Udinga ama-prototypes ensimbi asebenzayo—ashesha, athengekayo, futhi anokwethenjelwa kakhulu—ngaphandle kokuzibophezela ekusetshenzisweni kwamathuluzi okugcwele kokukhiqiza? A i-prototype sand casting factory amabhuloho ukuthi igebe. Kodwa akuwona wonke ama-Foundries aletha ngesivinini, ukunemba, noma ubuqotho bezinto ezibonakalayo ngokugijima kwevolumu ephansi. Sibone amakhasimende echitha amaviki angu-3–6—kanye nezinkulungwane zamadola—elinde abalingisi abafika benokuphambuka kwe-warpage, porosity, noma kwe-GD&T abakuthola kuphela ngemva komshini. Ukulungiswa akuhambisi ngokushesha. Kuqina ukuhlanganiswa phakathi komklamo wokulingisa, ukwenziwa kwesikhunta, kanye nenqubo ye-metrology kusukela ngosuku lokuqala.
Kungani Ukusakazwa Kwesanti Kusawina Kuma-Prototypes Ensimbi Yasekuqaleni
Ukulingisa isihlabathi akubona ubuchwepheshe befa—kuyindlela esabelayo, engabizi kakhulu eya ezingxenyeni zensimbi ezinomumo oseduze nenetha ezingaphansi kuka-100 kg. Ngokungafani nokutshala imali, yeqa amaphethini we-wax namagobolondo e-ceramic. Ngokungafani ne-die casting, iphatha ama-cobalt alloys, izinsimbi ezingenasici, nama-ayina ane-silicon ephezulu ngaphandle kwezindleko ezivimbelayo zamathuluzi. Iphethini eyodwa esebenziseka kabusha—i-CNC-eyenziwe nge-aluminiyamu noma ukhuni olunamekwe nge-resin—isekela ukuthululwa kwesibonelo esingu-5 kuya kwezingu-20. Isikhathi sokwelashwa sifinyelela ezinsukwini eziyi-10-18. I-Material flexible ihlala iphakeme: I-ASTM A48 Class 30 grey iron, ASTM A197 ironableable iron, ASTM A27 LCC carbon steel, ngisho ne-AMS 5387 cobalt-nickel superalloy—konke kungasakazwa ngokuqiniswa okulawulwayo kanye nokwelashwa kokushisa kwangemva kokuthululwa.
Kodwa isivinini asisho lutho uma ukusakaza kuhlanekezela ngesikhathi sokupholisa noma kwehluleka ukuqinisekiswa kobukhulu esiteshini se-CMM. Yilapho izitolo eziningi “zesibonelo” zishoda khona. Baphatha ukukhishwa kwesihlabathi njengenqubo ezimele—hhayi njengendawo yokuqala ochungechungeni lokukhiqiza olunembayo. Silinganise kufika ku-0.8 mm wokushwabana okungalindelekile ezibunjeni ezingalawulwa zesihlabathi esiluhlaza ezindlini zamasilinda ephampu. Imbangela? Ingcindezi ye-ramming engahambisani, amashifu omswakamo osendaweni, futhi akukho ukuqapha koshintsho lwesikhathi sangempela. Ukulungisa okudinga isiyalo se-foundry-floor-hhayi nje ukulingisa isofthiwe.
Yini Ehlukanisa I-Prototype Yeqiniso Yemboni Yokusakaza Isihlabathi Ku-General Foundry
A ozinikele i-prototype sand casting factory isebenza ngaphansi kwemikhawulo emithathu engaxoxiswana nayo: ukulandeleka, ukuphindaphinda, nokusabela. Hhayi ivolumu. Hhayi intengo ephansi. Nakhu ukuthi lokho kudlala kanjani ekusebenzeni:
- Ukulandelela okubalulekile kuqala ekuncibilikeni: Iqoqo ngalinye liphethe imibiko yokuhlolwa komshini oqinisekisiwe (ama-MTR), amalogi esithandweni somlilo, nokuhlaziywa kwe-spectral. Awekho amalebula athi “ingxubevange evamile”. Ezingxenyeni ezisekelwe ku-T800 ze-cobalt, siqinisekisa okuqukethwe kwe-cobalt ngaphakathi kokungu-±0.3%, i-chromium phakathi kuka-±0.2%, kanye nekhabhoni engaphakathi kuka-±0.02%—hhayi nje ukuthobela i-AMS 5387, kodwa ukuvumelana phakathi kokuthela.
- Ukulawulwa kwe-Dimensional kuqala ngaphambi kokuthulula: Sisebenzisa ukuskena kwe-3D optical kuwo wonke amaphethini kanye nebhokisi eliyinhloko—hhayi nje ukusakaza kokugcina. Uma umdwebo wezindlu wephampu ye-piston ubiza u-±0.15 mm ekuqondanisweni kwe-bore, siqinisekisa i-engeli yokusalungiswa yephethini, i-offset yomugqa wokuhlukanisa, kanye nendawo yokuphrinta eyinhloko *ngaphambi* kokupakishwa kwesihlabathi.
