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康明斯大功率柴油机KV_(12)曲轴,1991年10月在第二重机厂模锻分厂的100tm无砧座对击锤上试锻成功。康明斯三种系列柴油机是重庆汽车发动机厂引进的主要产品,有关部门要求尽快实现这三种产品曲轴毛坯国产化。KV_(12)曲轴材质为42CrMoA,锻件总长1852mm,重达340kg,六拐呈120°分布,形状复杂,技术要求高。它不仅成形困难,而且其工装制作
Cummins high-power diesel engine KV_ (12) crankshaft, in October 1991 in the second heavy machine factory forging branch of 100tm no anvil on the hammer forging success. Cummins three series of diesel engines is the introduction of Chongqing Automobile Engine Factory main products, the relevant departments require the realization of these three products crankshaft blank localization. KV_ (12) crankshaft material 42CrMoA, forging the total length of 1852mm, weighing 340kg, six roundabout 120 ° distribution, complex shape, high technical requirements. It is not only difficult to form, but also its tooling