层残余应力钢钛刀具磨损英文文献和中文翻译(5)

Toollifeofthecoatingsininterruptedcutof42CrMo4123 154Prod.Eng.Res.Devel.(2016)10:147–155coating groupABCDE25distance fromdistance fromsurface0minsurface015105composition ofthe coatings(material-0composition ofthe coatings(chemical wearresistance)tool life critera:tc = 20 min, VB > 200 µm, tool failure due to chippingdepending)process:tool:external turningCNMG 120412 MSworkpiece: Ti-6Al-4Vinterruptedprocess parameters:vc = 60 m/mindistance fromsurface0high hardnessf = 0.1 mmof the coatings(stable craterlip)cut:ap = 1 mmRi/79926 ©IFWFig.11 ToollifeofthecoatingsininterruptedcutofTi–6Al–4Vcomposition and hardness of the coatings limit the cor-relation of these coating properties with every occurredwear form. Therefore, the coatings were partitioned ingroups with similar composition to identify process-speciﬁc coating systems fordifferent applications. Itwasshown that the near surface and near substrate residualcoating stresses correlate with the wear behavior, butstrongly depend on the type of wear. Depending on thewear form the coating residual stress depth distributionand its level near the surface and near the substrate caninﬂuence tool life signiﬁcantly. The main conclusions ofthis investigation are:compositionsubstratesurface•Decreasing compressive residual stresses from thesurface to the substrate increase the resistance againstﬂank wear in continuous cut. A compressive residualstress state at the surface of the coating of about-1500MPaexhibitsthehighestperformance.Self-lubricating compositions and low compressiveresidual stresses decreasing to the substrate increasetheresistanceagainstﬂankwearincontinuouscuttingofTi–6Al–4V.craterwearflankwearchippingRi/79929 ©IFWFig.12 Inﬂuenceofcoatingpropertiesonwearbehavior•Thepotentialofthecomposition,residualstressesnearcoating surface and residual stresses near the substrate toincreasetheresistanceagainstcraterwear,ﬂankwearandchippingaresummarizedinFig.12.••••Increasing compressive residual stresses from thesurface of the coating to the substrate increase thestabilityofthecraterlipininterruptedcutof42CrMo4.High compressive stresses near the substrate stabilizethe crater lip and thus reduce chipping at the cuttingedge.AcknowledgmentsThe authors would like to thank the GermanResearchFoundationfortheﬁnancialsupportforthisworkwithintheproject ‘‘Applikationsspeziﬁsches Design von PVD-Beschichtungenfu¨r Zerspanwerkzeuge’’(BR2967/5-1).Material-depending oxide or nitride coatings decreasecraterwearsigniﬁcantly,whichisindependentfromtheresidualstressstate.ReferencesInﬂuence of the subordinately considered layer struc-ture on the wear behavior has to be investigated infurtherstudies.1. Rodriguez RJ, Garcia JA, Medrano A et al (2002) Tribologicalbehaviour of hard coatings deposited by arc-evaporation PVD.Vacuum67:559–566123 Prod.Eng.Res.Devel.(2016)10:147–1551552. DenkenaB,BiermannD(2014)Cuttingedgegeometries.CIRPAnnManufTechnol63:631–6533. PostiE,NieminenI(1989)Inﬂuenceofcoatingthicknessonthe17. KhraisSK,LiYJ(2007)Wearmechanismsandtoolperformanceof TiAlN PVD coated inserts during machining of AISI 4140steel.Wear262:64–69lifeof129:273–283TiN-coatedhighspeedsteelcuttingtools.Wear18. Choo SH, Lee S, Golkovski MG (2000) Effects of acceleratedelectron beam irradiation on surface hardening and fatiguepropertiesinanAISI4140steelusedforautomotivecrankshaft.MaterSciEngA293:56–7019. Lu¨tjeringG,WilliamsJC(2007)Titanium.Engineeringmaterialsandprocesses,2ndedn.Springer,Berlin,Heidelberg,NewYork20. Ezugwu EO, Wang ZM (1997) Titanium alloys and theirmachinability—areview.JMaterProcessTechnol68:262–27421. Chang YY, Lai HM (2014) Wear behavior and cutting perfor-mance of CrAlSiN and TiAlSiN hard coatings on cemented4. BouzakisKD,HadjiyiannisS,SkordarisGetal(2004)Theeffectofcoatingthickness,mechanicalstrengthandhardnesspropertieson the milling performance of PVD coated cemented carbideinserts.SurfCoatTechnol177–178:657–6645. DenkenaB,BreidensteinB(2007)Residual stressandcohesivedamageofPVD-coatedcarbidecuttingtools.In:Proceedingsofthe6thinternationalconferenceTHEcoatingsinmanufacturingengineering,Hannover,pp33–426. Denkena B, Breidenstein B, Gerdes L (2008) Residual stressdepthdistributionsinuncoated,PVDcoatedanddecoatedcarbidecuttingtools.In:Proceedingsofthe7thinternationalconferenceTHE coatings in manufacturing engineering, Kallithea-Chalk-idiki,Greece,pp29–337. KlockeF,GorgelsC,StuckenbergA,BouzakisE(2010)Quali-ﬁcation of coatings to predict wear behaviour of micro blastedcuttingtools.KeyEngMater438:23–298. SorokaOB,KlymenkoSA,KopeikinaMY(2010)Evaluationofresidual stresses in PVD-coatings, Part 2. Strength Mater42(4):450–4589. BreidensteinB,DenkenaB(2013)SigniﬁcanceofresidualstressinPVD-coatedcarbidecuttingtools.CIRPAnnManufTechnol62:67–7010. VogliE,TillmannW,Selvadurai-LasslUetal(2011)Inﬂuenceof Ti/TiAlN-multilayer designs on their residual stresses andmechanicalproperties.ApplSurfSci257:8550–855711. TottenGE,HowesMAH,InoueT(2002)Handbookofresidualstress and deformation of steel. ASM International, MaterialsPark,OH12. Sprute T, Tillmann W, Grisales D et al (2014) Inﬂuence ofsubstratepre-treatmentonresidualstressesandtribo-mechanicalproperties of TiAlN-based PVD coatings. Surf Coat Technol260:369–379carbide cutting tools for Ti alloys. Surf Coat Technol259:152–15822. Meixner M, Klaus M, Genzel C (2013) Sin2w-based residualstressgradients analysis by energy-dispersive synchrotondiffractionconstrainedbysmallgaugevolumes.II.Experimentalimplantation.JApplCrystallogr46:619–62723. Nouari M, Molinari A (2005) Experimental veriﬁcation of adiffusion tool wear model using a 42CrMo4 steel with anuncoated cemented tungsten carbide at various cutting speeds.Wear259:1151–115924. Denkena B, Ko¨hler J, Rehe M (2012) Inﬂuence of the honedcuttingedgeontoolwearandsurfaceintegrityinslotmillingof42CrMo4steel.ProcediaCIRP1:190–19525. 层残余应力钢钛刀具磨损英文文献和中文翻译(5):http://www.751com.cn/fanyi/lunwen_67615.html