中国机械工程2016，Vol.27Issue(12)：1579-1584,1590,7.DOI:10.3969/j.issn.1004-132X.2016.12.004
预应力淬硬磨削工件表面层质量试验研究
Experimental Study on Surface Layer Quality of Pre-stressed Grind-hardening Parts
摘要
Abstract
Starting from the anti-fatigue manufacturing and green manufacturing concepts,fusing the principles of pre-stressed grinding and grind-hardening technology,an pre-stressed grind-harden—ing approach integrated with residual stress control,surface quenching and grinding was presented. Based on the pre-stressed grind-hardening test of 45 steel,the residual stress,hardness and roughness of the workpiece grind-hardening layer surface were studied and analyzed.Comparing with the results for the grind-hardening process under the same conditions.the results are as follows:the residual stress status of the pre-stressed grind-hardening workpieces are better than that of grind-hardening specimens,revealing that pre-stressed grind-hardening process has significant effects on the drop of residual stretch stress and increase of residual press stress;the surface hardness of pre-stressed grind-hardening workpiece is almost three times of original hardness,meanwhile,pre-stressed grind-hard—ening workpieces can achieve lower roughness than that of grind-hardening workpieces.Therefore,the fatigue resistance,corrosion resistance and surface integrity of pre-stressed grind-hardening workpiec—es are better than that of the grinding hardening workpieces.关键词
预应力/淬硬磨削/表面层质量/复合加工Key words
pre-stress/grind-hardening/surface layer quality/combined machining分类
矿业与冶金引用本文复制引用
白斌,修世超,张修铭..预应力淬硬磨削工件表面层质量试验研究[J].中国机械工程,2016,27(12):1579-1584,1590,7.基金项目
国家自然科学基金资助项目(51375083) （51375083）
沈阳市科技计划资助项目(F13-316-1－59) （F13-316-1－59）
