Determination of heat generation by correlating the interfacial friction stress with temperature in friction stir welding

被引：54

作者：

Sun, Z. ^{[1
]}

Wu, C. S. ^{[1
]}

Kumar, S. ^{[1
]}

机构：

[1] Shandong Univ, Inst Mat Joining, MOE Key Lab Liquid Solid Struct Evolut & Mat Proc, Jinan 250061, Shandong, Peoples R China

来源：

JOURNAL OF MANUFACTURING PROCESSES | 2018年 / 31卷

基金：

中国国家自然科学基金;

关键词：

Friction stir welding; Interfacial friction stress; Heat generation; Plastic material flow; CFD model; ALUMINUM-ALLOYS; MATERIAL FLOW; THERMOMECHANICAL MODEL; TOOL; PREDICTION; EXTRUSION; TORQUE; STEEL;

D O I：

10.1016/j.jmapro.2018.01.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A three-dimensional computational fluid dynamics (CFD) model is established to analyze the interfacial friction stress and the associated heat flux at the tool-workpiece interface in friction stir welding. A novel method is proposed to calculate the interfacial friction stress directly based on the yield criterion, without any need to determine the friction factor first. The interfacial friction stress is described as a function of temperature. The variations of interfacial friction stress, heat generation, temperature field, and material flow are numerically simulated. The predicted thermal cycle and geometry of thermo-mechanically affected zone are in good agreement with the experimentally measured ones. (C) 2018 The Society of Manufacturing Engineers. Published by Elsevier Ltd. All rights reserved.

引用

页码：801 / 811

页数：11

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