Lapho onjiniyela becacisa izingxenye zamasistimu asebenza ngogesi, amaphampu enkundla kawoyela, noma ama-winch assemblies asindayo, “imboni yezingxenye ezinemba kakhulu” ayilona nje igama lokusesha—imfuneko engaxoxiswana nayo. Ukuzinza kwe-Dimensional ngaphansi kwengcindezi yamabha angu-500. Ubuqotho bobuso ngemva kwemijikelezo engu-10,000 yokuxhumana okulimazayo. Ukuvumelana kwe-Metallurgical kuwo wonke amaqoqo amayunithi angama-200. Lokhu akuzona izinhloso zethiyori. Amabhentshimakhi ansuku zonke—esihlangane nawo kuma-OEM amavalvu aseNyakatho Melika, izihlanganisi zezimoto zobunjiniyela baseJalimane, nabakhi besistimu yephampu yase-Singapore.
Kungani I-Cobalt Alloys Idinga Okungaphezu Kwemishini Ye-CNC Nje
Izingxenye ze-cobalt-nickel—ikakhulukazi i-AMS 5387 ne-T800-grade—zihluleka ngokungalindelekile lapho amapharamitha omshini ekhukhuleka ngo-0.5%. Sifunde lokhu kabuhlungu ngesikhathi sokushayela umshayeli ka-2022 kwezindlu zamavalvu okucindezela ngaphansi kolwandle: ukuqhekeka okuncane kuvele kuphela ngemuva kokuhamba ngebhayisikili elishisayo, kulandelelwa emuva ekulayisheni kwe-chip okungahambisani ngesikhathi sokudlula ama-rough. Kusukela lapho, ifekthri yethu yezingxenye ezinemba okuphezulu ishumeka ukuqapha kwetorque yesikhathi sangempela kuzo zonke izikhungo zemishini ye-5-axis—hhayi njengento yohlu lokuhlola, kodwa njengesango lenqubo. Ayikho ingxenye efinyelela ekupheleni ngaphandle uma ukuhluka kwetorque kuhlala kungaphakathi kuka-±2.3% kuwo wonke amaphasi amathathu alandelanayo.
Lesi siyalo sidlulela nasekutholeni izinto ezibonakalayo. Asizamukeli izitifiketi zokugaya kuphela. Yonke i-cobalt alloy ingot ithola i-spark emission spectroscopy endlini ngaphambi kokuphonsa. Kungani? Ngoba ukulandelela isibabule ngaphezu kuka-0.008% kubangela ukudabuka okushisayo kumabhomu anezindonga ezincane-ngisho noma inqwaba "idlula" i-ASTM A992. Ithimba lethu le-Foundry lithuthukisa amaphrofayili okwelapha ukushisa nabahlinzeki bezinto ezibonakalayo, lilungisa izikhathi zokucwiliswa emanzini ngokususelwe esilinganisweni sangempela sikasayizi wokusanhlamvu—hhayi amashadi ajwayelekile.
Ukuhlanganisa Okuqondile Okulawula Ngempela Ukuhlukahluka
Abahlinzeki abaningi bangaphandle kokukhipha, ukukhanda imishini, nokwelashwa kokushisa. Lokho kudala imithombo emithathu ehlukene ye-dimensional drift. Esikhungweni sethu se-Qingdao, isikhunta sokutshala imali senziwa ngomshini ochungechungeni olufanayo lwe-DMG Mori NT oluqeda ingxenye yokugcina. I-CMM efanayo iqinisekisa kokubili ukulingisa kwezwe eliluhlaza kanye nemihlangano eqediwe. Ilebhu efanayo ye-metrology ikala zonke izisetshenziswa nsuku zonke ngokumelene nezingcweti ezilandelekayo ze-NIST.
Umehluko siwubona ngokucace kakhulu ezindlini zesilinda sephampu ye-piston. Amakhasimende athumela ama-callout e-GD&T adinga isikhundla sangempela esingu-±0.005 mm ezimbobeni ezinentambo eziyi-12. Uma ukusakaza kanye nokwenza imishini kwenzeka ezitolo ezihlukene, iphutha elikhulayo livame ukushaya ±0.018 mm. Ukugeleza komsebenzi wethu okudidiyelwe kuyibambe ku-±0.004 mm—ngoba uhlelo lwe-CNC luqondisa ngokuqondile izindawo zedatha ye-as-cast askeniwe ngesikhathi sokuhlolwa kwe-athikili yokuqala. Akukho ukucabanga. Awekho amalophu okusebenza kabusha.
