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覆盖有贝氏体叠层钢板的锌基合金冲模,是以普通锌基合金材料作基础凹模,用高强度贝氏体叠层钢板作为凹模刃口的组合模具。冲裁时该模既能满足凹模刃口的强度要求;又能使冲件的断面质量提高。从而使普通锌基合金的应用范围得到了发展。 1.基础凹模的加工工艺及贝氏体叠层的获得基础凹模的加工,我厂利用废旧泥芯、砖或用精度要求不高的凸模浇注凹模,其型腔可用超塑加工挤出,亦可用机加工完善。我厂采用65Mn板材作为贝氏体叠层材
Zinc-base alloy die covered with bainitic laminated steel plate is a composite die made of ordinary zinc-based alloy material as the basic concave die and high-strength bainitic laminated steel plate as the concave die edge. Blanking when the die can meet the strength requirements of die edge; but also to improve the quality of red cross-section. So that the application of the general zinc-based alloys has been developed. 1. Basic die processing technology and bainite lamination to obtain the basis of the die processing, I use the factory waste mud core, brick or less precision punch pocketed, the cavity can be super-plastic processing Extruded, can also be machined perfect. Our factory uses 65Mn sheet as bainite laminated material