Paunonzwa 'kudyara kwekudyara kumba,' pfungwa zhinji dzinosvetukira kune iwo mavhidhiyo eYouTube — mukomana ari mugaraji, anonyungudusa magaba esoda ane choto chemba. Izvo zvakanaka kune matrinkets, asi inyika iri kure nekunyatso uye nesainzi yenyama inodiwa kune anoshanda, anotakura-zvinotakura zvikamu. Mhepo chaiyo mukunzwisisa, ini ndakaona, iri pakati peiyo craft-level process uye chirango cheindasitiri chinodiwa kugadzira chimwe chinhu chisingangotaridzike sechikamu chesimbi, asi chinoita senge chisingaperi. Hazvisi zvekudira; zviri pamusoro pezvose zvinoitika pamberi uye shure.
Mutambo weShell: Kupfuura Kungonyudza uye Kudonha
Ngatitaure nezvedeko. Mhomho yeDIY inowanzoshandisa yakapfava plaster-silica musanganiswa, uko zvinhu zvinotanga kushata kune chero chinhu chinopfuura kushandiswa kwekushongedza. Mukugadzirisa kwakakodzera, senge zvatakanatsa pazviri Qingdao Qiangsenyuan Technology Co., Ltd.(QSY), goko inzira yakawanda yeinjiniya chipingamupinyi. Inotanga nejasi rekutanga-yakanyanya kunaka zircon hupfu kana chimwe chinhu chakafanana-kutora pamusoro pemamiriro ezvinhu. Wobva wagadzira nejecha rakaomarara refractory. Nheyo imwe neimwe inoda mamiriro ekuomeswa chaiwo; kudzora mwando kwakakosha. Ndakaona kuyedza uko kuomeswa nekukasira kwakatungamira mukutsemuka kwegoko panguva yekudonha, kurasikirwa zvachose. Goko haringori mold; iyo inopisa inopisa inopisa panguva yekudira.
Apa ndipo panowanikwa sarudzo yegoko rakanangana nesimbi yauri kukanda. Kudira aruminiyamu yakadzika-kupisa nickel-based mugoko rakagadzirirwa low-melt aluminium? Catastrophic. Iyo goko inofanirwa kunge iine yakakwira sintering point uye thermal kugadzikana. Isu tinochengetedza mitsara yakaparadzana yemhando dzakasiyana dzemhuri dzezvinhu nekuti kuchinjika-kusvibiswa kunogona kukanganisa refractoriness. Ndiyo tsanangudzo inowanzoregererwa kana vanhu vachifunga kuti vanogona kushandisa imwe 'universal' slurry recipe.
Kurovera—kukanda jecha rakakasharara pamatope akanyorova—ndihwo humwe unyanzvi. Manual application inotungamira kune isingaenderane goko ukobvu uye isina simba mavara. Isu tinoshandisa mubhedha wakanyungudika kune chero stucco application. Ini ndinorangarira purojekiti pakutanga kwataive ne30% yekutadza chiyero pane Stainless simbi valve chikamu nekuda kwemanual stuccoing kusawirirana. Kuchinjira kune otomatiki masisitimu kwaisangova nezvekuita basa; kwaive kwekubvisa shanduko yakakosha.
Iyo Wax Patani: Panotangira Dimensional Kudzora
Munhu wese anotarisa pane simbi, asi wax pattern ndiyo chikamu chekutanga. Kurongeka kwayo kwedimensional uye kupera kwepasi kwakananga kutamisa. Majekiseni paramita yewakisi-tembiricha, kudzvanywa, kubata nguva-inotsanangurwa nechikamu chejometri. Chikamu chakatetepa chine madziro chinoda marongero akasiyana pane gobvu hub. Kushandisa wakisi musanganiswa usiri iwo (hongu, kune akawanda) kunogona kutungamira mukuputsika mhango patani pachayo, iyo inobva yasimudzwa mabhurobhu pakukanda kwekupedzisira.
Takamboita kuti mutengi atitumire modhi yeCAD kune yakaoma turbine blade. Iyo prototype wax mapatani akabuda zvakanaka. Asi patakatamira kukugadzira, takatanga kuona mapeji akajeka ehondo. Mupari wemhosva? Tembiricha yewekishopu yakanga yakwira mwaka nemwaka, ichichinja kutonhora kwewakisi mudhidhi. Zvakatimanikidza kushandisa makamuri ejekiseni ewakisi anodzorwa nemamiriro ekunze. Nzvimbo ye 'kumba' haigone kudzikamisa kusvika padanho iri, ndosaka mhedzisiro yehobbyist ichisiyana.
Kuisa mapatani ewakisi pa'muti' nderimwe danho rakakosha. Makona uye majunction anofanirwa kugadzirwa kuti abvumire simbi kuyerera uye kuderedza kusagadzikana. Dhizaini yakashata yegeji ndiyo yekutanga chikonzero chemukati porosity isingaonekwe kusvika machining. Isu tinoita yekusimbisa simulation ikozvino kune yega yega dhizaini, asi kwemakore yaive yekuyedza uye kukanganisa-uye zvikanganiso zvaive zvinodhura mirwi yemarata.
Material is King (Uye Kazhinji Haanzwisisike)
'Simbi isina tsvina' hachisi chinhu chimwe chete. A 304 isina tsvina inoita zvakasiyana zvachose mukudyara kwekudyara pane 316 kana 17-4 PH. Iyo yekupedzisira inoda mhinduro yekupisa kurapwa uye kuchembera. Kana uri kuita kumba Investment casting, iwe unogona kunge wakanamatira chero zvimedu zvaunogona kunyungudutsa, izvo zvisina kuzivikanwa maumbirwo. Kune chikamu chaicho, unoda zvinhu zvakasimbiswa. Isu tinopa alloys edu kubva kune chaiwo magiyo uye tinoachengeta akaparadzaniswa. Iyo yekunyunguduka tsika inodzorwa: deoxidizers, kunyunguduka tembiricha, kubata nguva. Kudira zvakanyanya kupisa kunogona kukonzera kukura kwezviyo; kutonhora zvakanyanya kunogona kukonzera kusawirirana.
