Uma uzwa 'umkhiqizi wokutshala imali,' yini efika engqondweni? Kwabaningi, iyincwajana ecwebezelayo egcwele izingxenye ezicwebezelayo neziyinkimbinkimbi. Iqiniso liwukuthi, ukugaya kwansuku zonke, kungenye into ngokuphelele. Kuncane mayelana nesithombe sokugcina esiphelele nokuningi mayelana nephunga lengcina eshile ekuseni, ipharamitha engapheli ilungisa i-superalloy entsha, kanye nokwesaba okuthulile lapho igobolondo liqhekeka ngesikhathi sokuxosha. Igama ngokwalo lingadukisa—liphakamisa ukugxila ebunyeni. Eqinisweni, izitolo ezingcono kakhulu azizona nje izisekelo; bangabaxazululi bezinkinga abadidiyelwe, abavala igebe phakathi kwemodeli ye-CAD kanye nengxenye esebenzayo, enobuqotho obuphezulu. Abathengi abaningi bathola ukulungiswa enanini leyunithi noma isikhathi sokuhola, baphuthelwe ukuhluka okubalulekile: ukungaguquguquki ngaphansi kwengcindezi yokushisa, ukuthembeka kobukhulu endaweni yedesimali yesihlanu, kanye nolwazi lwensimbi lokuvimbela ukwehluleka kwebheshi ebizayo izinyanga eziyisithupha phansi komugqa.
Umbono Oyiphutha Owumgogodla: Ukuthulula Insimbi Nje
Asisike silibangise. Iphutha elikhulu ukubuka ukutshala imali njengenqubo yempahla. Uthumela umdwebo, uthola ingxenye. Uma kuphele. Inani langempela lomkhiqizi litholakala kulokho okwenzeka ngaphambi kokuba insimbi ibone isithando somlilo. Thatha ithuluzi lephethini. Ukufa kwe-aluminium eshibhile, eyenziwe ngokushesha kungonga u-$5k ngaphambili. Kodwa uma ingenakho okusalungiswa okufanele, noma ukwanda kwayo okushisayo akubalwa ngakho, uzothola amaphethini we-wax ahlanekezelwe awela kumaphupho amabi angemuva kokusakazwa. Ngike ngabona amaphrojekthi lapho 'ukonga' ekusetshenzisweni kwamathuluzi kuholele ekulahlekeni kwabantu abayisithupha ku-scrap kanye nemihlangano ebambezelekile. Isitolo esinolwazi, njengaye I-Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), izophikisana, ngezinye izikhathi ngamandla, ukuze idizayini yamathuluzi eqine kakhulu. Akukona upselling; kuvimbela inhlekelele. Iminyaka yabo engamashumi amathathu emdlalweni isho ukuthi kungenzeka ukuthi sebevele balenzile iphutha osuzolikhokhela.
Bese kuba nengcina. Akuwona wonke ama-wax omjovo aziphatha ngendlela efanayo. Ukuze uthole ubakaki we-aerospace onezindonga ezincane, udinga ukwakheka okune-viscosity ephansi, okunoketshezi oluningi ukuze uthwebule imininingwane emihle ngaphandle kwezimpawu zokucwila. Ngomzimba we-valve wesigaba esinzima, i-wax eqinile ibalulekile ukuvimbela ukuguquguquka ngesikhathi sokuphatha. Ukukhetha akunasizathu; ubizo lokwahlulela olususelwe ku-geometry, ingxubevange, kanye nenqubo eyalandelayo yokwakha amagobolondo. Ngikhumbula umsebenzi we-pump impeller lapho sashintshela ku-wax eyenziwe nge-polymer. Izindleko zeyunithi zikhuphuke ngo-15%, kodwa ukuncipha kokulungiswa kokushisela ekugcineni ngenxa yokuqedwa okungcono konga iklayenti ngaphezu kuka-40% ezindlekweni zokuqeda. Yileyo calculus efihliwe.
Futhi ukwakha amagobolondo? Yilapho ubuciko buhlangana khona nesayensi. Akukhona nje ukucwilisa kanye ne-stuccoing. I-slurry viscosity, indawo yokomisa (ukulawula umswakama yisilwane), inani lamajazi-okuguquguqukayo ngakunye kuyi-lever ethinta ukungena namandla. Igobolondo elibuthakathaka kakhulu lizoqhekeka ngesikhathi sokuthulula; awungeneki kakhulu, futhi uthola ukuvaleka kwegesi. Ngiye ngachitha ubusuku esitolo nochwepheshe, ngilungisa okuqukethwe kukafulawa we-zirconia ku-prime coat slurry ngesigamu samaphesenti ukuze kuqedwe ukungena kwensimbi endlini yensimbi engagqwali. Lokhu akukho kunoma iyiphi incwajana. Isezincwadini ezibhalayo kanye nokukhungatheka okwabiwe lapho iqoqo lokuhlola lehluleka.
