一、前言热锻是重要的塑性加工技术之一,它具有能大批生产、产品质量稳定的优点,因此大量用于实际生产中。然而对于不同的产品和锻造设备,当使用各种相应的金属模具时,其锻造模具坯料费的比例占冶金工具费的10％,因此为防止金属模破坏以及改善其寿命是大有益处的。但是,如何防止热锻用金属模破坏以及改善其寿命,过去没有花费很大的精力去研究。因为金属模的破坏牵涉到模具钢的材料内在质量和模具设计、制造以及锻造操作等因素,所 I. Foreword Hot forging is one of the important plastic processing technologies. It has the advantages of mass production and stable product quality, so it is widely used in actual production. However, for different products and forging equipment, when the corresponding metal molds are used, forging mold blanks account for 10% of the metallurgical tool fee, and thus it is greatly advantageous to prevent metal mold damage and to improve the life of the metal molds. However, in the past, no efforts have been devoted to research on how to prevent the metal mold for hot forging from breaking down and improve its life. Because the destruction of the mold involves the inherent quality of the mold steel material and mold design, manufacturing and forging operations and other factors,