Reka tuganire kuri MIM. Gutera inshinge. Niba umaze igihe kinini ukora inganda zihagije, wunvise ikibuga: Nukubumba inshinge za plastike, ariko kubwibyuma! Ngiyo umurongo wa brochure umurongo, imwe igurisha imashini ikabona ubuyobozi bushimishijwe. Ukuri, umunsi-kuwundi gusya, ni kure cyane, birenze, kandi mvugishije ukuri, birashimishije. Ntabwo ari amarozi. Nibyino byitondewe byifu, polymer, ubushyuhe, nigitutu, kandi ikinyuranyo hagati ya prototype ifatika hamwe numusaruro mwinshi utanga umusaruro niho ukorera imirongo yawe. Amaduka menshi cyane asimbuka yibwira ko ari swap itaziguye yo gushora imari cyangwa gutunganya CNC, kandi niho hava icyiciro cya mbere cyibicuruzwa bihenze, byacumuye.
Kugaburira Ibiryo: Byose Bitangirana na Granule
Umutima wa MIM ntabwo ari imashini ibumba; ni amatungo. Iyo mvange ivanze ya ultra-nziza yicyuma cyifu na sisitemu igizwe nibice byinshi. Nabonye imishinga ihagaze hano. Ntushobora gufata ifu ya 316L gusa hamwe nigishashara rusange cya polymer hanyuma ugategereza gutsinda. Ingano yubunini bwagabanijwe, imiterere, ibirimo ogisijeni - itegeka ubucucike bwa nyuma bwumucyo no guhagarara neza. Umufatanyabikorwa nka Qingdao Qiangsenyuan Technology (QSY) abona ibi. Hamwe namateka yabo yimbitse mugushora imari hamwe na alloys, basobanukiwe imyitwarire yibintu munsi yubushyuhe. Iyo bakuye ibiryo kubice byubuvuzi bwa cobalt-chrome, ntabwo bagura ibicuruzwa gusa; barimo gusuzuma igisubizo cyacyo no gucumura bishingiye kumyaka mirongo yo gukora ibisa nkibi bidasanzwe.
Na binder? Nibisebo byigihe gito. Akazi kayo nugutemba neza mugihe cyo gutera inshinge, hanyuma bikazimangana rwose utagoretse igice cyijimye cyoroshye. Guhitamo ibitari byo biganisha ku nenge zikomeye: guhuha, gusinzira, cyangwa guturika kw'ibiza mu gihe cyo gutanga ubushyuhe. Ni resept uhindura imyaka myinshi. Uwiteka MIM inzira ntabwo ibabarira hano-0.5% gutandukana muburyo bwa binder irashobora gukuraho imitwaro yose yitanura.
Ibi twabyize inzira igoye kumazu ya sensororo yo hambere. Geometrie yari igoye, ikikijwe n'inkuta. Abatanga ibiryo byo mu cyiciro cya mbere batwijeje ko binder isanzwe ari rusange. Ibice byabumbwe byasaga neza. Noneho, murwego rwa catalitiki yo gusiba, barabyimbye nka popcorn. Gukuraho binder kinetics byari bibi kubice byambukiranya igice. Tugomba gusubira inyuma, dukorana ninzobere mu kudoda sisitemu. Nicyo giciro cyihishe. Ukuri MIM ubuhanga bukunze kubaho muri siyansi yubumenyi, ntabwo ikora mubinyamakuru.
Gushushanya: Aho Plastiki Ihurira Icyuma (Kandi Ibibazo Bitangira)
Nibyiza, ufite ibiryo byawe. Noneho uratera. Ibi byunvikana mububiko bwa plastike, ariko hamwe nibitandukaniro bikomeye. Ubushonga bwashonga buri hejuru, bwumva ubushyuhe. Urwana no gutandukanya ifu-binder (inzozi zitwa gusinzira) niba ibipimo byazimye. Igikoresho gikeneye kubara hejuru cyane, kandi kidahuje, kugabanuka nyuma - akenshi 15-20%, ntabwo 0.5% uteganya muri plastiki cyangwa gutunganya.
