Basic-blade-training

PSCompany(PrecisionDiamondDept.)BasicBladeSeminarSeminarStructureBladeelementsCuttingFundamentalsParametersSeminarStructureBladeelementsCuttingFundamentalsParametersBladeelementsBladeGritBondConcentration•typeBladeelementsBladeGritBondConcentration7CONFIDENTIALcopyright1999DiscoCorporation/PSCompanyVer.1.0(11/11/99)CBNdiamondsSuperabrasivesConventionalabrasivesGCWAartificialnaturalcubicboronnitrideGrittype•type•shapeBladeelementsBladeGritBondConcentration9CONFIDENTIALcopyright1999DiscoCorporation/PSCompanyVer.1.0(11/11/99)ArtificialCBN“blocky”“angular”Super-abrasivegritshape•type•shape•gritsizeBladeelementsBladeGritBondConcentration11CONFIDENTIALcopyright1999DiscoCorporation/PSCompanyVer.1.0(11/11/99)#320#120#150#180#220#240#280#1000#360#400#500#600#700#8008/2040/6030/4020/4020/3010/20#12008/16#15005/10#17004/8#20004/6#30002/6#40002/412/25mesh#range(microns)Gritsize•type•shape•gritsizeBladeelementsBladeGritBondConcentration13CONFIDENTIALcopyright1999DiscoCorporation/PSCompanyVer.1.0(11/11/99)Unitindicatingratioofdiamondsinthebladeconcentrationof“100”means25%diamondvolumein1cm3Concentration14CONFIDENTIALcopyright1999DiscoCorporation/PSCompanyVer.1.0(11/11/99)NBC-ZH1050NBC-ZH2050LowconcentrationHighconcentrationConcentration•type•shape•gritsizeBladeelementsBladeGritBondConcentration16CONFIDENTIALcopyright1999DiscoCorporation/PSCompanyVer.1.0(11/11/99)1.resin2.metal3.vitrified4.electroplatedthermosetresinmetalpowdermetalplatingceramicBondtypes17CONFIDENTIALcopyright1999DiscoCorporation/PSCompanyVer.1.0(11/11/99)1.Resinmostcommonisphenolicresinhighelasticityhighcuttingquality(cleancuttingsurface)excellentforcuttingglassorcrystalfragilehigherrateofwearBondtypes18CONFIDENTIALcopyright1999DiscoCorporation/PSCompanyVer.1.0(11/11/99)2.Metalnon-ferrouspowdersuchasCuorSnhighgritholdingstrengthhighcuttingpowerlowerrateofwearexcellentforcuttinghard,brittlematerialsBondtypes19CONFIDENTIALcopyright1999DiscoCorporation/PSCompanyVer.1.0(11/11/99)3.VitrifiedBondtypesvitreousglass,i.e.ceramicrigidnoelasticityhighresistancetoheatroughfinishgrindingapplications20CONFIDENTIALcopyright1999DiscoCorporation/PSCompanyVer.1.0(11/11/99)4.ElectroplatedBondtypesmainmaterialisnickelhighaccuracy,microthinhighgritexposureoutstandingcuttingabilityexcellentforsiliconandothercuttingapplications21CONFIDENTIALcopyright1999DiscoCorporation/PSCompanyVer.1.0(11/11/99)DiscoP,G,KtypebladesDiscoZ,ZHtypebladesDiscoIFtypegrindingwheelsDiscoB,Atypeblades1.resin2.metal3.vitrified4.electroplatedBondtypes•type•shape•gritsizeBladeelementsBladeGritBondConcentration•type•pores/chippockets23CONFIDENTIALcopyright1999DiscoCorporation/PSCompanyVer.1.0(11/11/99)rotationdirectionchippocketbondtailgritChippockets24CONFIDENTIALcopyright1999DiscoCorporation/PSCompanyVer.1.0(11/11/99)poreschippocketsChippockets/pores25CONFIDENTIALcopyright1999DiscoCorporation/PSCompanyVer.1.0(11/11/99)Functions2.Coolingpullingwaterintocutzone1.Cleaningcarryingcuttingswarf(Siparticles)outofcutzoneChippockets/pores•type•shape•gritsizeBladeelementsBladeGritBondConcentration•type•pores/chippocketsSeminarStructureBladeelementsCuttingFundamentalsParameters•cuttingmechanism•self-sharpeningaction•abnormalbladeconditions•gritsizeeffects•concentrationeffects•bondeffectsCuttingfundamentals•cuttingmechanism•self-sharpeningaction•abnormalbladeconditions•gritsizeeffects•concentrationeffects•bondeffectsCuttingfundamentals30CONFIDENTIALcopyright1999DiscoCorporation/PSCompanyVer.1.0(11/11/99)Types1.2.Cuttingmechanism31CONFIDENTIALcopyright1999DiscoCorporation/PSCompanyVer.1.0(11/11/99)砥粒Cuttingbrittlematerialslikeglass,siliconorferriteProducedbyimpulsesgeneratedwhengritimpactswiththematerialgrit1.Fracturing(Cracking)Cuttingmechanism32CONFIDENTIALcopyright1999DiscoCorporation/PSCompanyVer.1.0(11/11/99)Cuttingsoft,viscousmaterialslikeresin,copperandaluminiumMaterialis“scooped”awaybygrit(likeicecream)2.ShearinggritCuttingmechanism•cuttingmechanism•self-sharpeningaction•abnormalbladeconditions•gritsizeeffects•concentrationeffects•bondeffectsCuttingfundamentals34CONFIDENTIALcopyright1999DiscoCorporation/PSCompanyVer.1.0(11/11/99)Types1.2.Self-sharpeningaction35CONFIDENTIALcopyright1999DiscoCorporation/PSCompanyVer.1.0(11/11/99)Self-sharpeningaction1.FracturingSharpedgeformedwhengritisfractured36CONFIDENTIALcopyright1999DiscoCorporation/PSCompanyVer.1.0(11/11/99)Self-sharpeningactionGritispulledoutorbrokenoffandnewgritisexposed2.Wear37CONFIDENTIALcopyright1999DiscoCorporation/PSCompanyVer.1.0(11/11/99)Self-sharpeningactionBladeEdgeshapeisconsistentandremainssharpComparisonofedgeshapetransitionKnifeEdgeshapechangesandbecomesdull38CONFIDENTIALcopyright1999DiscoCorporation/PSCompanyVer.1.0(11/11/99)CuttingqualitydurationcuttingknifebladeComparisonofcuttingqualitySelf-sharpeningaction•cuttingmechanism•self-sharpeningaction•abnormalbladeconditions•gritsizeeffects•concentrationeffects•bondeffectsCuttingfundamentals40CONFIDENTIALcopyright1999DiscoCorporation/PSCompanyVer.1.0(11/11/99)1.2.Abnorm