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一、模具应具备的性能模具应具备的性能是耐磨、不崩刃和长寿命。为了耐磨和不崩刃,则必须具有一定的硬度和韧性。说到寿命,则模具必须具有一定的耐热性。模具在使用中由於摩擦生热,使工作部份(型腔表面或刃口部份)的温度升高,有时可达500～600℃。为此,模具必须有一定的耐热性。即使是冷作模、在高速连续冲压或加工不锈钢等导热系数很低的钢材(约为普通钢材的三分之一)时,刃口温度也可上升到400～500℃。这样,看起来是冷加工,而实际上却是热加工。所以,冷作模具材料也要有一定的耐热性。
First, the mold should have the performance Mold should have the performance is wear-resistant, non-chipping and long life. In order to wear and not chipping, you must have a certain degree of hardness and toughness. Speaking of life, the mold must have some heat resistance. Mold in use due to friction heat, the working part (cavity surface or edge part) temperature, and sometimes up to 500 ~ 600 ℃. To this end, the mold must have some heat resistance. Even with cold dies, the cutting edge temperature can be raised to 400 to 500 ° C when high-speed continuous punching or processing of steel with a low thermal conductivity such as stainless steel (about one-third of that of ordinary steel) is performed. In this way, looks cold, but in fact it is thermal processing. Therefore, cold work die material also have some heat resistance.