Impact Performance and Wear Resistance of Automotive Flywheel Plates Subjected to Press Forging Forming

In this paper,the effects of initial forging temperature and final forging temperature on the press forging of 1045 steel for the automotive flywheel plate was investigated.The impact performance and wear resistance were tested and analyzed.The results show that when the initial forging temperature is increased from 1 150 ℃ to 1 210 ℃ and the final forging temperature is increased from 790 ℃ to 850 ℃,the impact performance and wear resistance of 1045 steel for the flywheel plate firstly increase and then decrease.The initial forging temperature of 1045 steel for the flywheel plate is preferably 1 180 ℃ and the final forging temperature is preferably 820 ℃. The impact fracture dimples of fly wheel prepared by the optimized process are very few,small and shallow,and the surface wear scratch is small,shallow,almost no skin and pits,indicating the slightest wear.