【摘要】 磨削淬硬技术利用磨削热对工件表层进行表面热处理,磨削热和工件温度场分布均是影响磨削淬硬技术的关键因素,本文基于单颗磨粒对热源产生位置进行了分析,忽略在磨粒与磨屑界面产生的热量,考虑磨屑-工件界面和磨粒-工件界面热源,建立了磨削淬硬热量分配比模型,并利用有限元分析和实验的方法对建立的热量分配比模型进行了验证.更多还原

【Abstract】 Grind-hardening technology utilizes the grinding heat to harden the surface of the workpiece.The grinding temperature field will be formed in the surface layer of the workpiece.Therefore,the heat partition to the workpiece is an importance parameter and affects grind-hardening technology.In this paper,the location of heat sources which produce the around grain is analyzed and the heat sources produced in chip-grain interface is ignored.Based on the heat sources produced in grain-workpiece interface and the chip-workpiece interface,the heat partition model is established.The FEM method and experimental method are employed to validate this heat partition model.The results indicate the heat partition model can be used in grind-hardening temperature calculation.更多还原