High-temperaturealloysrefertoatypeofmetalmaterialbasedoniron,nickel andcobalt,whichcanworkforalongtimeathightemperaturesabove600°C andundercertainstresses,andhaveexcellentcomprehensiveproperties Accordingtothematrixelements,theycanbemainlydividedintoiron-based high-temperaturealloys,nickel-basedhigh-temperaturealloysand cobalt-basedhigh-temperaturealloys,andaremainlyusedtomanufacture turbineblades,guidebladesandturbinedisksforaviation,shipsandindustrial gasturbines
Asthemostdifficultmaterialtoprocessamongallkindsofdifficult-to-cut materials,high-temperaturealloyshavethefollowingprocessingdifficulties:
(1)Highresistancetoplasticdeformationandsevereworkhardening,resulting inlargecuttingforces,whichare2-3timesgreaterthanthoseofordinarysteel.
(2)Poorthermalconductivity,hightemperatureduringcutting,causingrapid wearoftheinserts.
(3)Chipsadheretothecuttingedgesurfaceoftheinserts,whichisveryeasy toproducebuilt-upedge,affectingthesurfacequalityoftheworkpiecebeing processed
Inviewoftheaboveprocessingdifficulties,HalnnSuperhardprovidesavariety
ofcuttinginsertsofcarbide/ceramic/CBN(cubicboronnitride)tocopewith differentmaterialsandhigh-temperaturealloymaterialsunderdifferent workingconditions
HalnnSuperhardCarbideCuttinginserts:Itadoptsultra-fineparticleswithvery highhardness,andwiththeblessingofspecialnano-levelcoating,ithashigh thermalhardness,andcanmaintaingoodcuttingperformanceandgood insertslifeduringcutting.Atthesametime,thegoodadhesionstrength betweenthecoatingandthesubstraterealizesstablecuttingandavoidsthe groovewearthatiseasytooccurintheprocessingofhigh-temperaturealloys.
Halnnsuper-hardceramiccuttinginserts:whisker-toughenedceramicblades withexcellentchemicalstabilityandtoughness.Theycanadopthighercutting speedsandcuttingdepthstoimproveproductionefficiencyandmetalremoval rateCommongradesincludeS100,S200,SH100,andSH200S100/S200 areusedforfinishingprocesses,andcoatingservicescanalsobeprovided. SH100/SH200areusedforroughingandmillingprocesses
HalnnsuperhardCBN(cubicboronnitride)inserts:Thehardnessissecond onlytodiamondinsertsIthasexcellenthigh-temperatureredhardness,good wearresistanceandfractureresistance.Itcanachievehigh-speedcutting, greatlyimproveproductionefficiency,andmeetexcellentprocessingeffectsAt thesametime,itcanbecustomizedaccordingtocustomerneedsCommon brandsincludeBN-S200,BDN80andothermaterials.
CasestudyofHalnnsuperhardcuttinginsertsprocessinghigh temperaturealloymaterials
(1)CasestudyofHalnnsuperhardcubicboronnitridecuttinginsertsBN-S200 processingnickel-basedhightemperaturealloy
Machiningobjectmaterial:nickel-basedalloyInconel718; Hardnessofprocessednickel-basedalloy:HRC45-HRC47(precipitation hardenednickel-basedalloy);
insertsmaterialbrand:BN-S200roundCBNbladeRGN120400; Processingprocess:finishing; Cuttingspeed:350m/min;
Feedrate:015mm/revperrevolution(underthisparameter,thesurface roughnessofnickel-basedalloyafterfinishingisRa0.3-Ra0.4);
Cuttingdepth(single-sidebackcuttingamount):05mm;
(2)CasestudyofHalnnsuperhardceramicinsertS100gradeprocessing hightemperaturealloy
Processingobjectmaterial:Inconel718; insertsbrand:S100
Processingprocedure:finishing; Cuttingspeed:300m/min;
Feedrate:0.1mm/rperrevolution
Cuttingdepth(single-sidebackcuttingamount):05mm;
Results:Comparedwithacertainbrandofceramicblades,Hualingsuperhard S100haslesswearandbettersurfaceroughness.
S100刀具磨损图 某品牌陶瓷刀片磨损图