Finite Element Simulation Study on Equal Channel Angular Extrusion of 304L Stainless Steel
Author of the article:YANG Zhiqiang;QI Huarong;LYU Weiwei;SU Chen
Author's Workplace：Electrical College,Kunming Vocational and Technical College of Industry,Anning 650302,China;School of Material Science and Engineering,Kunming University of Science and Technology,Kunming 650093,China
Key Words：304 stainless steel equal channel angular extrusion finite element simulation tensile curve
Abstract：The finite element simulation of 304 stainless steel was carried out at different temperatures and the extrusion deformation characteristics and the extrusion force and equivalent stress at different temperatures were compared.analysis.It was found that in the above extrusion temperature,the maximum pressing force at 800℃is the lowest at all temperatures,and extrusion at this temperature is advantageous for the mold.When the workpiece temperature is 800℃,the equivalent stress is 267 MPa.At 400℃,the equivalent stress is 224 MPa,and the maximum variation is 43 MPa.The overall equivalent stress of the workpiece is less affected by temperature.After 304 stainless steel is subjected to equal-diameter angular deformation under low temperature conditions,the work hardening is very serious.As the extrusion temperature is further increased,the tensile curve morphology is basically the same.
