此,各单位对于模具设计与制造如何保证产品质量,提高生产率,降低生产成本、延长 I. Overview: The founding of the country three decades, the electronics industry has made great progress in electronic products, about 60-90% of the parts are processed by stamping and plastic molding and other processing technology created. Therefore, the mold production is good or bad, is a direct impact on the quality of electronic products, quantity, variety and cost of one of the important factors. In the electronics industry, the labor cost of mold making accounts for about 60-90% of the total tooling effort, while the cold dies in the molds account for the majority of the total number of molds. Therefore, all units for the mold design and manufacture of how to ensure product quality, increase productivity, reduce production costs and extend