发动机连杆热锻模电解加工装置的设计

Design on ECM Device for Engine Connect Rod Hot-working Die

针对热锻模硬度高、形状复杂、表面质量要求高、脱模效果好的加工难题,提出了电解加工成形方法。以发动机连杆热锻模为研究对象,进行了热锻模主型腔和飞边槽的电解加工阴极及其装置的设计。结果表明,采用电解加工成形方法实现了高效率、低成本、无切削应力、型腔结构一次成形的热锻模生产加工,采用该热锻模生产的热锻件符合图纸加工要求,取得了显著的经济效益。

Electrochemical machining （ECM） molding was adopted to realize hot-forging die with high hardness, complex shape, high requirement for surface quality and sound demold effect. With the object of engine connecting rod hot-forging die, ECM cathode and device for hot-forging die main cavity and flash cavity were designed. The results indicate that ECM shaping can achieve hot-forging die machining with high efficiency, low cost, no cutting stress and cavity primary shaping, and the machined hot-forging piece coincides well with the blueprint and obtains notable economic benefit.