Thaum engineers qhia a kev cai alloy machining Hoobkas, lawv tsis yog tsuas yog xaj cov khoom - lawv tau ruaj ntseg ruaj khov nyob rau hauv 350 bar hydraulic siab, tiv thaiv galling nyob rau hauv cobalt-alloy nozzles ntawm 650 ° C, los yog guaranteeing microstructure txuas ntxiv nyob rau hauv ib tug xuab zeb-cam khwb cia twj tso kua mis vaj tse uas yuav khiav 20,000 teev yam tsis ua hauj lwm. Qhov ntawd yog qhov kev ua haujlwm tiag tiag - tsis yog daim ntawv cog lus.
Peb tau pom cov neeg siv khoom nkoj kos duab rau AMS 5387 cobalt alloy twj tso kua mis tsuas yog tau txais cov khoom nrog subsurface porosity tom qab kev kho cua sov. Lwm tus xav tias "CNC machined" txhais tau hais tias "npaj rau nruab" - txog thaum lawv T800 alloy qhov chaw ncej cov menyuam tsis muaj kev vibration kuaj vim tsis tswj cov kev ntxhov siab los ntawm asymmetric milling dhau. Cov no tsis yog rooj plaub ntug. Lawv yog cov txiaj ntsig ncaj qha ntawm kev muaj peev xwm tawg tau: kev ua tiav los ntawm ib lub khw, kev ua haujlwm ntxhib los ntawm lwm tus, ua tiav kev sib tsoo los ntawm ib feem peb - txhua tus nrog cov tswv yim sib txawv, kev tswj xyuas thermal, thiab cov txheej txheem tshuaj xyuas.
Vim li cas kev sib koom ua ke ntsug tsis yog xaiv tau rau kev ua haujlwm siab-alloy precision
Muaj tseeb tswj pib ua ntej thawj nti ya. Ntawm QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., cov ntaub ntawv pov thawj raw khoom tsis yog cov ntaub ntawv-nws yog lub hauv paus. Txhua kauj ntawm T800 cobalt-raws li alloy tuaj txog nrog zeb xeem ntawv ceeb toom traceable rau cov cua sov tooj, tshuaj muaj pes tsawg leeg pov thawj tiv thaiv ASTM E1086, thiab grain loj tau lees paub ntawm ASTM E112. Peb tsis lees txais "tus qauv" chemistry. Peb yuav tsum tau ntawv pov thawj AMS 5387 ua raws-tshwj xeeb tshaj yog rau cov twj tso kua mis tseem ceeb qhov twg chromium variance saum ± 0.3% ua rau ntxov ntxov intergranular corrosion nyob rau hauv qaub roj ib puag ncig.
Txoj kev qhuab qhia no txuas ntxiv los ntawm cov txheej txheem. Xuab zeb casting thiab peev casting tshwm sim ntawm qhov chaw - tsis yog outsourced - yog li peb tswj pwm preheat nqi, solidification gradients, thiab shakeout sij hawm. Qhov sib txawv ntawm 2 ° C hauv pwm kub hloov pauv dendrite caj npab sib nrug los ntawm 12%, cuam tshuam ncaj qha rau kev ua haujlwm thiab qaug zog lub neej hauv piston twj tso kua mis lub tog raj kheej. Peb lub hlwb CNC tom qab ntawd siv cov txheej txheem CMM pov thawj tom qab roughing, semi-tiav, thiab tiav dhau lawm - tsis yog kev kuaj zaum kawg nkaus xwb. Peb ntsuas thermal drift ntawm multi-axis tshuab txhua txhua 90 feeb vim hais tias ib tug 0.008 hli expansion nyob rau hauv lub spindle vaj tse hloov bore concentricity tshaj GD&T kam rau ua zones.
