6082铝合金高速搅拌摩擦焊温度场的数值模拟

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中图分类号：TG453.9 文献标志码：A 文章编号：1671-5276（2025）03-0116-05

Numerical Simulation of Temperature Field in High-speed Friction Stir Welding of 6082 Aluminum Alloy

SHI Yuji， WU Kai

（School of Mechanical Engineering，Nanjing Universityof Scienceand Technology，Nanjing 21Oo94，China）

Abstract：BasedontheCoupledEulerian-Lagrangianmethod，athree-dimensionalfullythermodynamicallycoupledfinite elementmodelof high-speedfrictionstirweldingof6O82aluminumaloywasestablished，andtheresultswerecomparedwith thevaluesobtainedfromthetesttoverifytheaccuracyof themodel.Thetemperaturefeldofthe welding processwasstudied by numericalsimulation，andtheinfluencelawofthestirring toolrotationspeedandwelding spedonthetemperaturefieldwas analyzed.Theresultsshowthat thetemperaturefielddistributioninthestableweldingstageofhigh-speedfrictionstir welding presentsanasymmetric situation，with thetemperatureon the forwardside being higherthanthatonthe backward side，the temperaturebehindthestiring tolbeinghigherthanthatahead，andthetemperatureontheshaftshoulderandthebottom surfaceofthepinbeing higherthanthatonthesideof thepin.Asthestiring toolrotationspeed increases，the temperatureof the whole processof high-speed stirfriction welding increases；the welding speed increases，the inserting and preheating stage remainsunchanged，and the temperature of the stable welding stage decreases.

Keywords：high-speed friction stir welding；6O82 aluminum alloy；temperature field；numerical simulation

0 引言

搅拌摩擦焊（frictionstirwelding，FSW）是英国焊接研究所在1991年发明的一种新型固相焊接技术[1]。（剩余6411字）