Lapho onjiniyela bedinga izingxenye zensimbi ezinembayo ezisinda emijikelezweni ye-hydraulic ye-psi engu-30,000 noma ukuchayeka kwegesi ekhiphayo engu-650°C, abaqali nge-generic foundry. Baqala ngo-a imboni yamasevisi e-wax alahlekile ephatha imibhobho ye-cobalt alloy njengezinsimbi zokuhlinza—futhi yazi kahle ukuthi ukwakheka okusanhlamvu kwe-AMS 5387 kusabela kanjani ekushaqekeni okushisayo ngesikhathi sokuncibilika.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. enye imboni enjalo. Hhayi umthengisi. Akuyona inkampani yokuhweba. Ukusebenza ngezandla, okuhambisana ne-ISO e-Qingdao lapho i-metallurgists ilungisa i-viscosity e-slurry ngokusekelwe kumswakama ozungezile-futhi ochwepheshe bemishini baphinda baqanda ama-spindle ama-axis amahlanu ngaphambi kokusika imiphini esekelwe ku-T800 ye-cobalt yezinhlelo zewintshi zasolwandle. Sibone amakhasimende elahlekelwa amasonto amathathu kanye no-$18,000 ekusebenzeni kabusha ngoba umnikezeli wawo wangaphambili weqe ukuqinisekiswa kwe-GD&T yangaphambilini. Kulesi sikhungo, ingozi yobukhulu iyabanjwa ngaphambi kokuba iphethini yokuqala ye-wax iqine.
Inqubo yabo yokukhipha i-wax elahlekile ayikona nje “ukutshala imali.” Isistimu ehlanganiswe ngokuqinile: ukulandeleka kwempahla eluhlaza okuqinisekisiwe → ukwakheka kwegobolondo le-ceramic okulungiselelwe ukunwetshwa kokushisa kwe-alloy ephezulu → amanani erempu ekhishwa ngewaxing elawulwayo → ukuthululwa kwe-vacuum kwama-superalloy ekubekezeleleni okungu-±5°C → ukukhululeka kokucindezeleka kwangemva kokusakazwa okulinganiselwe ku-AMS 2750E standards. Kumavalvu okucindezelayo noma izindlu zesilinda sephampu ye-piston, lokho kusho ukuthi ukuhluka kokuqina kodonga kuhlala ngaphansi kuka-±0.15 mm—ngisho nokusakazwa okungu-420 mm OD okunamashaneli okupholisa angaphakathi. Akukho ukuqagela. Ayikho i-batch-to-batch drift. Yonke indawo yokushisa iphethe imibiko egcwele ye-spectrographic nezitifiketi zokuhlola eziqinile.
Yini ebahlukanisa nezisekelo ezijwayelekile? Amaqiniso amathathu okusebenza:
- Isiyalo se-alloy - hhayi nje ikhono. Aba "bambi" ama-cobalt-nickel alloys. Basebenzisa izindawo zomlilo ezinikelwe ze-AMS 5387, ezineziphambano ezihlukene, izileyidi, nezinqubo zokuphatha i-slag ukuvimbela ukungcoliswa okuphambanayo ngamamaki angenabala. Lapho ikhasimende lithumela umdwebo wepulaki ye-cobalt alloy engajwayelekile enokubekezela okungu-0.05 mm ezimbobeni ezinezintambo eziyisithupha, ithimba alizange licaphune ngokungaboni. Baqhube umhlangano we-wax mbumbulu, ukubekwa kwesango okuqinisekisiwe ngokulingisa ukugeleza, kanye nesikhathi sokushiswa kwamagobolondo—ngaphambi kokugunyaza i-PO.
- Awekho ama-handoffs phakathi kokulingisa kanye nokwenza imishini. Abahlinzeki abaningi bakhipha umsebenzi we-CNC ngemuva kokusakaza. Lapha, unjiniyela wekhwalithi efanayo uyasayina kukho kokubili ukuphela kwendawo esakazwayo (Ra ≤ 3.2 μm) kanye nedatha yokugcina yomshini (i-CMM-iqinisekisiwe yaba ngu-±0.01 mm). Lokho kuqeda amaphutha esitaki lapho uphendula i-flange yesisekelo sephampu futhi ibhoboze ekusetheni okukodwa—okubalulekile kubuqotho bophawu lwe-hydraulic.
