简介：Stationaryshoulderfrictionstirlapwelding(SSFSLW)wassuccessfullyusedtoweld6005A-T6aluminumalloyinthispaper.EffectofpinrotatingspeedoncrosssectionmorphologiesandlapshearstrengthoftheSSFSLWjointsweremainlydiscussed.Resultsshowthatjointswithoutflashandshouldermarkscanbeobtainedbythestationaryshoulder.CrosssectionoftheSSFSLWjointpresentsabasin-likemorphologyandlittlematerialloss.Byincreasingtherotatingspeedfrom1000rpmto1600rpm,botheffectivesheetthicknessandlapwidthincrease,whilelapshearfailureloadfirstlydecreasesandthenincreases.Themaximumfailureloadof14.05kNisattainedwhen1000rpmisused.AllSSFSLWjointspresentshearfracturemode.
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