47陶瓷结合剂CBN砂轮磨削过程的热特性研究

华侨大学硕士学位论文陶瓷结合剂CBN砂轮磨削过程的热特性研究姓名：杜存记申请学位级别：硕士专业：机械制造及其自动化指导教师：徐西鹏20060101ICBN1CBNCBNCBN2CBNG191.63237.27CBN150.78279.393CBNu=4.45J/mm314.57J/mm3u=5.51J/mm313.66J/mm3u=7.15J/mm323.11J/mm3u=7.74J/mm322.4J/mm3u=5.27J/mm328.13J/mm3u=5.74J/mm327.53J/mm34CBN57%75%23.8%32%41%63%,10.5%14.1%14%21%4.5%9%:CBNIIABSTRACTInthisthesis,experimentalinvestigationshavebeendoneontemperatureandenergypartitionandwheelwearingrindingwithavitrifiedCBNwheel.Themainresultsareasfollows:(1)GrindingtemperaturesweremeasuredandanalysedinsurfacegrindingusingthermocoupletechniquesTheexperimentalresultsindicatedthatlowtemperatureriseobtainedinthesurfaceoftheworkpiecethiswasattributedtotheveryhighthermalconductivityoftheCBNabrasivegrains(2)Thegrindingratiowas191.63to237.27forgrindingHSSandthegrindingratiowas150.78to279.39forgrindinggraniteTheCBNabrasivegrainswereflattenedforgrindinggranitewhilebrokenandpull-outforgrindingHSS(3)ExperimentalinvestigationsofthespecificenergywithavitrifiedCBNwheelwereconductedItisfoundthatthespecificenergyfordrygrindingofHSSwas4.45J/mm3to14.57J/mm3,and5.51J/mm3to13.66J/mm3forwetgrinding.Thespecificenergyfordrygrindingofstainlesssteelwas7.15J/mm3to23.11J/mm3,and7.74J/mm3to22.4J/mm3forwetgrinding.Thespecificenergyfordrygrindingofgranitewas5.27J/mm3to28.13J/mm3,and5.74J/mm3to27.53J/mm3forwetgrinding(4)TheenergypartitiontotheworkpiecewasestimatedusingatemperaturematchingmethodEnergypartitiontotheHSSwas57%75%fordrygrindingand23.8%32%forwetgrinding.Energypartitiontothestainlesssteelwas41%63%fordrygrindingand10.5%14.1%forwetgrinding.Energypartitiontothegranitewas14%21%fordrygrindingand4.5%9%forwetgrindingKeywords:CBN,GrindingTemperature,Wear,SpecificEnergy,EnergyPartition1§1.1CBNCBNCBN1957CBNCBN8%10%15%25%16%25%[1]CBNCBNCBNCBN1967CBN30CBNCBN90CBN198940199780020[2]CBN“”“”CBNCBNCBNCBN1.1.1CBN1CBN[3]2CBN3[4]CBN900CBNCBN,CBNCBN4[4]CBN21.1.2CBNCBNCBN[5]1CBN2CBN1300150045112CBN3CBNCBN4CBN5CBNCBN6CBNCBNCBNCBN§1.2CBNCBNCBN1.2.1CBNCBN[6]20#/24#CBNCBNCBNCBNCBN[7]SGCBN3CBNSG[8]CBN300MCBN300MVS31.4m/sVw14m/minap0.03mm63.4N37.1N,CBN1.2.2CBNCBNSG[9]CBNCBNCBNCBNCBNCBNCBNCBN1.2.3CBNCBNCBNCBNCBNCBN[10]1.2.4CBN2002CBNCBN4[10]2004MalkinCBN120CBN3%8%[11]1995S.KohliC.GuoMalkinCBNCBN20%60%75%CBNCBNCBN[12]1995W.B.RoweS.C.E.BlackB.MillsCBNCBN[13]§1.31.3.1[14]1.3.1.1[15-17]1961253(500K)3ìm5ìm(300K500K)8ìm14ìm1.3.1.2——1234[18][19]6[20]1.3.2()()1-11-11231231231SiC21.3.3Rowe,Black[21]1-2[10]71-21952Outwater1989Lavine1962Hahn1991Morgan1966Makino1993Qi1970DesRuisseaux1994Rowe1