Investigation of Mechanical Property and Springback Behavior with Hot Stamping RCP Process
With the current development of hot stamping technology, quality products have been striving for not only uniformity in hardness but also a minimum of springback.Considering the fact that the uniformity distribution of hardness and the randomness distribution of the springback are inevitable in hot stamping process due to many complex factors such as contact sequence, contact clearance, scale and initial stamping temperature, a new method named RCP method was proposed to improve the hardness and springback of hot stamping product in this paper.The cooling rate control before stamping is applied based on CCT curves through a rapid air cooling device which can provide cooling rate of 60 ℃/s.Three parameters included initial stamping temperature,contacting pressure and dwelling time have been investigated in this paper.According to the experiment results, the hardness deviation is markedly decreased and the springback can be controlled within the threshold value ± 0.5mm.
hot stamping mechanical property spring-back RCP
Bin He Liang Ying Yang Yu Xi Zhao Ping Hu
School of Automotive Engineering,Faculty of Vehicle Engineering and Mechanics,State Key Laboratory o School of Automotive Engineering,Faculty of Vehicle Engineering and Mechanics,State Key Laboratory o
国际会议
2014 International Conference on Hot Stamping of UHSS(2014高强度钢热冲压成形国际会议)
重庆
英文
193-196
2014-08-21(万方平台首次上网日期,不代表论文的发表时间)