6082鋁合金高速攪拌摩擦焊溫度場的數(shù)值模擬
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中圖分類號(hào)：TG453.9 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：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
攪拌摩擦焊（frictionstirwelding，F(xiàn)SW）是英國焊接研究所在1991年發(fā)明的一種新型固相焊接技術(shù)[1]。（剩余6411字）