Work report of 21-22 weeks

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1、WorkReport1．TheworkthatIhavedoneinthetwoweeks:①SWAPAMX602samplespreparedbytheM6tool(thediameterofthepinis6mm)a.Thehardnesstestofthesamplesthatpreparedataweldspeedof350mm/minand400mm/min(rotationspeed1100rpm,load800kg)abFig.1.HardnessacrossthecrosssectionofFS-weldedjointsofsample

2、sthatpreparedataweldspeedof350mm/minand400mm/minTheresultofthehardnessofthesamplesafterFSWshowedthatthehardnessofthestirzonelowerthatthebasemetal.Infig.1.(b),itcouldfindthatthehardnessoftherightsideofthesamplewashigherthantheleftside.Itmaybecausedbytherightsideplate.Iwilltestthe

3、hardnessofthebasemetaloftherightsideplate.a.Thetensiletestonthesampleswithdifferentparameters.300mm/min250mm/minFig.2.TensilestrengthofAMX602alloysweldedatvarioustravelingspeedswiththeconstantrotationspeedof1100rpm(toolm6)400mm/min350mm/minThetensilestrengthofthejointsafterFSWwa

4、slowerthanthebasemetal.The300mm/minoneshadthehighesttensilestrength.Butthetensilestrengthofthesampleswasnotstable.Itcouldbefoundthatthefracturealwaysoccurredintheadvancesideofthejointsofthesamplesweldedby250mm/minand300mm/min,whileitoccurredinthemiddleofthejointsofthe350mm/minan

5、d400mm/min.②SWAPAMX602samplespreparedbytheM5tool(thediameterofthepinis5mm)materialload(kg)Toolrotationspeed(rpm)Travelingspeed(mm/min)Results1SWAP80011002502SWAP80011003003SWAP80011003504SWAP8001100400Fromtheresults,itcouldbefoundthatthereisnodefectonthejointssurface.a.Thehardne

6、sstestofthesamplesthatpreparedataweldspeedof250mm/minand300mm/min(rotationspeed1100rpm,load800kg)Fig.3.HardnessacrossthecrosssectionofFS-weldedjointsofsamplesthatpreparedataweldspeedof350mm/minand400mm/minItcouldbefoundthatthehardnessofthejointswaslowerthanthebasemetal.a.Thetens

7、iletestonthesampleswithdifferentparameters.300mm/min250mm/minFig.4.TensilestrengthofAMX602alloysweldedatvarioustravelingspeedswiththeconstantrotationspeedof1100rpm(toolm5)350mm/min400mm/minThetensilestrengthofthejointsafterFSWwaslowerthanthebasemetal.The250mm/minand300mm/minones

8、hadthehighesttensilestrength.Butthetensilestren