汽雾冷却下切削GH4169切削温度仿真与试验分析  

Simulation and Experimental Analysis of Cutting Temperature in Cutting of Superalloy GH4169 under Spray

作　　者：冯新敏[1] 董庆尚 胡景姝[1] 王柏惠 FENG Xinmin;DONG Qingshang;HU Jingshu;WANG Baihui(School of Mechanical and Power Engineering,Harbin University of Science and Technology,Harbin 150080,China)

机构地区：[1]哈尔滨理工大学机械动力工程学院,哈尔滨150080

出　　处：《机械科学与技术》2022年第7期985-991,共7页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(51675144)。

摘　　要：为了研究汽雾冷却下切削GH4169的冷却效果,本文对汽雾冷却条件下切削GH4169的切削温度进行了试验和仿真分析。首先使用热电偶测温并采用导热反求法将热电偶测得的温度转化为实际的切削温度,分析干切削和汽雾冷却下切削温度的变化情况。其次建立了汽雾冷却仿真模型,设置与试验相同的切削参数进行仿真计算,分析不同汽雾参数对切削温度的影响及产生这一影响的原因。分析得出汽雾冷却能够明显的降低切削温度;切削温度随着压力参数的增大下降明显,随着流量参数的增大无明显的变化。In order to study the cooling effect in the cutting of superalloy GH4169 with spray cooling,the cutting temperature in the cutting of superalloy GH4169 under the condition of spray cooling is experimentally and simulated.Firstly,the thermocouple is used to measure the temperature,and the reverse heat conduction method is used to convert the temperature measured by thermocouple into the actual cutting temperature to analyze the cutting temperature under dry cutting and spray cooling.Secondly,a simulation model for spray cooling was established,and the influence of the spray cooling parameters on the cutting temperature and the influencing reasons were analyzed under the same cutting parameters as the experiment.It is found that the spray cooling can significantly reduce the cutting temperature;the cutting temperature decreases with the increase of pressure,and has no obvious change with the increase of flow.

关 键 词：汽雾冷却 切削温度 GH4169 有限元仿真 

分 类 号：TG501.5[金属学及工艺—金属切削加工及机床]