Evolution of undeformed chip thickness and grinding forces in grinding of K4002 nickel-based superalloy using corundum abrasive wheels  

作　　者：Yang CAO Biao ZHAO Wenfeng DING Xiaofeng JIA Bangfu WU Fei LIU Yanfang ZHU Qi LIU Dongdong XU 

机构地区：[1]Jiangsu Key Laboratory of Precision and Micro-Manufacturing Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China [2]School of Mechanical Engineering,Anyang Institute of Technology,Anyang 455000,China [3]Centre for Precision Manufacturing,University of Strathclyde,Glasgow G11XJ,UK [4]School of Mechanical Engineering,Tongji University,Shanghai 200240,China

出　　处：《Chinese Journal of Aeronautics》2025年第1期131-146,共16页中国航空学报(英文版)

基　　金：financially supported by the National Natural Science Foundation of China(Nos.92160301,92060203,52175415 and 52205475);the Science Center for Gas Turbine Project(Nos.P2022-AB-Ⅳ-002-001 and P2023-B-Ⅳ-003-001);the Jiangsu Key Laboratory of Precision and Micro-Manufacturing Technology(No.JSKL2223K01);the Natural Science Foundation of Jiangsu Province(No.BK20210295);the Superior Postdoctoral Project of Jiangsu Province(No.2022ZB215);the Henan Science and Technology Public Relations Project(No.212102210445).

摘　　要：The undeformed chip thickness and grinding force are key parameters for revealing the material removal mechanism in the grinding process.However,they are difficult to be well expressed due to the ununiformed protrusion height and random position distribution of abrasive grains on the abrasive wheel surface.This study investigated the distribution of undeformed chip thickness and grinding force considering the non-uniform characteristics of abrasive wheel in the grinding of K4002 nickel-based superalloy.First,a novel grinding force model was established through a kinematic-geometric analysis and a grain-workpiece contact analysis.Then,a series of grinding experiments were conducted for verifying the model.The results indicate that the distribution of undeformed chip thickness is highly consistent with the Gaussian distribution formula.The increase in the grinding depth mainly leads to an increase in the average value of Gaussian distribution.On the contrary,the increase in the workpiece infeed speed or the decrease in the grinding speed mainly increases the standard deviation of Gaussian distribution.The average and maximum errors of the grinding force model are 4.9%and 14.6%respectively,indicating that the model is of high predication accuracy.

关 键 词：K4002 nickel-based superalloy Grinding force Material removal mechanism Undeformed chip thickness Quantity of active abrasive grains 

分 类 号：TG580.6[金属学及工艺—金属切削加工及机床] V252[一般工业技术—材料科学与工程] V261.25[航空宇航科学与技术—航空宇航制造工程]