Ukukhiqiza okubekezelela kakhulu akuqali ngohlelo lwe-CNC noma isikhunta sokuphonsa. Kuqala ngesinqumo: ukusebenzelana nemboni yemboni yokwenza imishini enembayo ephatha ukuqina kohlangothi, ukungaguquguquki kwe-metallurgical, nokuthembeka kokusebenza hhayi njengokuhlosiwe—kodwa njengokungaxoxiswana.
Sibone amaphrojekthi amaningi kakhulu esima esigabeni se-prototype—hhayi kusukela ekwakhiweni okunephutha, kodwa kusukela kukhono lenqubo elingafani. Ikhasimende laseJalimane lake lasithumelela umdwebo obuyekeziwe wendlu yephampu ye-cobalt alloy AMS 5387 ngemva kwemizamo emithathu ehlulekile kwenye indawo. Inkinga bekungekona ukukhala kokubekezelela (±0.01 mm kuma-bores abalulekile) noma ukuphela kwendawo (Ra 0.4 µm). Kwakuwukuhlanekezela okushisayo ngesikhathi sokwelashwa kokushisa-okungalawuleki ekugijimeni kwangaphambili, kungabonakali kuze kube sekuhlolweni kokugcina kwe-CMM. Yilapho saqaphela khona: ukubekezelelana okuphezulu akukhona nje ngezinombolo eziqinile. Imayelana nokulawula konke okuguquguqukayo okuhambisa lezo zinombolo.
Ukuhlanganisa Okuqondile Kuwumugqa Wokuqala Wokulawula Ukubekezelelana
Abahlinzeki abaningi bakhipha izinsiza, ukwenza imishini, noma ukuqeda. Lokho kudala izixhumanisi ezintathu ezihlukene—kanye namathuba amathathu okukhukhuleka kwe-microstructural, iphutha lokuhlanganisa kabusha, noma ama-datum angaqondile. Esikhungweni sethu esithobela i-ISO e-Qingdao, ukulingisa i-cobalt-nickel kusuka ekutshalweni kwezimali kuya emshinini onama-axis amaningi ngaphandle kokushiya indawo yokukhiqiza. Sifaka izindlu zesilinda zomshini ngokuqondile endaweni yokusakaza efaniswe nephethini—akukho ukusetha kwesibili, akukho ukushintsha kwedatha. Ezingxenyeni zephampu ye-piston ezidinga ukugxila ngaphansi kuka-0.008 mm yonkana ubude obungu-300 mm, lokho kuqhubeka kunciphisa iphutha elikhulayo ngaphezu kuka-60% uma kuqhathaniswa nokulandelana komthengisi ngesandla.
Lokhu akulona ithiyori. Kwenye iphrojekthi yendawo kawoyela yaseNyakatho Melika, saletha imizimba yamavalvu okucindezela angu-127—wonke angaphakathi kuka-±0.005 mm ububanzi besihlalo, konke kulandeleka ekushiseni okukodwa kwe-T800 alloy eqinisekisiwe. Kanjani? Ngenxa yokuthi ithimba lethu labasunguli lilungisa izinga lokushisa elithelayo ngokusekelwe ekuhlaziyweni kokuncibilika kwesikhathi sangempela, ochwepheshe bethu bemishini basebenzisa ukuhlola okungaphakathi kwenqubo ukuze banxephezele ukuguga kwamathuluzi ngaphambi kokuthi kufike ku-0.002 mm, futhi ilebhu yethu ye-metrology iqinisekisa yonke into ngokuphikisana nezidingo ze-ASME Y14.5 GD&T—hhayi nje ubukhulu begama.
I-Superalloy Expertise Kusho Ukwazi Ukuthi I-Spect Ayisho
I-AMS 5387 ayiyona nje “umshini onzima”. Izinga layo lokuqinisa umsebenzi likhuphuka ngaphezu kuka-350 HB. Ukuphuka kwamathuluzi ajwayelekile e-carbide; ukuphazamiseka kokugeleza kokupholisa kubangela izendlalelo zokusakaza zasendaweni. Ezinye izitolo ziphendula ngokuphakelayo okunensayo kanye nokukhishwa kwesitoko okusindayo—bese uyazibuza ukuthi kungani izingxenye zisonteka ekukhululekeni kwengcindezi.
Asiwaphathi ama-cobalt alloys njengokuhlukile. Siwaphatha njengezinto ezingaguquki zokusebenza. Ilabhulali yethu yamathuluzi ihlanganisa ukubhoboza okunethiphu ye-PCD yezimbobo ze-T800, izigayo zokugcina ezilashwe nge-cryo ukuze kufakwe amapulaki e-AMS 5387, kanye namasu okuqina aguquguqukayo agcina ukulayishwa kwe-chip ngaphakathi kuka-5% kuzo zonke izinhlobo ezihlukene zodonga. Okubaluleke nakakhulu: siqinisekisa wonke amandla okushisa okushisa kanye nosayizi wokusanhlamvu *ngaphambi kokuba* kuqale ukusebenza—hhayi ngemva kwalokho. Ngoba ukuchezuka okungu-2% kokuqukethwe kwe-cobalt kushintsha ukunwetshwa kokushisa ngokwanele ukuphula ukulingana kokuphazamiseka okungu-0.012 mm.
