山特维克刀具培训(五).pdf

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1、AChoiceofinsertsChoiceofinsertsTurningB•BasicfactorsA23Partingandgrooving•InsertgeometriesA32C•InsertgradesA39•Insertshape,size,noseradiusA42Threading•CuttingdataeffectontoollifeA48DMillingEDrillingFBoringGToolholdingHormationA22MachinabilityOtherinfAChoiceofinserts–basicfactorsThecomple

2、xworldofmetalcuttingGettingmetalcuttingprocessesrightmeansknowingTurningtheworkpiecematerial,thenchoosingthecorrectinsertBgeometryandgradetosuitthespecificapplication.WorkpiecematerialPartingandgrooving•TheinteractionbetweenanoptimizedinsertCgeometryandgradeforacertainworkpiecemate-riali

3、sthekeytosuccess-fulmachining.Threading•ThesethreemainbasicfactorsmustbecarefullyDconsideredandadaptedforthemachiningopera-tioninquestion.•Theknowledgeandun-MillingderstandinghowtoplaywiththesefactorsisofEvitalimportance.GradeGeometryDrillingFThemachiningstartsatthecuttingedgeBoringGTool

4、holdingHTypicalchipbreakingsequenceswithhighspeedimaging.ormationA23MachinabilityOtherinfAChoiceofinserts–basicfactorsSixmaterialgroupsInthemetalcuttingindustrythereisaThereforeworkpiecematerialshaveTurningnumerosamountofcomponentdesignsbeendividedinto6majorgroupsinBmadefromdifferentmate

5、rials.Eachmate-accordancewiththeISO-standard,whererialhasitsownuniquecharacteristicseachgrouphasuniquepropertiesregard-influencedbythealloyingelements,heatingmachinability.treatment,hardnessetc.Thisstronglyinfluencethechoiceofcuttingtoolgeometry,gradeandcuttingdata.PartingandgroovingCWor

6、kpiecematerialgroupsThreadingSteel•ISOP–SteelisthelargestmaterialPDgroupinthemetalcuttingarea,rangingfromunalloyedtohigh-alloyedmate-rialincludingsteelcastingsandferriticandmartensiticstainlesssteels.Themachinabilityisnormallygood,butdif-Millingfersalotdependingonmaterialhardness,carbonc

7、ontentetc.EDrillingF•ISOM–StainlesssteelsarematerialsStainlessMalloyedwithaminimumof12%chro-steelBoringmium,otheralloysaree.g.nickelandGmolybdenum.Differentconditionssuchasferritic,martensitic,austeniticandaustenitic-ferritic(duplex),makesthefamilylarge.Commonforalltheset