Impact Performance and Wear Resistance of Automotive Flywheel Plates Subjected to Press Forging Forming
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摘要: 研究始锻温度和终锻温度对汽车飞轮盘1045钢试样冲锻成形的影响,并对其冲击性能和耐磨损性能进行测试和分析,为汽车飞轮盘的工业化生产提供了试验数据。试验结果表明,当始锻温度从1 150℃提高到1 210℃、终锻温度从790℃升高到850℃,汽车飞轮盘1045钢试样的冲击性能和耐磨损性能均先提升后下降。汽车飞轮盘1045钢的始锻温度优选为1 180℃、终锻温度优选为820℃。在此优化工艺下制备的试样的冲击断口韧窝非常少、小而浅,表面磨痕较小、浅,几乎没有起皮和凹坑产生,磨损最为轻微。Abstract: 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.
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