摘要
本文研究了热处理工艺对LD钢制作钢板弹簧中心孔冲头的机械性能和使用寿命的影响规律,结果表明:用LD钢制作钢板弹簧中心孔冲头,经1120℃淬火、540℃高温回火处理后可以获得较好的机械性能;经1140℃淬火后深冷处理再在540℃高温回火,可以获得最佳的综合机械性能,其使用寿命比Cr_(12)MoV钢作钢板弹簧中心孔冲头的寿命分别提高7倍和9倍。
'he effect of heat treatment processes on mechanical properties and service-life of centre hole punch made of LD steel for leaf spring has been studied. The results show that good mechanical properties of centre hole punch made of LD steel for leaf spring can be obtained by quenching from 1120℃ and high temperature tempering at 540℃; optimal comprehensive mechanical properties can be got by quenching from 1140℃, and deeply cooling treatment and high temperature tempering at 540℃. The service-life of centre hole punch made of LD steel is respectively eight times and ten times than that made of Crl2MoV steel.
出处
《湖北汽车工业学院学报》
1995年第2期36-42,共7页
Journal of Hubei University Of Automotive Technology
关键词
LD钢
冲头
钢板弹簧
模具
Mechanical properties
LD steel
punch
