Iyo wunvise 'inshinge zicyuma zishushanya ibyuma bitagira umwanda', ishusho ihita akenshi ni igice cyiza, cyerekana ishusho. Ngiyo ikibanza cyo kugurisha. Ukuri, cyane cyane hamwe n amanota nka 316L cyangwa 17-4 PH, ni imishyikirano ihoraho hagati ya geometrie, imitungo, nigiciro. Benshi bibwira ko ari inshinge ya pulasitike ibumba ifu yicyuma - aho niho hambere haribeshya. Ibyiciro byo gutesha agaciro no gucumura niho inzira nyayo iba cyangwa ipfa, kandi aho gutsindwa kwinshi, niba bigiye kubaho, bucece.
Allure nukuri kwa MIM kuri Stainless
Ubujurire buragaragara. Urabona kubyara ibintu bigoye, bito-bito-biciriritse bingana ibyuma bidafite ibyuma hamwe nibisobanuro byiza hamwe nubukanishi bwiza, akenshi bikuraho imashini ya kabiri. Tekereza ibikoresho byo kubaga urwasaya, ibikoresho byimbunda, cyangwa ibyuma bikomeye. Ariko 'ikinyabupfura' nijambo rikoreshwa. Ntabwo ari impimbano cyangwa ibikoresho byakozwe. Microstructure ya MIM iratandukanye muburyo busanzwe-burenze bumwe, ariko hamwe nibisigisigi bisigaye. Kuri porogaramu nyinshi, birakwiriye rwose, ariko ntushobora kwerekana 'ibyuma bitagira umwanda' ku gishushanyo hanyuma ukeka ko MIM ari umusimbura. Guhitamo ibiryo, ingano yifu yikwirakwizwa, hamwe nikirere cyangiza (hydrogen, argon, vacuum) byerekana mu buryo butaziguye kurwanya ruswa ya nyuma n'imbaraga. Nabonye imishinga ihagaze kuko spec yahamagaye imikorere ya ASTM F138 (implant-grade 316L) yo kwangirika ariko iduka ryakoraga urwego rusanzwe rwo gucumura inganda, bigatuma imvura ya karbide itemewe kumupaka wingano.
Umutwe umwe wihariye ufite ingese muri MIM ni kugenzura karubone. Mugihe cyo gusiba, niba ubushyuhe bwumuriro budacunzwe neza, karubone irashobora gusigara inyuma, ibyo mubyuma bitagira umwanda bishobora gutuma chromium karbide ikora, kwambura matrix ya chromium no kwica ruswa. Nukunanirwa guceceka - igice gisa neza, gitambutsa ibipimo fatizo, ariko bikananirana. Ukeneye utanga ibintu byunvikana metallurgie, ntabwo ari kubumba gusa. Aha niho hambere mugushora imari, nkibyo ubona kuri firime nka Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), biba ngombwa. Babaye mubyuma byuzuye muburyo bwimyaka mirongo. Mugihe intandaro yabo ari Igikonoshwa na gushora imari, ubwojyakuzimu mu gutunganya ibyuma-kumenya uko ubushyuhe bugira ingaruka ibyuma na idasanzwe—Nubuhanga bwibanze busobanura neza kugenzura ubuziranenge mubikorwa bya MIM. Nukugenzura ibyiciro bihinduka.
Ubundi buryo bufatika: guteganya ibipimo. Kugabanuka gushirwa mubikorwa, ariko ntabwo buri gihe ari isotropic. Ikirebire, cyoroshye gishobora kugabanuka muburyo butandukanye. Twigeze gukora prototype yuburyo bwo gufunga - leveri ntoya idafite ingese ifite umwobo wuzuye. Kubumba byari bitagira inenge, ariko nyuma yo gucumura, umwobo wari elliptique, ntabwo wari uruziga, kubera ubucucike butari bumwe mubice byicyatsi. Gukosora ntibyari mu itanura ryacumuye; yari yagarutse mubishushanyo mbonera no gukingura, byemeza ko ifu imwe yatemba mugihe cyo gutera inshinge. Ubu ni bwo buryo bwo gutondeka, gukemura ibibazo bitandukanya umucuruzi ibice hamwe nabafatanyabikorwa bakora.