- Izingxenye ze-AMS 5387 ezenziwe ngomshini ukuphindaphinda okungaphansi kwe-0.003 mm ngamaqoqo angama-50-piece
- I-T800 alloy center shaft rollers iyazuza I-Ra 0.25 µm ebusweni bobuqotho ngaphandle kokupholisha ngemuva komshini
- I-cobalt alloy nozzles iyadlula 100% ukuhlolwa kwe-ultrasonic ngenxa ye-porosity yangaphakathi-ngisho naku-12 mm odongeni ubukhulu
Ikhwalithi Ayihlolwa Ngaphakathi-Iyakhiwe Ngaphakathi
Ezinye izimboni zihlola i-athikili yokuqala. Senza ukuhlola kokuqala-*okubalulekile*. Yonke ikhoyili, ibha, noma ingot ifika nemibiko egcwele yokuhlolwa komshini. Sihlola ikhemistri nge-spectroscopy ye-OES, siqinisekisa i-microstructure ngokuhlaziywa kwesigaba esigxilile, nama-gradients okuqina kwemephu kuzo zonke izigaba. Kungani? Ngoba i-billet "eqinisekisiwe" ye-AMS 5387 isengabonisa ukuhlukahluka kokuqina okungu-15% ukusuka phezulu kuya komgogodla—okwanele ukulahla izibikezelo zempilo yamathuluzi futhi ibangele ingcindezi eyinsalela.
I-CMM yethu ayipakiwe egumbini elilawulwa yisimo sezulu. Ihlanganiswe neseli yomshini—ukulinganisa ukuzungeza *phakathi* kwamaphasi amabi nokuqeda. Iziqhathaniso zamehlo zihlola ukunemba komthofu wentambo kumapulaki ahlanganisayo kuyilapho izingxenye zisafudumele, zithwebula ukuziphatha kokufinyeza okushisayo. Ukuhlolwa kokugcina kuhlanganisa ukuhlolwa okusebenzayo: ama-valve okucindezela athola i-1.5 × isilinganiso sokubamba kwe-hydraulic imizuzu engu-30; ama-winch shafts ajikeleza ku-2,200 RPM kumarigi okulinganisa ashukumisayo.
Ukulandeleka akulona ibhokisi likaqhwi. Kuwuchungechunge: inombolo yokushisa ebalulekile → inkatho yokusakaza → inguqulo yohlelo lwe-CNC → i-ID yesisebenzisi → I-ID yombiko we-CMM → indawo yokuthumela. Uma ikhasimende lihlaba umkhosi ukudida kohlangothi, sakha kabusha yonke indlela yenqubo ngaphansi kwamaminithi angu-90—hhayi izinsuku.
Ukuthembeka Kwangempela Kokulethwa Kuqala Ngaphambi Kwe-PO
“Ungakwenza lokhu?” umbuzo wokuqala ongalungile. “Isiphi isici esiyingozi kakhulu—futhi singayisusa kanjani ingozi *ngaphambi* kokusika insimbi?” iyona efanele. Kungakho isibuyekezo sethu sobunjiniyela sifaka ukuqinisekiswa kwe-GD&T, impendulo yokwenziwa kwezigaba zodonga oluncane, kanye nokulingisa ukwelashwa kokushisa kwamajometri ajwayele ukuhlanekezelwa. Simaka izinkinga ezingase zibe khona njengokupholisa asymmetric ezisekelweni zephampu noma ukuchezuka okubangelwa ukugoqa ezindlini zamasilinda amade -ngaphambi kokuthi kukhiqizwe indlela yamathuluzi yokuqala.
Siletha ama-oda evolumu emaphakathi (ama-pcs angu-50–500) emavikini angu-12–18—hhayi ngoba sihamba kancane, kodwa ngoba sicindezela ubungozi, hhayi isikhathi. Ama-Prototypes athunyelwa emavikini angu-4-6 anamaphakheji edatha yokuhlola agcwele. Azikho izimanga. Awekho amalophu okusebenza kabusha. Izingxenye nje ezisebenza ngendlela eshiwo, ngesikhathi, ezimakethe zomhlaba wonke—kusuka kuma-OEM asebenza ngehydraulic e-Wisconsin kuya kwezihlanganisi zephampu zasolwandle e-Singapore.
Konjiniyela abacacisa izingxenye lapho u-±0.005 mm esho umehluko phakathi kobuqotho be-seal kanye nokwehluleka okuyinhlekelele, ukusebenzisana nemboni yemboni yokwenza imishini enembile kusho ukukhetha ukulawula phezu kokonakala. Kusho ukuthemba ukuthi ingxubevange ye-cobalt ayigcini nje ngomshini-ihlakaniphile. Lokho kubekezelela akusukelwa—kwakhelwe ngaphakathi. Ukuthi ingxenye ngayinye ixoxa indaba efanayo: isiqiniseko sobukhulu, ukwethembeka kwezinto ezibonakalayo, ukulungela ukusebenza.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. isebenza kuleyo mpambana-mgwaqo—lapho ubunkimbinkimbi be-superalloy buhlangana nokunemba kwesikali sezimboni. Umsebenzi wabo ufakazela ukuthi ukukhiqiza okubekezelela kakhulu akuchazwa ngama-specs wemishini kuphela. Kuchazwa yilokho okwenzekayo phakathi kwesitifiketi sempahla eluhlaza kanye nombiko wokugcina wokuhlola. Futhi yilapho ukwethembeka kwangempela kuqala khona.
