Research on active control of grinding heat field distribution based on electromagnetic induction heating
DING Zishan
ZHOU Han
PAN Xixia
YAO Weihong
HUANG Chuangui
HUANG Xinyi
Abstract：[Objective]To address the challenge of precisely controlling residual stress induced by the coupling of mechanical and thermal stresses during grinding of 17-4PH alloy steel,an electromagnetic induction heating-assisted grinding method was proposed,aiming to provide a reference for effective residual stress distribution control.[Methods]Firstly,based on the coupling effect of heat conduction and convection,an analytical method of implanted heat source is established to reveal the thermal field generation mechanism during induction heating.Secondly,through integral calculation of spatial magnetic field and workpiece heat flux,a numerical simulation model characterizing the dynamic action of the electromagnetic heat source is constructed to solve the electro-thermal coupling problem.Then,considering the skin effect and temperature-dependent material properties,an analytical model for rapid prediction of induction heating temperature field is developed.Finally,induction heating-assisted grinding experiments are conducted to verify the regulation effect of this process on residual stress.[Results]Test results show that the optimized induction heating process reduces the residual stress gradient in the ground surface layer by 40%,and the error between the temperature predicted by the analytical model and the experimental value is less than 16%.This method achieves active control of the grinding thermal field and provides a feasible technical approach for reducing surface thermal damage and improving residual stress distribution.
Keywords：Induction heatingElectromagnetic-thermal couplingMathematical modelResidual stress17-4PH stainless steel
Publication Date：2026-04-30
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：14( 1-14 )