- Impendulo ivalwa ngamahora, hhayi izinsuku: Uma ikhasimende lithumela umdwebo womzimba we-valve we-GD&T-heavy, ithimba lethu lonjiniyela libuyisela amanothi okwenziwa—okuhlanganisa nezincomo zokubeka isango, ukubekwa kwesikhuphukeli, nezibonelelo ezilindelekile zesitoko somshini—emahoreni angu-48 ebhizinisi. Akukho ukulinda abaxhumanisi bangaphandle.
Abanye bangase baphikise ukuthi ukukhishwa kwesihlabathi akukwazi ukubamba ukubekezelelana okuqinile. Kodwa sihlala sibamba u-±0.25 mm ezicini ezibucayi njengeziyingi zebhawudi ye-flange nama-shaft bores—ngisho nasemigudwini yamavalvu e-hydraulic engu-450 mm ubude—sisebenzisa isihlabathi esiboshwe nge-resin, ukuhlanganiswa kwesikhunta esisizwa yivacuum, kanye nokukhululeka kwengcindezi yangemva kokunyakaziswa. Umehluko akuwona umlingo. Ibhalwe phansi amapharamitha enqubo, okokusebenza okulinganiselwe, nonjiniyela asebekhiphe izingxenye zezimboni eziyi-12,000+ kusukela ngo-2015.
Okukhiphayo Komhlaba Wangempela: Lokho Okutholayo Empeleni
Uma wenza imboni yeqiniso yokuphonsa isihlabathi, awutholi ukulingisa okungavuthiwe kanye nebhilidi yokulayisha. Uthola ingxenye eqinisekisiwe, elungele ukusetshenziswa emshinini—enemibhalo egcwele. Konke ukuthunyelwa kuhlanganisa:
- Umbiko wobukhulu esayiniwe obonisa amanani alinganiswe ne-CMM ngokumelene nomdwebo wakho, onekhodi yokudlula/isimo sokuhluleka esifakwe umbala ngesici ngasinye
- Izithombe zendawo esakazwayo-ezigqamisa noma yikuphi ukuqina okuncane noma i-flash ewela ngaphakathi kwenqubo yokwamukela ye-ASTM A601
- Amarekhodi okwelashwa kokushisa (uma ecacisiwe), afaka isikhathi sokucwiliswa emanzini, amazinga okushisa, kanye nedatha yesimo sezulu esishisayo
- Isitifiketi sezinto ezibonakalayo esinokwakheka kwamakhemikhali okugcwele kanye nemiphumela yokuhlolwa kwemishini (amandla okudonsa, isivuno, ubude, ubulukhuni)
Lokhu akubona ubunjiniyela obudlulele. Ukunciphisa ingozi. Ipompo eyodwa ye-OEM yaseNyakatho Melika igweme ukukhunjulwa kwenkambu engu-$220,000 ngenxa yokuthi iskena sethu se-radiographic sangaphambi kokuthunyelwa sibambe ukufakwa kwendawo engaphansi ku-AMS 5387 umlomo wombhobho—okubonakala kuphela ekuthelelekeni kwesithathu kweqoqo labo le-prototype elinezingxenye ezinhlanu. Lelo zinga lokuhlolisisa lisebenza kuphela uma ukusakaza, i-NDT, ne-metrology kuhlala ngaphansi kophahla olulodwa.
Izinyathelo Ezilandelayo: Ungaqala Kanjani I-Prototype Yakho Run Right
Qala ngomdwebo wakho—hhayi ibhajethi yakho. Sithumelele ifayela lakho elithi STEP noma le-IGES elinama-callouts e-GD&T, i-specil yempahla, nezimfuneko zokusebenza (isb., “kumele ivale kubha engu-350 ngaphandle kokuguqulwa”). Sizophendula ngombiko we-DFM onemininingwane eminingi, isikhathi sokuhola, kanye nekhwothi eqinile—akukho kubhaliswa, awekho ama-NDA adingekayo kusengaphambili. Isikhungo sethu esithobela i-ISO e-Qingdao sisekela izingxenye zensimbi ezinevolumu ephansi ngokushesha ukusuka ku-2 kg ukuya ku-85 kg, ezinomshini ogcwele we-CNC, ukwelashwa kokushisa, kanye nokuqedwa okungaphezulu okutholakala endlini. Uma uhlelo lwakho lokusebenza ludinga ama-alloys e-cobalt-nickel, ubuqotho bokucindezela okukhulu, noma i-microstructure ephindaphindwayo, qala ngesiyalo sokusakaza—hhayi ukuyekethisa.
Konjiniyela abakha amasistimu asebenza ngogesi, okokusebenza kukawoyela negesi, noma izingxenye zemoto ezinobunjiniyela, kwesokudla i-prototype sand casting factory akugcini nje ukwenza izingxenye. Iqinisekisa inhloso yakho yokuklama—ngaphambi kokuthi usike ithuluzi lakho lokuqala lokukhiqiza.