Gucumura: Gukora-cyangwa-Kumena Icyiciro
Uyu niwo mutima wacyo. Igice cyacuzwe 'igikara' kiroroshye, cyuzuye polymer binder. Kwanga gukuraho iyo binder gahoro gahoro, witonze, kugirango wirinde gusinzira cyangwa gutera inenge. Noneho gucumura bihuza ibice byicyuma. Kubidafite umwanda, ikirere kirakomeye. Ikirere cyiza cya hydrogène gishobora kuba cyiza cyo kugabanya okiside yo hejuru no kugera ku bucucike bwinshi, ariko ni ingaruka zikorwa nigiciro. Vacuum gucumura hamwe nigitutu cyigice cya argon nibisanzwe. Umwirondoro w'ubushyuhe - igipimo cyinshi, ubushyuhe bwo hejuru (akenshi munsi yumurongo wa solidus), no gufata umwanya - bigenzura neza ubwinshi bwanyuma.
Intego yubucucike bwa hafi (vuga, 96% +) birasanzwe, ariko ni ubucuruzi. Ubucucike buri hejuru busobanura guhindagurika neza no kurwanya ruswa, ariko kandi kugabanuka gukabije hamwe ningaruka nyinshi zo guturika cyangwa kugoreka. Rimwe na rimwe, kubice byubatswe gusa bidafite amazi, kwemera ubwinshi bwa 93-94% nigiciro cyemewe / icyemezo cyimikorere. Ndibuka agace kakozwe kuva 17-4 PH aho umukiriya yashimangiye ubwinshi. Twabigezeho, ariko igice cyagabanutseho gato, bisaba gukora igiceri (sizing) mugupfa nyuma yo gucumura, byongeweho ikiguzi. Byari ngombwa? Birashoboka ko atari byo, ariko urupapuro rwabigenewe rwabisabye. Irerekana ko hakenewe ibiganiro hakiri kare hagati yubushakashatsi ninganda.
Nyuma yo gucumura, ibice akenshi bikenera kurangiza. Kunyerera kugirango usubizwe, kurasa kurasa kugirango ugabanye imihangayiko, cyangwa ndetse na CNC yoroheje ikora ibintu byingenzi. Aha niho utanga isoko hamwe Imashini ya CNC ubushobozi, nka QSY, ifite akarusho. Bashobora gukora urunigi rwose - MIM, gucumura, hanyuma gutunganya neza urufunguzo rwa datum cyangwa urudodo - munsi yinzu. Itunganya ibikoresho kandi, cyane cyane, itanga inshingano. Niba imiterere yimashini yazimye, ntushobora kubona impaka hagati yinzu ya MIM nu iduka ryimashini zishinja mugenzi we.
Ibikoresho bifatika Kurenga 316L
Mugihe 316L ari ifarashi yakazi, andi manota adafite ingese hamwe na alloys birakoreshwa. 17-4 PH irazwi cyane kuko irashobora kugwa imvura iguye nyuma yo gucumura. Ariko hano hari impungenge: inzinguzingo yo gucumura kuri 17-4 PH igomba guhuzwa kugirango yirinde gukora delta ferrite, ishobora kuvangavanga igisubizo cyakera hamwe nubukomezi bwa nyuma. Ntushobora gukoresha umwirondoro w'itanura nka 316L.
Noneho hariho ibikoresho byinshi bidasanzwe. Nagize uruhare mu mishinga nkoresha MIM ya cobalt (nka CoCrMo kubitera amenyo) na nikel. Izi ninyamaswa zitandukanye. Ifu ihenze, ubushyuhe bwo hejuru buri hejuru, kandi inzira ya Windows iragufi. Kwanduza ni impungenge zikomeye. Ntushobora gukoresha nikel ivanze nyuma yicyuma kitagira umwanda udafite isuku ryuzuye kandi usukuye. Ntabwo aribikorwa byububiko rusange bwakazi; bisaba imirongo yabugenewe hamwe na protocole ikomeye yo kugenzura. Isosiyete ifite amateka muri idasanzwe, na none nkuko bigaragara mubipimo bya QSY, birashoboka cyane ko ufite disipuline shingiro kubikorwa nkibi, kabone niyo baba babikoresha muburyo butandukanye bwo gukora nka MIM.
Guhitamo ibikoresho nabyo bihuza ibiryo. Ivanga / ifu ivanze igomba kuba imwe. Amatungo mabi arashobora kuganisha kuri 'binder pooling' mugihe cyo gutera inshinge, bigatera uduce dufite ubunini bwifu butandukanye, hanyuma bigacumura neza. Ninenge idashoboka gukosorwa nyuma. Isoko rihoraho, ryujuje ubuziranenge ni kimwe cya kabiri cyintambara.