Igishushanyo cy'irembo ni ngombwa. Ukeneye kuruhuka neza, ariko ibikoresho birababaje. Nabonye ibyuma bishaje bishaje vuba MIM ibiryo kuruta na nylon yuzuye ibirahuri. Venting ni iyindi nyamaswa. Umwuka wafashwe ntabwo utera gusa kwisiga; irashobora gukora ubucucike bugenda buhinduka aho gutangirira nyuma yo gucumura. Nibikorwa bito bito aho ibintu bitandukana. Igice kibumbwe neza nigice cyicyatsi gusa, cyuzuye binder. Ifite imbaraga za foromaje ikomeye. Kubikemura bisaba ibice byihariye; ihererekanyabubasha rimwe hanyuma ukabona inenge isa nintoki yerekana gusa nyuma yicyaha.
Aha niho amaduka ahuriweho afite aho agarukira. Reba imiterere ya QSY (https://www.tsingtaocnc.com). Ntabwo ari a gusa MIM inzu. Bafite casting na CNC gutunganya murugo. Kuki ibyo bifite akamaro? Kuberako barashobora gushushanya ibishushanyo hamwe no kugoreka icyaha hamwe nintego ya nyuma ya net-shusho mubitekerezo uhereye kumunsi wambere. Basobanukiwe ninguni zinguni, inzibacyuho yurukuta, hamwe nibitekerezo biterwa no gukora ibyuma, ntabwo ari plastike gusa. Itsinda ryabo rya CNC rirashobora kandi gukora imashini yinjiza muburyo bwo kwihanganira bikabije, hanyuma, igakora imashini ya kabiri mugice cyacumuye niba ikintu gikomeye kibikeneye. Uku kwishyira hamwe guhagaritse kugabanya umukino wamakosa hagati yo kubumba, gucumura, no gutunganya ibicuruzwa.
Urugendo rurerure, Buhoro Bunyuze mu Itanura
Gucumura. Icyiciro cyo gukora cyangwa kumena. Aha niho binder ikurwaho hanyuma ibyuma bigahinduka. Numunsi wumunsi wumuriro wumuriro, ntabwo utetse vuba. Gutanga mbere, buhoro, kugirango wirinde igitutu kwiyongera imbere mubice. Noneho ubushyuhe burazamuka kugera hafi yicyuma. Kugenzura ikirere ni byose. Akantu gato kameneka ka ogisijeni karashobora guhindura igice cyicyuma kitagira umwanda, cyangiza ruswa yacyo. Kubintu byoroshye nka titanium cyangwa se superalloys ishingiye kuri nikel, ikirere cy itanura kigomba kuba icyuho cyiza cyangwa argon igenzurwa cyane.
Ibice byicara kumurongo wububiko, bigomba kuba byiza kandi bihuje imiti. Ndibuka icyiciro cya seti ya alumina yari ifite ubuso bwanduye. Ku bushyuhe bwinshi, bakiriye ibice bya Inconel, babisudira kuri setter. Igihombo cyose. Umwirondoro w'itanura - igipimo cya ramp, ibihe byo gushiramo - bigomba gutezwa imbere kuri buri gice cya geometrie na alloy. Igice kinini kandi igice cyoroshye kumurongo umwe bizacumura kubiciro bitandukanye, bitera intambara. Urwanya ibi hamwe nubuhanga bwubwenge rimwe na rimwe, cyangwa mugushushanya igice kugirango uburebure bwurukuta rumwe, bidashoboka buri gihe.
Nicyiciro aho QSY yimyaka 30 muri casting yishura inyungu. Basobanukiwe nimpinduka zibyuma, gukura kwimbuto, nuburyo bwo gucunga ubushyuhe kugirango bagabanye imihangayiko isigaye. Amahame arashobora kwimurwa hagati yo gushora imari na MIM gucumura. Bazi ibiba kuri cobalt-chrome kuri 1300 ° C. Ubwo bumenyi bw'inzego burinda ibigeragezo byinshi-no-kwibeshya.
Kugenzura Ukuri: Nyuma yo Gutunganya na Net-Imiterere Ikinyoma
Dore ibanga ryanduye rya MIM: Net-imiterere nijambo ryo kwamamaza. Kubice byinshi bikora, ni hafi-net-shusho. Nyuma yo gucumura, hafi buri gihe ukenera nyuma yo gutunganywa. Hariho urumuri rwinshi kugirango rucike. Kwihanganira ibipimo bishobora kuba +/- 0.3% kurwego rwacumuye, ariko kuri bore ikeneye kuba H7 ikwiye? Birashoboka ko ugiye kuyikora. EDM irashobora gukenerwa kubintu bito, byuzuye bigoretse.