I-Material Maze: Ama-alloys awadalwanga alinganayo
Wonke umuntu uthi usebenza 'ngensimbi engagqwali' noma 'ama-alloys asekelwe ku-nickel.' Udeveli useshidini lokucaciswa: 316L uma kuqhathaniswa no-316, i-Inconel 718 uma iqhathaniswa no-625. Umehluko ngokuvamile utholakala ekwelashweni kokushisa kanye nendlela insimbi eziphatha ngayo phakathi nesigaba sokuqina. Ukutshala izimali kuyinqubo yokuqinisa ngokushesha, engaholela ekuhlukaniseni izakhi ze-alloying uma ingalawulwa. Okwenkampani efana ne-QSY, ebala ama-alloys asekelwe ku-cobalt futhi ama-alloys asekelwe ku-nickel njengokukhethekile, leli akulona ibhokisi likaqhwi. Kusho ukuthi badayele ekuthululeni amazinga okushisa, ukushisa kwangaphambi kwesikhunta, namazinga okupholisa aqondene nalezi zinto ezifiphele.
Isibonelo sikakhonkolo: sake sasebenzisa iqoqo le-cobalt alloy (i-Stellite 6) yokugqoka amapuleti. I-chemistry yayiphelele, kodwa izingxenye zabonisa ukuqhekeka okuncane. Inkinga? Igobolondo elijwayelekile esilisebenzisele i-stainless libe nokusabela okuhlukile kokushaqeka okushisayo. Ingxubevange ye-cobalt, enobubanzi obuhlukene bokuqina, idinga igobolondo elinenhlanganisela eguquguqukayo ye-refractory ukuze kuhlangatshezwane nayo. Ukulungiswa kwakungekho emnyangweni wokuncibilika; yayibuyele ethangini eliwudaka. Lokhu ukuhlanganisa engikushilo. Inqubo yokulingisa iyiketango, futhi isixhumanisi esibuthakathaka asihlali silapho ulindele khona.
Yingakho uhlu lwezinto zomkhiqizi luyindaba, hhayi imenyu. Uma ubona 'ama-alloys akhethekile,' hlola ujule. Buza mayelana nezisindo zabo ezijwayelekile zokuthulula zaleyo ngxubevange, ileveli eyinkimbinkimbi abayizuzile, futhi—ngokubalulekile—uma benza okwabo ukuhlaziya kwe-spectrographic endlini. Ukulinda amahora angu-24 ukuze uthole umbiko welebhu yangaphandle kuyilapho ukushisa kwensimbi kuhlezi esithandweni kuwukunethezeka okungekho muntu ongakwazi ukukukhokhela.
Lapho Umshini Uhlangana Khona: I-CNC Handshake
Akukho ukutshalwa kwezimali 'okunesimo senethiwekhi' ngempela. Kuhlala kukhona ubuso be-datum emshinini, izindawo zokukhwelana okufanele ziqedwe, kanye nemicu okumele uyithephe. Yilapho imodeli ye-ehlanganisiwe ukutshala imali futhi CNC imishini ukusebenza kubonisa imibala yayo yangempela. Inzuzo enkulu ayikona ukusebenziseka kalula (yize lokho kuyiqiniso); kuwukuhlakanipha kwe-dimensional.
Ithimba lemishini elisebenza eduze kwe-Foundry lifunda izici zalo. Bayazi ukuthi emndenini othile wama-turbine blades afakwe ku-Inconel, kunesibonelelo esibikezelwayo, esingafanayo sesitoko endaweni yezimpande—mhlawumbe u-0.7mm ngakolunye uhlangothi, u-1.1mm kolunye, ngokusekelwe endleleni igobolondo elikhipha ngayo amanzi. Izinhlelo zabo ze-CNC zingabhalwa ukuze kuhlangatshezwane nalokhu kuhlukahluka okulindelekile, ukuthuthukisa izindlela zamathuluzi nokulondoloza impilo yomsiki. Uma ukusakaza nokwenza imishini kuyizinhlangano ezihlukene, le loop yempendulo ihamba kancane, isemthethweni, futhi ivamise ukulahleka ekuhumusheni. Umakhi uthola ingxenye ngesitoko 'esingalindelekile' futhi usola umsunguli; i-Foundry ayinandaba nezinselelo zokulungisa zikamashini.
Esikhungweni esihlanganisiwe, inqubo yangemuva kokusakazwa iwukuqhubeka. Ingxenye yakhelwe kucatshangwa ngomshini kusukela ekuqaleni. Sivame ukweluleka ukungeza amaphedi omhlatshelo ezindaweni ezingabalulekile ukuze kuhlinzekwe indawo evikelekile yokubamba i-CNC, into engaba ukucabanga (noma okungenzeki) uma izinqubo zihlukaniswa. Ukuvakashela isayithi labo ku tsngtaocnc.com, ungabona lokhu kugeleza: kusukela endaweni yokuhlanza ukusakaza, izingxenye ziya ngqo ekuhlolweni kwe-CMM bese zingena emibhedeni ye-CNC. Lokhu kuqhubeka kunciphisa ukulimala kokusingatha, kunciphisa isikhathi sokuhola, futhi, okubaluleke kakhulu, kwakha umthwalo wemfanelo ohlanganyelwe wekhwalithi yengxenye yokugcina.
