摘要
通过对Cr12钢模具的应用失效分析,针对其在模具应用中的局限性,经过840～850℃淬火,180～200℃回火的低合金模具钢Cr2,通过刃口表面电火花强化处理,有效避免模具应用中的劈裂和断裂,其使用寿命与Cr12钢相比大大提高.
Through analysis of the failure example of Cr12 steel dies,some limitations in the dies made of the Cr2 steel were found.The Cr2 steel dies quenched at 840～850 ℃ and tempered at 180～200 ℃ was processed by the surface electrical discharge strengthening technology,the failure of the steel dies could be effectively avoided and the life of the dies could be greatly improved comparing with the Cr12 steel dies.