971Malkin1995Tonshoff1978Snoey1996Rowe1987Howes1999Guo1988Pettit50OutwaterShaw[22]Hahn[23]Makino2-3,[24]Qi[25]Malkin2/3,[26]DesRuisseauxPeclet[27]Howes,“”,[28]Malkin[29]Malkin6J/mm38PettitLavine[30]Lavine45Morgan[31]Black[33]450500HahnRowe1996[21]Rowe1999GuoRowe[33]60[34][35]1.3.4[19]123459§1.41.4.1[36]60%95%10%1000600/mm1000/mm[37][38]1.4.2CBNCBNCBNCBNCBNCBNCBN[4]CBNCBNCBNCBNCBN10CBNCBNCBNCBNCBN[4]1.4.3560CBN1CBN2CBNCBN3CBN4CBNCBN11§2.11CBNCBN2§2.2CBNCBNCBNCBNCBN§2.3M71152-12-1PGX-3DEWE-2010[19]DEWE-2010nCBNapvwDEWE-2010PC12CBN2-12-1n(rpm)1500vw(mm/s)6090120vs(m/s)19.6ap(ìm)102030(mm)250(mm)20CBN120/140200%mm23.740×28×1430×30×3660×36×30-2-22-32-42-2/%HRCCWMoCrVñcëW18Cr4V650.7~0.817.5~190.33.8~4.41~1.4880046225.1132-3/%HRCCCrNiSiMnñcë0Cr13NiMo30.90.0513.164.850.20.657865460142-4/%ñcë765455026438162.8552-2hh1h1-h2-2§2.4HiroxKH-1000HI-SCOPECBN1000mm32-3HiroxKH-1000HI-SCOPE122-4hh1142-52-5n(rpm)1500vw(mm/s)90vs(m/s)19.6ap(ìm)20(mm)250(mm)20CBN120/140200%mm23.7146.8×11.78×11.96179×14.92×106.32-3CBN152-4CBN16CBN§3.1apvw10000Hz3-13-13-1Dewe3-23-1PC3-212[39-40]3-2èmaxCBN0.000.010.020.030.040.050.060102030405060ΤCBNwheelvw=0.06m/sap=0.003mmθmax123-2CBN17§3.2CBN3.2.1CBN3-13-1èmax()VWmm/sap(mm)0.0033143400.0055259670.0078787860.0031110170.005221619VW=60mm/s0.0072722220.0032238280.0054148520.0076270640.003108120.005171217VW=90mm/s0.0072317210.0031728250.0052735470.0074145610.00388110.00514918VW=120mm/s0.0071914203.2.213-33-4CBN87CBN186090120020406080100120140θap=0.003mm,dryap=0.005mm,dryap=0.007mm,dry0.0020.0040.0060.008020406080100120140θvw=60mm/s,dryvw=90mm/s,dryvw=120mm/s,dry3-33-42609012001020304050θap=0.003mm,wetap=0.005mm,wetap=0.007mm,wet0.0020.0040.0060.00801020304050θvw=60mm/s,wetvw=90mm/s,wetvw=120mm/s,wet3-53-63-53-6CBN2736090120020406080100120140θap=0.003mm,dryap=0.005mm,dryap=0.007mm,dryap=0.003mm,wetap=0.005mm,wetap=0.007mm,wet0.0020.0040.0060.008020406080100120140θvw=60mm/s,dryvw=90mm/s,dryvw=120mm/s,dryvw=60mm/s,wetvw=90mm/s,wetvw=120mm/s,wet3-73-8CBN193-73-868.97%3.2.316090120020406080100120140θap=0.003mm,dryap=0.005mm,dryap=0.007mm,dry0.0020.0040.0060.008020406080100120140θvw=60mm/s,dryvw=90mm/s,dryvw=120mm/s,dry3-93-103-93-10CBN8923-113-12CBN22608010012001020304050θap=0.003mm,wetap=0.005mm,wetap=0.007mm,wet0.0020.0040.0060.00801020304050θvw=60mm/s,wetvw=90mm/s,wetvw=120mm/s,wet3-113-12CBN2033-133-1486.75%6090120020406080100120140θap=0.003mm,dryap=0.005mm,dryap=0.007mm,dryap=0.003mm,wetap=0.005mm,wetap=0.007mm,wet0.0020.0040.0060.008020406080100120140θ