Ingobo yomlando yokwehluleka: Izifundo Kumgqomo WeScrap
Ufunda okuningi ekulingiseni okuhlulekile kunokuphelele. Noma ubani osho okuhlukile uthengisa okuthile. Ekuqaleni kwesikhathi sami ngisebenza nalezi zinqubo, saba ne-oda le-iron ductile iron manifold. Ama-prototypes ayemahle. Ekukhiqizeni okuphelele, saqala ukuthola ama-fractures angahleliwe, ama-brittle. Umlandu? Ushintsho ku-inoculant esetshenziswa ekwelapheni okusansimbi, kuhlanganiswe nezinga lokupholisa elishesha kancane ezikhunjini zethu ezintsha, ezinkulu zamagobolondo. I-metallurgy yayizwakala ephepheni, kodwa ukusebenzisana kwenqubo kwakuvaliwe. Sikuxazulule ngokulungisa ukushisa kwangaphambili kwesikhunta bese sibuyela ku-inoculant yasekuqaleni, kodwa hhayi ngaphambi kokukhipha inqwaba ebalulekile.
Lolu wuhlangothi olungathandeki. Umkhiqizi omuhle unengobo yomlando yalezi zindaba—ezabo kanye nenganekwane yomkhakha. Kufanele babe ne-paranoid mayelana ne-process drift. Uma iqoqo elisha lesihlabathi esiphikisayo lifika, ingabe lisebenzisa igobolondo lokuhlola? Uma umswakama ukhuphuka ngo-July, ingabe bayawulungisa umjikelezo wokomisa? Lokhu kuqapha kokusebenza yikho okushiwo yisipiliyoni seminyaka engama-30, njengezithenjwa ze-QSY. Akuyona iminyaka engama-30 yokuphindaphinda; yiminyaka engama-30 yokuzivumelanisa neziguquko ezincane eziyinkulungwane.
Okunye 'ukwehluleka' kwakudala ukungaxhumani kahle kuma-specs. Umdwebo udinga i-Roughness ye-125 Ra max. Njengo-cast, singakushaya lokho. Kodwa uma ikhasimende lidinga ngempela ukuqedwa komshini kuleyo ndawo futhi likhohlwe ukukuphawula, ingxenye ayinamsebenzi. Manje, isitolo esinolwazi sizokuthola lokhu. Bazobona ukubekezelelana okuqinile ku-bore noma inothi mayelana ne-seal groove futhi bashayele ukuze bacacise: Ingabe wenza lobu buso? Ngoba njengoba-cast, asikwazi ukubamba lokho flatness. Lolo cingo, leso sikhathi sokungabaza nokucaciswa, sibaluleke ngaphezu kwenkulungwane ukulingisa okuphelele kodwa okungaqondwa kahle.
Isilinganiso Sangempela: Ukungaguquguquki Ngaphezulu Kwesikhathi Eside
Ngakho, umahlulela kanjani i umkhiqizi wokutshala imali? Ungamane ubuze isampula labo elingcono kakhulu. Cela idatha yabo ye-statistical process control (SPC) yobukhulu obubalulekile engxenyeni esebenza isikhathi eside. Buza mayelana nephesenti lesivuno sabo sephasi yokuqala. Buza mayelana nenqubo yabo yokufaneleka into entsha noma umhlinzeki omusha oyinhloko. Izimpendulo zizokutshela konke.
Umgomo awukona ukukhiqiza ingxenye eyodwa eyisimangaliso yombukiso wezohwebo. Izokukhiqiza inombolo enkulu engu-500 enokwethenjelwa okufanayo nenombolo yenkatho engu-1, ngokuhlukana kweminyaka emihlanu, ngisho nalapho unjiniyela wamathuluzi wokuqala esethathe umhlalaphansi. Lokhu kudinga izinhlelo, kodwa futhi isiko elihlonipha umsebenzi wezandla. Ngumakadebona wokuhlanganisa isikhunta ozwa ukuhudula kancane kuphethini ye-wax futhi azi ukuthi i-fae idinga ukuhlanzwa ngaphambi kokuba i-CMM ihlabe umkhosi iphutha lobukhulu.
Ekugcineni, ukusebenzisana nomkhiqizi kumayelana nokufinyelela inkumbulo yabo yeqoqo lezinkinga ezixazululiwe nezinhlekelele ezigwenyiwe. Kumayelana nokuzimisela kwabo ukusho ukuthi ukuklama kuzoba yinkinga, yingakho ngaphambi kokuthi insimbi yamathuluzi isikwe. Uma ubheka iphothifoliyo evela enkampanini ehamba ngamabili ukubunjwa kwegobolondo ngomshini onembayo, ubona umphumela walowo mqondo ohlanganisiwe, oxazulula izinkinga. Ingxenye ayilindi nje; yakhiwe, yazalwa ngenqubo ecubungula zonke izinyathelo ukusuka egunjini le-wax kuye ekuqedeni kokugcina. Yilokho okuqukethwe ngemuva kwegama elingukhiye.