- Ukuqwashisa ngemodi yokwehluleka eyakhelwe kuso sonke isinyathelo. Okwenziweni kwensimbi nensimbi engagqwali okusetshenziswa kuzinto zikawoyela negesi, benza ukuhlola kokungena koketshezi *ngemuva* kokudubula kodwa *ngaphambi* komshini—ukubamba i-micro-shrinkage porosity ukugaya okungafihlakala. Uma ingxenye ye-T800 alloy ibonisa ukufakwa kwe-subsurface oxide ngaphansi kwe-ultrasonic scan, iyalahlwa—hhayi “isebenza kabusha.” Ngoba ezinhlelweni ezibucayi zemishini, "okwanele" kwehluleka buthule-futhi kuyinhlekelele.
Abanye bangase baphikise ngokuthi ukwenza isihlabathi kunikeza ukuguqulwa okusheshayo kokusakazwa kwensimbi okukhulu. Kodwa lapho ingxenye iyi-winch center shaft roller esebenza ngaphansi komthwalo we-cyclic torsional, ukwethembeka kwejometri kubaluleke ngaphezu kwesivinini. I-wax elahlekile iletha imimo eseduze nenethi enezindonga ezingenaso okusalungiswa, isusa umshini wesibili ezindaweni ezithwala izinto ezibalulekile. Futhi yebo-kubiza kakhulu kusengaphambili. Kodwa iklayenti elilodwa lehlise isamba sezindleko ivevu ngayinye ngo-22% ngemva kokushintsha: imihlangano embalwa enqatshiwe, ukuvuza kwezindawo ezingenalutho, nokuphila kwesevisi okwandisiwe kusuka ezinyangeni eziyi-14 kuya kwezingu-36+ ezindaweni ezihlala ogwadule.
Lokhu akulona ithiyori. Kuyaphinda. Iphansi labo lokukhiqiza liqhuba izinqubo zokugeleza komsebenzi ezithambile-hhayi njengesiqubulo, kodwa njengokwenza kwansuku zonke. Ama-prototypes athunyelwa ngezinsuku zokusebenza eziyi-12. Ama-oda wevolumu emaphakathi (ama-pcs angu-50–500) abamba amafasitela okulethwa kwezinsuku ezingu-±3—aqinisekiswe ngokubhaliwe. Ukuphathwa kwephrojekthi kuhlanganisa umaka wokudweba wesikhathi sangempela, ukuxazululwa kwezingxabano ze-GD&T, kanye nempendulo yokwenziwa kwezinto phakathi kwamahora angu-48 okuthunyelwa kwe-RFQ. Akukho ukucaphuna kwebhokisi elimnyama. Cha, "Sizokuthola kamuva." Ukuqondanisa nje ubunjiniyela kusukela osukwini lokuqala.
Uma ubheka phambili, ukugxila kuyalola: i-R&D ejulile ibe ukulandelana kwe-hybrid casting-machining kwezindlu zephampu ezinodonga oluncane kakhulu, isitifiketi esinwetshiwe sokugunyazwa kwezinto zebanga le-aerospace, kanye nokuhlanganiswa okuqinile kokuthwebula izithombe ezishisayo ngesikhathi sokudubula kwamagobolondo. Kodwa umnyombo awushintshile—incazelo yabo yeqiniso imboni yamasevisi e-wax alahlekile ayimayelana nemininingwane yemishini. Imayelana nokuba nobunikazi bemiphumela yawo wonke ama-micrometer, konke ukufakwa, wonke umjikelezo wokushisa. Ngoba lapho ingxenye yakho ibamba amalitha angu-5 000 amanzi olwandle—noma ilawula ukugeleza kukaphethiloli enjinini yomoya—imboni oyikhethayo ayinikezi insimbi. Inikeza ukuzethemba.
