Thermomechanical coupling effect on characteristics of oxide film during ultrasonic vibration-assisted ELID grinding ZTA ceramics

作     者：Fan CHEN Guangxi LI Bo ZHAO Wenbo BIE Fan CHEN;Guangxi LI;Bo ZHAO;Wenbo BIE

作者机构：School of Electrical and Mechanical EngineeringPingdingshan UniversityPingdingshan 467000China School of Mechanical and Power EngineeringHenan Polytechnic UniversityJiaozuo 454003China 

出 版 物：《Chinese Journal of Aeronautics》 (中国航空学报（英文版）)

年 卷 期：2021年第34卷第6期

页      面：125-140页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：the National Natural Science Foundation of China(No.51805284) the Key Scientific Research Projects of Colleges and Universities in Henan Province of China(No.19A460006) PhD Research Startup Fund Project of Pingdingshan University of China(No.PXY-BSQD-2018013) 

主　　题：Oxide film Surface quality Thermomechanical loading Ultrasonic vibration-assisted ELID grinding ZTA ceramics 

摘      要：Ultrasonic vibration-assisted ELID(UVA-ELID)grinding is utilized as a novel and highly efficient processing method for hard and brittle materials such as *** this study,the UVA-ELID grinding ZTA ceramics is employed to investigate the influence of thermomechanical loading on the characteristics of oxide *** on the fracture mechanics of material,the model of internal stress for oxide film damage is *** thermomechanical loading is composed of mechanical force and the thermal stress generating from grinding *** theoretical model is established for the mechanical force,thermal stress and internal stress *** the finite element analysis method is used to simulate the theoretical *** mechanical force and grinding temperature is measured during the actual grinding *** the grinding process,the effect of grinding wheel speed and grinding depth on the thermomechanical force and the characteristics of oxide film is *** with the conventional ELID(CELID)grinding,the mechanical force decreased by 25.6%and 22.4%with the increase of grinding wheel speed and grinding depth respectively,and the grinding temperature declined by 10.7%and12.8%during the UVA-ELID *** thermal stress in the latter decreased by 16.3%and20.8%respectively,and internal stress reduced by 12.3%and 15.6%.It was experimentally found that the topographies of oxide layer on the surface of the wheel and the machined surface in the latter was better than that in the *** results indicate that the action of ultrasonic vibration establish a significant effect on the ***,it should be well considered for future reference when processing the ZTA ceramics.