一、前言由于少切削和无切削生产的发展,热作模具的需要量越来越大,对寿命的要求也越来越高。为适应工业发展的需要,我们在哈尔滨轴承厂、第一汽车制造广、哈尔滨量具刃具厂的大力协助下,对采用新材料制造热作模具,进行了一些初步的试验研究工作。试验的结果初见成效。我们采用的新材料有两种: First, the preface Due to the development of less cutting and non-cutting production, the demand for hot-working die is getting bigger and bigger, and the requirements for life are also getting higher and higher. In order to meet the needs of industrial development, we have carried out some preliminary experimental researches on the hot-die manufacturing using new materials with the great help of Harbin Bearing Factory, No.1 Automobile Manufacturing Factory and Harbin Measuring & Cutting Tool Factory. The results of the trial initially achieved results. There are two new materials we use: