Uma i-valve yakho ye-hydraulic ihluleka ku-3,000 psi-noma i-cobalt-alloy pump housing cracks ngaphansi kokuhamba ngebhayisikili eshisayo-awudingi umshini "okwanele". Udinga ukuqina kohlangothi phakathi kuka-±0.005 mm, ubuqotho besakhiwo se-microstructure kuwo wonke ama-AMS 5387 aphethwe ngokushisa, kanye nokungabekezeleli iqanda kwezikhala zokulandeleka kokubalulekile. Kungakho onjiniyela baseNyakatho Melika, eJalimane, naseSingapore becacisa izingxenye ezivela ku- ukunemba okuphezulu kwemboni yemishini ye-CNC engaphathi i-GD&T njengephepha—kodwa njengefiziksi okungaxoxiswana ngayo.
Ukunemba komhlaba wangempela kuqala lapho ukubekezelelana kuyeka ukuba ithiyori
Sikubone kabili kulo nyaka: umphakeli wemishini yenkundla kawoyela ye-Tier-1 wenqabe u-47% wezindlu ze-prototype piston pump cylinder ezivela kubathengisi abathathu abahlukene-hhayi ukuze baqedele phezulu, kodwa ngenxa yokuthi ukugxila kwe-bore kukhukhulekile kudlule u-0.012 mm ngemva kokwelashwa kokushisa okudambisa ingcindezi. Imbangela? Ukuphonswa kwesakhiwo sokusanhlamvu okungahambisani nokusebenza kwe-CNC. Kwa-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., sixazulula lokhu phezulu nomfula. Indawo yethu yokusakazwa kwesihlabathi ilawula izilinganiso zokuqinisa insimbi nensimbi engagqwali kusetshenziswa imephu yesikhathi sangempela se-thermocouple—bese iqinisekisa yonke i-billet engenayo ngokuhlaziywa kwe-spectrographic ngaphambi kokuthi kuqale ukukhanda. Akukho ukucabanga. Akukho okuhlukile kwenqwaba.
Lokhu kuhlanganiswa okuqondile—ukusakaza, i-CNC ye-multi-axis, ukwelashwa kokushisa, nokuqedwa kwengaphezulu ngaphansi kophahla olulodwa oluthobela i-ISO—kusho ukuthi siphethe ukubekezelelana kwejiyomethri *ngokusebenzisa* uchungechunge lwenqubo olugcwele. Umzimba we-valve yokucindezela awugcini nje umshini wokudweba; ukuncipha kwayo kokuphonswa kwayo kuyamodela, ukuhlanekezela kwayo ngemuva komshini kukalwa ku-Zeiss CMM, futhi ubulukhuni bayo bokugcina buqinisekiswa ngokumelene ne-ASTM E18. Siletha izingxenye ezisindayo—hhayi nje ezidlulayo—ukuhlolwa kwengcindezi yokuqala.
Ama-Superalloy “awanzima ukuwenza umshini.” Abaphathwanga kahle
Abanye abahlinzeki baphatha ama-cobalt-nickel alloys njengensimbi eqinile. Abekho. Izingxenye ezisekelwe ku-T800 zidinga amasu endlela yamathuluzi anciphisa ukunqwabelana kokushisa—hhayi nje okuphakelayo okunolaka. Sisebenzisa ukugaya okuphakelayo okuphezulu okunama-PCD-tipped cutters kumabhomu e-AMS 5387, sigcina ubuqotho obungaphezulu bungaphansi kuka-Ra 0.4 µm kuyilapho sibambe ukujiya kodonga kufika ku-±0.008 mm. Kungani lokhu kubalulekile? Ngenxa yokuthi ukuhluka okungu-0.015-mm kupulaki ye-cobalt alloy kushintsha i-flow coefficient ngo-11% kumasekhethi we-hydraulic anengcindezi ephezulu—futhi lokho kuyalinganiseka ekuhlulekeni kwenkambu.
Isitezi sesitolo sethu sinemishini yochungechunge lwe-DMG MORI NT ene-axis emihlanu enokuhlola okudidiyelwe, kodwa umehluko wangempela ukuqondisa ngensimbi. Sihlanganisa imijikelezo yokwelapha ukushisa nabahlinzeki bezinto zokusetshenziswa abaqinisekisiwe—siqinisekisa ukuthi yonke inqwaba ye-AMS 5387 ifinyelela amandla okubamba (≥1,380 MPa) nokwelula (≥12%) *ngaphambi kokuthi* ukusika kuqale. Lapho ikhasimende lisicela ukuthi siphindaphinde i-T800 alloy center shaft roller enqanyuliwe yohlelo lwewintshi yemoto yobunjiniyela, sahlehlisa i-microstructure yasekuqaleni ngokuhlaziywa kwe-SEM/EDS—hhayi nje ubukhulu obukopishiwe. Ingxenye ihambe ngo-32% isikhathi eside kusevisi kunokungena esikhundleni se-OEM.
Ukuthembeka akuthenjiswa. Yakhelwe kumaphrothokholi wokuhlola
“Ukulandeleka okugcwele” kusho inombolo engaphezu kweningi egxivizwe ebhokisini. Kuyo yonke ingxenye ebalulekile—amavalvu okucindezela, isisekelo sephampu, izindlu zamasilinda—sibhala: imibiko yokuhlola impahla eluhlaza, imiphumela ye-X-ray, omazisi benguqulo yohlelo lwe-CNC, amafayela okulinganisa e-CMM, amashadi okushisa okushisa, namanothi okugcina okubuka. Yonke idatha igcinwa iminyaka eyi-10. Amakhasimende afinyelela umlando wawo wephrojekthi esebenzisa ingosi evikelekile—hhayi ama-PDF athunyelwe nge-imeyili phakathi kwamabili.
Kodwa ukuqinisekiswa kwenzeka *ngesikhathi* sokukhiqiza—hhayi ekugcineni kuphela. Ama-opharetha enza ukuhlola okungaphakathi kwenqubo esebenzisa iziqhathanisi zokubona ezicini ezifana ne-nozzle orifice geometry. Yonke ingxenye yesithathu idlula ekuhlolweni okugcwele kwe-CMM iqhathaniswa nefayela lokuqala elithi STEP—hhayi nje ubukhulu obuyinhloko. Futhi yebo—siqinisekisa ama-callouts e-GD&T njengendawo, iphrofayela, kanye nokuphumayo *kumongo*, hhayi njengezici ezingazodwa. Uma umdwebo wakho ucacisa ukubekezelela indawo okuhlanganisiwe kobuso be-flange ngokuhlobene ne-axis ebhobozayo, sikukala ngaleyo ndlela—sisebenzisa izifanisi ze-datum eziphindaphinda izimo zangempela zomhlangano.
Umugqa wakho wesikhathi akufanele uncike ekuhleleni umthamo womphakeli
Ama-oda evolumu emaphakathi (ama-pcs angu-50–500) ngokuvamile ahlala ezimbonini ezilungiselelwe ama-prototypes noma ukukhiqizwa ngobuningi. Sakhe ukugeleza komsebenzi wethu endaweni emaphakathi: izakhiwo zamaseli athambile, ukulungiswa okujwayelekile kwemindeni yezingxenye zephampu, nesitoko se-buffer se-cobalt evamile namabanga angenasici. Lapho i-OEM yephampu yaseYurophu idinga izingxenye zephampu ze-AMS 5387 ezingu-120 ezinsukwini ezingu-18—ngemuva kokuba umthengisi wazo wangaphambili ephuthe umnqamulajuqu ngezinsuku ezingu-37—sasiletha ngosuku lwe-17. Hhayi ngezimpelasonto zokusebenza. Ngokususa ama-loops okusebenza kabusha: i-porosity yokusakaza ibanjwe ngaphambili komshini, ukuguga kwamathuluzi kugadwa ngesikhathi sangempela, nokuhlolwa kokugcina kuqedwe ngaphambi kokupakishwa.
Lokho kwethembeka kudlulela ekusekelweni konjiniyela. Asimane nje sicaphune imidwebo—sihlaba umkhosi izingozi zokwenziwa *ngaphambi* kokucaphuna: “Lolu donga oluyi-0.3-mm ku-valve yezindlu luzochezuka ngesikhathi sokubopha; siphakamisa ukuthi kwengezwe izimbambo zesikhashana.” Noma: “Ukuqedwa okucacisiwe kwe-Ra 0.2 µm kudinga ukupholishwa ngogesi—hhayi ukugaya—okwengeza izinsuku ezingu-3 kodwa kuvimbela ukuqaliswa kokuqhekeka okuncane.” Azikho izimanga. Izinqumo nje ezisekelwe eminyakeni eyi-12 yokukhiqiza izingxenye zezimboni ezinengxubevange ephezulu.
Ezingxenyeni zensimbi ezibalulekile—lapho ukwehluleka kusho isikhathi sokuphumula, ubungozi bokuphepha, noma izimangalo zewaranti—ukunemba akulona ibhokisi lokuhlola leshidi elithile. Kuyindlela olawula ngayo ukwakheka kokusanhlamvu, uphatha ukuhlanekezela okushisayo, futhi uphoqelele ukuqhubeka kwe-dimensional kukho konke ukulingisa, ukukhanda, nokuqeda. I-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. isebenza njenge-a ukunemba okuphezulu kwemboni yemishini ye-CNC ngoba iphatha yonke i-micron njengemfuneko yokusebenza-hhayi okuhlosiwe. Ingxenye yakho elandelayo eyinkimbinkimbi ayidingi esinye isisho. Idinga uzakwethu okala impumelelo ngesikhathi sokusebenza, hhayi nje ukulethwa ngesikhathi.
