Study on Bending and Upsetting Forging 305 Marine Crankshaft
Roll-over of crank arm is the major defect of forming quality during the upsetting process. Bending and upsetting forging of crankshaft was simulated by using the rigid-plastic finite element model. The theories of metal flowing and distribution of deformation during the bending and upsetting forging were analyzed, the root cause of the roll-over of crank was found; the optimal combination of the bending and upsetting velocities was obtained; the experimental results agree well with simulations.
Zhengyi Jiang and Chunliang Zhang
M. Jin et al., "Study on Bending and Upsetting Forging 305 Marine Crankshaft ", Advanced Materials Research, Vols. 97-101, pp. 337-343, 2010