Analysis of Influence of Tool Cooling Methods on Cutting Temperature of FGH96 High Temperature Alloy
The finite element model is used to determine the model parameters and mechanical properties of FGH96 high-temperature alloy.Base on the theory of metal cutting heat transfer,an analytical model for tool surface temperature is established.The cutting temperature in the tool contact area is calculated using the cutting heat source,and a temperature cutting method for FGH96 high-temperature alloy using vapor mist cooling is proposed.Three cooling methods,dry casting,annular casting,and vapor mist cooling,are used as experimental research objects to analyze the influence of various cutting variable parameters on the cutting nature of high-temperature alloys.The experimental study research results show that the temperature at the hole wall of annular casting and vapor mist cooling decreases by approximately 48.8%and 109.3%compared to dry cooling methods;The residual stress and cutting force of vapor mist cooling are the smallest;The increase in cutting speed,feed rate,and cutting depth will increase the chip temperature,and the optimal cutting temperature for va-por mist cooling is678.59℃.The influencing factors of chip temperature in descending order are feed rate>cutting speed>cutting depth.The influence parameter variables of high-temperature alloy cutting temperature are obtained,which have a significant impact on cutting temperature and cutting effect.
high temperature alloy materialtool cooling methodsteam mist coolingfinite element modelcooling and heat exchangecutting temperature