几年来我国模锻生产技术有了很大的发展,不论在产量及工艺技术上都有了增加和进步。说明我国模锻工艺技术已经具有一定的规模和水平,并正为祖国的四化作出更大的贡献。但是在生产实践中,在各种模锻件的尺寸公差方面尚缺少一种有关质量方面的标准,这就在专业化协作订货、产品设计,冷热加工互提要求,模锻件生产中的质量、模具寿命、产品检验等等引起了不少问题。此外锻造工程技术人员在进行工艺准备的时候,也因为没有一个统一的技术 Over the past few years our country forging production technology has made great development, both in production and technology have increased and progress. This shows that our country forging technology has a certain scale and level, and is making greater contribution to the motherland’s four modernizations. However, in the practice of production, there is a lack of quality standards for the dimensional tolerances of all kinds of die forgings. This is why the quality of die forgings, the quality of die forgings, Die life, product testing, etc. caused a lot of problems. In addition forging engineers and technicians in preparation for the time, but also because there is no uniform technology