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1、钳工基本技能培训资料（Fitterbasicskillstrainingmaterials）FitterbasicskillstrainingmaterialsThefirstfilecut,chipping,scrapingandsawingFirst,filecutting(grasptheory,practicalskills)(1)briefintroductionThemachiningofaworkpiecesurfacewithafile,sothattheworkpiecetoachievethereq
2、uiredsizeshapeandsurfaceroughness.The1.fileishighcarbontoolsteelT13orT12justmadeandafterheattreatment;Thefileisdividedinto2.files,specialfiles,assortedfile,diamondfile;3.fileselection:dependsonthesizeofthemachiningallowance,machiningprecision,surfaceroughnessand
3、thicknessoftheworkpiecematerial,aknifeissuitableforfilingofmachiningallowance,surfaceroughness,lowprocessingprecisionrequirementoftheworkpiece,finefilefilingistheopposite;softmaterial,generallyusedrasp.Hardmaterials,selectionoffinediamondfilesorfile.(two)themeth
4、odoffiling1.forwardfile:itisamethodoffilingalongthesamedirectionoftheworkpiececanbeobtainedafterthefiling,filemarksofintegrity,isneatandbeautiful,suitableforthesmoothandfilingofsmallsurface;2.crossfilingthatitisfilingtheworkpiecefromtwocrossdirection,whenthefile
5、filingofcontactwiththeworkpiecesurfaceisincreased,easytomasterfilesmoothly,canjudgethefilefromfilemarksonthesurfacelevel,easytosmoothplane;3.pushfile:itisacrossholdingthehandsofsymmetricalfile,alongthelengthdirectionoffilingwiththethumbtopushthefile,thismethodis
6、suitableforfilingandcorrectionfornarrowplanesize;Filing4.outerarc:movingforwardatthesametimeinthefile,shouldalsobearoundthecenterofthecirculararcworkpieceswing.Two,sawing(Masteringtheory,practicalskills)(1)briefintroductionAmethodforcuttingorgroovingmaterialsorw
7、orkwithasawbow.1.sawbowiscomposedofcoarsetooth(serration)sawblade,thelengthofsawbladeisgenerally300mm;2.sawthethicknessshouldbebasedonthehardnessofthematerialprocessingandsawingsectionsize,coarserackgrooveislarge,suitableforcuttingsoftmaterialandsawlargesection,
8、becauseeachsawamoreiron,notpronetocloggingofthecuttingefficiency,finetoothsawbladeforcuttinghardmaterial;3.becauseofhardmaterialisnoteasytocut,eachsawarelativelysmall