Ubuso burangirira neza mu itanura ni matte, ingano. Kuri porogaramu nyinshi, nibyiza. Kubintu bitwara ibintu bikenera inzira yoroshye, uzakenera gusya cyangwa amashanyarazi. Ibi byongera ikiguzi nigihe. Mugihe cyo gusuzuma MIM, ugomba guteganya kuriyi mirimo yisumbuye. Ntabwo ari intege nke zikorwa; nukuri kwubuhanga. Intego ni ukugabanya, kubona 95% ya geometrie uhereye kumurongo, bityo rero igihe cyawe cyo gutunganya CNC (nigiciro) kumurongo uhenze cyane ni gito.
Nibikorwa bya QSY. Igice kiva mu itanura ryacumuye. QC yabo irabigenzura. Niba ibintu bike byingenzi bya datum bikeneye gukomera, bihita bijya mu ishami ryabo rya CNC. Nta gutinda kohereza ibicuruzwa, nta tegeko rishya ryo kugura, nta kibazo cy'amakosa y'itumanaho. Bafata igice cyacumuye nkibisanzwe, kandi ubuhanga bwabo bwo gutunganya buva mubindi bice burakurikizwa. Ihindura net-imiterere yimigani igenzurwa, ikora neza intambwe ebyiri zo gukora.
Iyo MIM Yumvise (Kandi Iyo Atabikora)
Noneho, nyuma yibi byose, MIM imurikira he? Ntabwo ari kuri byose. Nibyiza cyane murwego rwo hejuru, rugoye, ruto-ruciriritse rw'icyuma. Tekereza ibikoresho byimbunda, ibikoresho byo kubaga umusaya, agasanduku ka drone, ibyuma bikomeye. Ibice byaba ari inzozi kumashini kuva bikomeye, cyangwa aho gushora imari bidashobora gufata neza cyangwa inkuta zoroshye. Ubukungu bukora iyo urimo gukora ibihumbi, ntabwo ari magana, bitewe nibikoresho byambere hamwe nigiciro cyiterambere.
Irwana nibice binini cyane (ingano yubunini bwitanura), imiterere yoroshye cyane (kuyikora gusa), cyangwa hamwe nudusimba tumwe na tumwe bigoye cyane gucumura cyane. Ntibishobora kandi kuba amahitamo meza niba ibikoresho byawe ari ibyuma bisanzwe bya karubone kandi ukeneye ibice 500 gusa; gukata lazeri no gusudira birashobora kuba bihendutse.
Icyangombwa nukwitabira hakiri kare. Nturungike gusa gushushanya igice cyashushanijwe gushushanya hanyuma ubaze a MIM amagambo. Igishushanyo gikeneye kunozwa kubikorwa - urukuta rumwe, radiyo itanga ubuntu, uzirikana irembo hamwe na pin ya ejector. Umufatanyabikorwa mwiza azakora Igishushanyo cya MIM (DFM). Nkurikije ibyo nabonye mubikorwa nka QSY, iryo suzuma rimenyeshwa nubushobozi bwabo bwuzuye bwo gukora ibyuma. Bashobora gutanga igitekerezo cyo kuvanga: MIM intangarugero idasanzwe yibice byigice, hanyuma imashini isobekeranye kuva mukibari cyakozwe hanyuma ugacana cyangwa ukayisudira. Ibyo nibitekerezo bifatika, bifite uburambe.
MIM ntabwo ari impinduramatwara isimbuza byose. Nibindi bikoresho bikomeye mubikoresho byo gukora. Agaciro kayo ntigafungurwa nukubona ko ari igitangaza cyihariye, ahubwo nukuyihuza mugusobanukirwa kwinshi kwibyuma, uko bitwara, nuburyo bwo kubikora. Amaduka abibona neza niyo, nka QSY, yubaha urugendo rwose kuva ifu kugeza igice cyarangiye, kandi bafite inkovu-hamwe nubutsinzi-kuva kugendera muriyi nzira nyayo.