Iyo MIM Atari Igisubizo
Ni ngombwa kumenya imipaka. MIM ntabwo ari nziza kubice binini cyane (muri rusange, tekereza munsi ya garama 250 kubitagira umwanda). Birakennye kubice bifite ibice byinshi byambukiranya ibice, kuko bishobora gufata binder na sinter nabi muri rusange. Ntabwo kandi ari byiza niba ukeneye ibintu byuzuye byubukanishi-kubintu bikomeye byo mu kirere bigenda byogoshesha imisatsi miremire, wakomeza kureba kubituruka mububiko.
Nayoboye abakiriya kugana izindi nzira. Rimwe na rimwe, kubice bitagoranye bitagira igice, gushora imari ni mubyukuri mubukungu, cyane cyane mububiko buke cyangwa niba uburebure bwurukuta butandukanye cyane. Ibikoresho (ibishashara) bihendutse kuruta ibyuma bikomye MIM. Ibindi bihe, niba igice cyoroshye ariko gito, kashe yerekana neza hanyuma gushakisha cyangwa gusudira bishobora gutsinda. Icyemezo cya matrix kirimo ingano, geometrie, ibintu bifatika, na bije. Umufatanyabikorwa mwiza wo gukora agomba kuba afite icyo kiganiro afite intego, ntabwo asunika inzira yambere yabo. Kuba sosiyete nka QSY itanga inzira nyinshi -casting, gutunganya, hamwe no kwaguka, birashoboka gusobanukirwa inzira nka MIM - byerekana ko bashobora gutanga ubwo buryo bwo kugisha inama aho gutanga ubunini-bumwe.
Ikigeragezo kimwe cyatsinzwe kiza mubitekerezo ni umukiriya ushaka umuyoboro muto utagira umuyonga ufite ibyuma byubatswe imbere - umukandida wa MIM wuzuye ku mpapuro. Twabikoresheje prototyp, ariko abanyamuryango ba lattice bari beza kuburyo mugihe cyo kwishura, bari kugabanuka. Twahinduye imiterere yinkunga muburyo, twahinduye igipimo cyo kugabanya, ariko umusaruro wari mubi. Umushinga warahagaritswe. Byari geometrie yasunikaga kurenga imipaka yubuhanga bwibikoresho byihariye. Ugomba kumenya igihe cyo kugenda.
Urebye Urunigi rwo gutanga
Hanyuma, suzuma inkomoko. Inganda za MIM zifite abakinnyi kuva ku buryo bwikora cyane, buhagaritse ibihangange kugeza ku maduka mato mato. Kuri prototyping hamwe nubunini buke butanga umusaruro, iduka rito, tekinike yubuhanga irashobora kwitabira cyane. Bakunze kuba aho usangamo abahanga mubikorwa byukuri bazahindura umwirondoro witanura mukiganza cyawe.
Mugihe usuzuma umufasha wawe, ntusabe gusa agatabo k'ubushobozi. Baza uburyo busanzwe bwo gukora bwo gucumura 316L. Saba kureba raporo yubucucike na micrografi kubice bisa. Baza uburyo bujuje ibyokurya bishya. Ibisubizo byabo bizakubwira kurenza urubuga urwo arirwo rwose. Isosiyete imaze igihe kinini mubucuruzi bwibyuma, nkibyavuzwe mbere hamwe nayo imyaka irenga 30 mugukina no gutunganya, bizana umuco wo gutezimbere inzira hamwe na sisitemu nziza itagereranywa, nubwo bashobora gukoresha ikoranabuhanga rishya nka MIM. Urashobora kubona byinshi kubushobozi bwabo shingiro kurubuga rwabo, https://www.tsingtaocnc.com.
Amaherezo, gutera inshinge ibyuma bidafite ingese ni igikoresho gikomeye, ariko nigikoresho kimwe gusa. Intsinzi yayo ishingiye ku gusobanukirwa kwimbitse, gufatika kumurongo wose - kuva ifu kugeza igice cyacumuye - no gusuzuma mubyukuri niba igice cyashushanyije gikwiye mubikorwa. Nta bupfumu buhari, gusa siyanse yubugenzuzi bwinshi hamwe nibintu byinshi byegeranijwe, rimwe na rimwe bigoye gutsindwa, ubwenge bwamaduka.