Kushanda nema alloys akakosha senge cobalt-based kana nickel-based superalloys imwe ligi. Ivo vanowanzo nyungudutswa vacuum uye kudirwa kudzivirira oxidation. Iwe haugone kuzviita muchoto chakavhurika. Zvishandiso izvi ndosaka maindasitiri akaita seaerospace uye zvekurapa achivimba neakatanga ane anodzorwa nharaunda, kwete magaraji setups. Izvo zvinhu zvinoenderana zvachose neiyo inodzorwa maitiro.
Post-casting heat treatment chikamu cherwendo rwezvinhu. Haisi sarudzo 'yekupedzisira kubata.' Kune akawanda masimbi uye alloy mamakisi, inotsanangura ekupedzisira ma mechanic properties. Kuchisvetuka kana kuzviita zvisizvo (chakaipa tembiricha ramp, soak nguva, kana kudzima svikiro) kunokusiya uine chikamu chinogona kupfuudza ongororo yekuona asi chinotadza nekushushikana. Isu takanga tine batch yemaoko emakumbo akambopfuura ese macheki asi akaputika panguva yegungano. Dambudziko rakateedzerwa kumashure kune yakakanganiswa austenitizing kutenderera panguva yekupisa kurapwa.
CNC Machining: Iyo Inodiwa Partner yekukanda
Mashomanana mashoma ekuisa mari pazvikamu ari 'net-shape.' Yakakomba yekuisa chisimbiso nzvimbo, mabhoti maburi, uye chaiyo maficha anenge agara achida machining. Apa ndipo panodiwa kubatanidzwa. PaQSY, kuve neCNC machining mumba haisi nyore; iyo yemhando loop. Iwo machinists anodzosera ruzivo kune iyo yekutanga. Kana vachigara vachiwana nzvimbo yakaoma kana porosity mune imwe nzvimbo yekukanda, tinogona kugadzirisa gating kana tembiricha yekudurura yeforoma iyoyo.
Kugadzirisa yakaoma, as-cast geometry idambudziko. Iwe unofanirwa kumisikidza akavimbika datums kubva pakukanda pachayo, izvo dzimwe nguva zvinoreva kuwedzera madiki mapedhi kana maficha kune wakisi pateni yakanangana nenzvimbo yekugadzira. Uku ndiko kubatanidza dhizaini yekugadzira. Kana iyo yekukanda uye machining ichiitwa muzvitoro zvakasiyana, iyi loop yemhinduro yakatyoka, zvichitungamira kunguva yakareba yekutungamirira uye kurambwa kwakawanda.
Ini ndichanongedza webhusaiti yedu, tsngtaocnc.com, kwete yekusimudzira, asi semuenzaniso wekongiri weiyi synergy. Rondedzero yekugona ipapo-yakawanda-axis milling, kutendeuka-haina kupatsanurwa nebasa redu rekukanda. Ndiyo imwe hafu yegadziriro. Chimwe chikamu chinogona kunge chiri chekudyara chakakandwa kuti chiwane yakaoma yemukati ndima, ipapo CNC yakagadzirwa kuti iwane chaiyo flange kumeso. Kuedza kuita zvese izvo kuburikidza nekugadzira chete kwaizodhura zvakanyanya.
Iko Kuongorora Kwechokwadi: Kana Imba Ikasangana Neindasitiri
Saka, iwe unogona kuita yechokwadi investing casting kumba? Kune prototypes, akareruka geometries, uye asiri-akakosha zvikamu muzvinhu zvinozivikanwa, pamwe. Asi pane mawere aunorova kana uchida dimensional consistency, material certification, uye kuvimbika kwemuchina. Izvo zvivakwa - kutonga kwemamiriro ekunze, slurry manejimendi, metallurgical lab rutsigiro, inodzorwa kupisa kurapwa - ndizvo zvauri kunyatso kubhadharira nenyanzvi inowanikwa.
Iyo yakajairika nzira yekutadza yandinoona ndeyekurerutsa pateni uye shell engineering. Vanhu vanodira mari muchoto chakanaka asi vanoshandisa wakisi isina kunaka uye mold yepurasita. Mhedzisiro ndeyekukanda inotaridzika zvakanaka asi ine yakavanzika shrinkage kana chiyero chepamusoro chinoita kuti isashande. Mold ndiyo nheyo.
Mushure memakumi matatu emakore mundima iyi, chidzidzo ndechekuti kuisa mari mukati iketani yezana rekubatanidza. Iwe unogona kuve newakisi yakakura, goko rakakwana, kudira kunodzorwa, uye uchiri kuiparadza nekuzunza kwakashata kana kupisa kupisa. Inzira inoda kuremekedzwa kweketani yese. Kukwezva kwe kumba Investment casting zvinonzwisisika—kuchinja kubva wakisi kuenda kusimbi kunoshamisa. Asi chirango chinoshandura iwo mashiripiti kuita chakavimbika cheinjiniya chikamu chakavakirwa pane inodzorwa, kazhinji yemazuva ese, kutarisisa kune zviuru zvemashoko. Ndizvo zvinopatsanura chirongwa chehunyanzvi kubva kune chinobhururuka, chinotyaira, kana kuchengetedza hurongwa hwakamanikidzwa.
