不同处理状态的GCr15钢球应力分布分析  

Analysis on Stress Distribution for Steel Balls Made of GCr15 Under Different Treatment States

作　　者：刘传铭[1] 杨建虹[2] 雷建中[1] 王浩[1] 郭浩[1] 

机构地区：[1]洛阳轴研科技股份有限公司,河南洛阳471039 [2]万向集团技术中心,杭州311200

出　　处：《轴承》2015年第6期24-26,共3页Bearing

摘　　要：对不同热处理工艺条件下的钢球,以及未经过和经过表面喷丸强化加工的成品钢球的应力分布状态进行了测试。结果表明:热处理后,钢球的应力分布状态与热处理炉内的碳势和基体碳含量的差值有关;未经过强化工艺的钢球表面有较高的压应力,经过强化工艺的钢球次表面出现强化峰值,有利于提高钢球寿命。The stress distribution state is tested for steel balls under different heat treatment conditions and finished steel balls before and after surface shot peening strengthening process.The results show that the stress distribution state of steel balls is related to difference value between carbon potential in heat treatment furnace and carbon content in ma-trix after heat treatment.The surface of steel balls have higher compressive stress before strengthening process,and strengthening peak value appear in the subsurface of steel balls after strengthening process,which is helpful to improve life of steel balls.

关 键 词：钢球 喷丸强化 应力分布 

分 类 号：TH133.331[机械工程—机械制造及自动化] TG115.22[金属学及工艺—物理冶金]