多工位级进模是精密、高效、长寿命的模具,其结构比较复杂,制造比较困难,对其正确的使用也有较高的要求。在当前引进的许多技术中都有高精密的级进模,为了能更快的消化吸收国外的先进技术,使引进模具国产化是摆在我国模具行业面前的重要任务。为此,本刊请我国模具界的老专家陈良杰同志撰写了这篇讲座,以期推进级进模设计技术的发展。 Multi-position progressive die is a precision, high efficiency, long life mold, its structure is more complex, more difficult to manufacture, its correct use also has higher requirements. In the current introduction of many of the technologies have high precision progressive die, in order to digest and absorb faster foreign advanced technology, the introduction of mold localization is placed in front of China’s die industry an important task. To this end, the magazine invited China’s mold industry, old expert Comrade Chen Liangjie wrote this lecture, with a view to promoting the progressive die design technology.