Lokhu kulawula kubaluleke kakhulu kumajiyometri angajwayelekile. I-oda lakamuva le-offshore winch center shaft roller lidinga ama-helical grooves angu-7° kububanzi obungu-320 mm, oqiniswe ku-58 HRC. Abaqhudelana nabo bacaphune amasonto ayi-14 ngengozi ye-scrap engama-30%. Silethe emavikini angu-8—sisebenzisa i-carbide efakwe ngokwezifiso egcina ubuqotho obunqenqemeni ngemizuzu engama-42 yokusikwa okuqhubekayo. Idatha yempilo yamathuluzi manje ihlala kusizindalwazi sethu sangaphakathi, esimakwe ku-AMS 5387, ububanzi bokuqina, nezinga lokugeleza kokupholisa.
Ikhwalithi Engami Embikweni Wokuhlola
Izimiso zethu zokuhlola zilandela i-ASME Y14.5—kodwa qhubeka phambili. Yonke ingxenye ebalulekile iphethe amawele edijithali: irekhodi elinesitembu sesikhathi elibonisa ukuhlaziywa kwezinto ezingenayo, ukuskena kwe-CMM okungaphakathi kwenqubo ezindaweni zokuhlola ezingu-3, ukufundwa kokuqina kwendawo ngaphambi nangemuva kokudlula, kanye nemiphumela yokuhlola yokusebenza (isb., izinga lokuvuza kwe-helium kumabha ayi-10). Lokhu akukona okwetiyetha yokuthobelana. Kuyindlela esihlonze ngayo ukwehluleka kophawu okuphindelelayo ezisekelweni zephampu: imbangela eyinhloko bekuwukucindezeleka okuyinsalela okuvela ekupholiseni okungalingani ngesikhathi sokudonsa—hhayi iphutha lomshini. Silungise umjikelezo wokucisha, saqinisekiswa nge-X-ray diffraction mapping, futhi sehlisa ukwehluleka kwenkambu ngo-92%.
Sigcina ukulandeleka okugcwele kuze kufike kunombolo yokushisa yendawo ngayinye yezinto ezingavuthiwe—futhi sikuxhume kuyo yonke imiphumela yokuhlolwa. Uma ikhasimende lihlaba umkhosi inkinga, sidonsa wonke umlando wedijithali ngaphansi kwamasekhondi angu-90. Cha "sizobuyela kuwe." Cha "ngokwenqubo yethu evamile." Idatha nje, izitembu zesikhathi, nokuqonda okungenziwa.
Ukwethembeka Kuqala Ngaphambi Kokunqunywa Kokuqala
Imboni yezingxenye ezinemba okuphezulu izuza ukwethenjwa hhayi ngesikhathi sokukhiqiza—kodwa phakathi nokubuyekezwa konjiniyela. Sihlaba umkhosi izingozi zokwenziwa kusenesikhathi: “Lokhu ukujiya kodonga okungu-0.15 mm kumbobho we-cobalt alloy kuzodinga okuthunyelwe kosekelo lwe-EDM; isikhathi sokuhola sinyuka ngezinsuku eziyi-11.” Noma: “Ukuphela kwakho okucacisiwe kwe-Ra 0.2 µm ku-sandcast iron iron kudinga ukwenziwa kabusha—nanku umthelela wezindleko uma uqhathaniswa no-Ra 1.6 onembozo yokubunjwa ethuthukisiwe.” Asisho ukuthi "yebo" kumiklamo engasebenzi. Sithi "nakhu okusebenzayo, nakhu ukuthi kungani, futhi nakhu ukuhwebelana."
Leyo ndlela igcine ukulethwa ngesikhathi kuzinzile ku-98.7% ezinyangeni ezingama-36 zilandelana—ngisho nangesikhathi sokuphazamiseka kochungechunge lokuhlinzekwa kwempahla emhlabeni wonke. Kanjani? Ngokubamba isitokwe sebhafa samasu wamabhilidi e-AMS 5387 aqinisekisiwe kanye nama-alloys ayinhloko we-T800, kanye nokugcina izivumelwano zemithombo emibili zamathuluzi okusika abalulekile. Hhayi njengokuqoqwa kwempahla—kodwa njengokunciphisa ubungozi kulinganiswe ezindleleni zokwehluleka zangempela esizibonile ensimini.
I-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. yakha izingxenye lapho ukwehluleka kungeyona inketho. Uma ngabe uhlelo lwakho lokusebenza ludinga ukuqiniseka kobukhulu kuma-cobalt alloys, ubuqotho besakhiwo ekubunjweni kokucindezela okukhulu, noma ukuthembeka kokusebenza kumhlangano wephampu obaluleke kakhulu—udinga okungaphezu komhlinzeki. Udinga imboni yezingxenye ezinemba okuphezulu ephatha konke ukubekezelelana njengesithembiso.
