Research on Temperature Measurement Experimental Scheme in Minimal Quantities of Lubricant Grinding for High Hardness and Difficult Machining Materials
With the requirements of high-end equipment manufacturing for the application of high-hard and difficult-to-process materials and the precision level improvement of key core parts,the application of minimal quantities of lubricant(MQL)grinding technology is more and more widespread.However,the high grinding zone temperature caused by high grinding specific energy is an important factor that restricts the machining quali-ty and accuracy of the workpiece.Therefore,the research of temperature field analysis and temperature measure-ment in grinding zone has attracted much attention,especially the development and application of new high hard materials and new green processing technology.In this paper,based on the theoretical analysis of the tempera-ture distribution law in the grinding zone,the grinding temperature measurement technology and method are combed,and the grinding semi-artificial thermocouple temperature measuring device suitable for MQL grinding of high hard and difficult materials is optimized.The optimization scheme of electric discharge machining for mi-crohole,wire insertion and insulation coating is proposed to solve the problems of the original device.Such as the insulation mica sheet is easy to break,the thickness of the thermocouple joint is difficult to control,and the structural damage of the experimental workpiece changes the heat conduction.
High hardness and difficult machining materialsMinimal quantities of lubricant grindingGrind-ing temperature measurement
NETL
NSTL
万方数据
