摘要
采用外圆磨削方式对40Cr调质钢进行磨削淬硬试验,通过测量试样的金相组织和显微硬度对外圆磨削淬硬的可行性、磨削参数对淬硬效果的影响规律等进行研究。结果表明:40Cr钢外圆磨削淬硬是可行的;试样的表层组织由完全淬硬层、过渡层和基体组成;表面硬度均在690 HV左右,淬硬层深度最高可达1.10 mm;磨削深度对表面硬度无显著影响,但对淬硬层深度具有显著影响,工件速度和砂轮型号对表面硬度及淬硬层深度均无显著影响。
The grind-hardening experiment of 40Cr steel had been carried out on the external grinder and the metallurgical structure and microhardness of the samples were measured and analyzed.The research results showed that the external grind-hardening of 40Cr steel is feasible,the surface layer of the samples consists of hardening layer,transition layer and body,the average surface hardness is 690 HV and the maximum hardness penetration depth reach up to 1.10 mm,the grinding depth has a great effect on the hardness penetration depth but not on the surface hardness,the feeding speed and the types of grinding wheel have no significant impact on the surface hardness and hardness penetration depth.
出处
《制造技术与机床》
CSCD
北大核心
2011年第11期107-110,共4页
Manufacturing Technology & Machine Tool
关键词
40CR钢
磨削淬硬
外圆磨削
淬硬效果
40Cr Steel
Grind-hardening
External Grinding
Hardening Effect