Qhov twg cov txheej txheem machining workflows tawg - thiab qhov ua tau tiag tiag
Qee tus yuav sib cav hais tias txhua lub khw ISO 9001-certified tuaj yeem tuav cobalt-nickel alloys yog tias muab cov cuab yeej zoo. Tab sis kev paub tiag tiag hauv ntiaj teb qhia ib zaj dab neeg sib txawv. Standard carbide inserts tawg tam sim ntawd ntawm AMS 5387 ntawm pub tus nqi siab tshaj 0.05 mm / rev. Peb siv PCD-tipped cov cuab yeej nrog tsis zoo rake geometry, coolant xa ntawm 120 bar los ntawm sab hauv spindle raws, thiab adaptive toolpaths uas tswj cov nti tas li load-txawm nyob ib ncig ntawm 3D contours xws li siab valve lub cev nrog 4.2 hli phab ntsa thicknesses thiab 0.025 hli flatness yuav tsum.
Surface integrity tseem ceeb npaum li geometry. Daim iav-tiav Ra 0.2 µm yuav tsis tiv thaiv kev ntxhov siab corrosion yog tias muaj cov microcracks subsurface los ntawm kev xaiv lub log tsis zoo. Rau stainless hlau castings siv nyob rau hauv offshore twj tso kua mis foundation, peb siv electropolishing * tom qab * txhaj tshuaj peening - tsis ua ntej - los khaws cia compressive residual kev nyuaj siab thaum ua tiav corrosion kuj ib ASTM A967. Cov kab ke no tsis yog theoretical. Nws tau raug lees paub ntawm qhov tseeb ntau lawm, nrog rau ntu ntu SEM tsom xam lees paub tias tsis muaj txheej txheej dawb.
Qhov "kev cai" tiag tiag txhais tau li cas hauv kev siv lub hom phiaj tseem ceeb
Kev cai tsis yog hais txog qhov tsis yog tus qauv ib leeg. Nws yog hais txog kev ua haujlwm sib raug zoo. Thaum ib lub European OEM xav tau winch center ncej chais rau arctic-chav kawm engineering tsheb, lawv tau teev hardness - tab sis tsis suav rau qis-kub qhov toughness. Peb tau khiav Charpy V-notch tests ntawm -40 ° C ntawm peb qhov kev kho cua sov, pom zoo rau lub voj voog hloov pauv, thiab xa cov yob nrog 42 J cuam tshuam lub zog (tsis yog qhov yuav tsum tau 27 J). Qhov kev txiav txim siab ntawd tiv thaiv kev tawg tawg thaum lub sijhawm thauj khoom rov qab los ntawm cov dej khov-cov kwj deg.
Qib no ntawm kev sib koom tes txuas mus rau kev tsim-rau-kev tsim khoom. Peb chij GD&T callouts uas tsis sib haum xeeb nrog lub kaum sab xis casting. Peb simulate thermal distortion nyob rau hauv nyias-walled cobalt alloy nozzles thaum tov annealing. Peb muab cov lus qhia txog kev tsim khoom tsis pub dhau 48 teev - tsis yog lub lis piam - vim tias tus qauv ncua sij hawm cascade rau hauv lub sijhawm ua haujlwm. Peb tus thawj tswj hwm qhov project hais tau ASME Y14.5, tsis yog lus Askiv xwb.
Yog koj xav tau ib kev cai alloy machining Hoobkas uas kho metallurgy li engineering-tsis yog kev yuav khoom-koj tab tom nrhiav kev sib txuas nruj ntawm cov khoom siv science, thermal ua, thiab kev tswj xyuas qhov tseeb. Koj xav tau cov ntaub ntawv traceability los ntawm tus xov tooj cua sov mus rau daim ntawv tshaj tawm kev tshuaj xyuas zaum kawg. Koj xav tau cov neeg koom tes uas tau debugged T800 alloy plug zaum torque nkhaus hla 17 hydraulic system variants. Koj xav tau kev ua pov thawj - tsis yog cov lus hais txog kev muaj peev xwm. Qhov ntawd yog qhov pib qhov twg specification xaus thiab kev ua tau zoo pib.
