I kēia mau makahiki i hala iho nei, ʻo kakaʻina hana hoʻoheheʻe micro-metal (μ-MIM)ua hoʻomohala ʻia me ka pahuhopu o ka hana ʻana i nā metala a me nā mea hiki ke hoʻohana ʻia no ka hana nui o nā micro-parts a me nā micro-structure surfaces. Hoʻonui nui ʻo μ-MIM i ka loaʻa ʻana o nā metala a me nā alloys no nā micro-applications, e like me nā mea hou me ke kūpaʻa wela kiʻekiʻe, ka ikaika a me ka paʻakikī, a me ka conductivity thermal a me ka magnetism.

Eia hou, ke hoʻohālikelike ʻia me ka plastic micro-injection molding, ʻo ke kaʻina hana bimetal i hoʻomohala ʻia e ka μ-MIM e hiki ai i ʻelua mau mea metala ʻokoʻa ke hoʻopili pū ʻia (bimetal co-injection) i ka wā o ke kaʻina hana hoʻoheheʻe.

1. MIM Māhele ʻelua (2C-MIM)

He porous ka ʻili a he ʻeleʻele ke kumu o loko

Ma ke ʻano o ka hana ʻana i nā ʻāpana bimetallic, ua hoʻomohala nā kānaka i ke kaʻina hana 2C-MIM (Two-Component MIM). ʻO ka pōmaikaʻi nui o ke kaʻina hana 2C-MIM ʻo ia ka hiki ke hoʻohui pono ʻia ʻelua mau mea me nā waiwai like ʻole i kahi kaʻina hana hoʻokahi, no laila e hōʻemi ana i nā hana hui hope (e like me ka welding, riveting, fastening assembly, etc.).

ʻO nā ʻāpana i hiki ke hana ʻia e 2C-MIM mai nā ʻāpana hollow me nā hale paʻakikī o loko a hiki i nā mea hiki ke wehe.

ʻO ka pahuhopu o nā noiʻi a pau, ʻo ia ka hana ʻana i nā ʻāpana ʻenekinia i hoʻonui ʻia i ke kumukūʻai kūpono. No nā ʻāpana maʻalahi e ʻaʻahu, hiki iā ʻoe ke hoʻoikaika i nā ʻāpana koʻikoʻi e like me ka ʻili friction me nā mea ʻoi aku ka paʻakikī a ʻoi aku paha ka pale ʻana, a me nā ʻāpana kūkulu ʻē aʻe me nā mea kūʻai haʻahaʻa.

No ka hana ʻana i nā ʻāpana bimetal, ʻaʻole lawa ka hoʻomaopopo ʻana i ke ʻano o ka hoʻoheheʻe ʻia ʻana o nā mea injection ʻelua, ʻo ke kī ʻo ia e hiki ke hoʻopaʻa ʻia nā mea ʻelua i loko o ka umu hoʻokahi a me ka lewa sintering like. No ka mea, ʻaʻole like ka emi ʻana o nā ʻāpana ʻelua i ka wā o ka sintering, hiki ke alakaʻi i ka delamination a i ʻole ka haki ʻana. A i ka wā i hoʻokumu ʻia ai kahi ʻāpana pōʻino, hiki i nā mea i hoʻohui ʻia ke pālahalaha ma ka palena, e hōʻemi ana i nā waiwai o ka mea.

Kiʻi 17-4PH/316L mea hoʻoheheʻe tensile composite i hoʻomākaukau ʻia e ka hui pū ʻana.

Ma ka hoʻonohonoho ʻana i nā mea machining, ʻoi aku ka maikaʻi o nā ʻāpana 2C-MIM. Ma muli o kona mana kūʻokoʻa e hana i kahi ʻāpana me nā waiwai ʻokoʻa me ka ʻole o ka hana hui, ʻo ke kaʻina hana 2C-MIM e hoʻonui i ka mākeke noi o ka ʻoihana MIM.

Inā ʻoi aku ka nui o ka nui o ka pauka ma lalo o 1um, pono e hoʻohana ʻia nā mea injection kūikawā e hoʻololi i nā pilikia i hoʻokumu ʻia e ka ʻili nui o ka ʻili.hoʻoheheʻe pauda a me ka degreasing.

2. ʻO ke kaʻina hana hoʻoheheʻe ʻia ʻana o ka metala micro (μ-MIM)

Microinjection stainless steel pāʻani pāʻani

Ke lilo nei nā huahana a me nā ʻōnaehana i mea liʻiliʻi, ʻo ia ka mea e liʻiliʻi a liʻiliʻi nā ʻāpana hana a me nā hana i nā ʻōnaehana paʻakikī.

ʻAʻole pono kēia i ka hoʻohana wale ʻana i nā mea kiʻekiʻe me nā waiwai kino kūpono, akā i nā hiʻohiʻona micro-miniaturized geometric i mea e hoʻonui ai i ka nui o nā hana i hoʻohui ʻia.

No laila, pono e hoʻomohala i nā ʻano hana kūpono a hilinaʻi no ka hana ʻana i nā micro-parts a i ʻole micro-structure ʻāpana, a hiki ke hoʻohana ʻia nā ʻāpana micro-structure i hana ʻia me μ-MIM e hoʻololi i nā ʻāpana plastik e loaʻa ai nā pono o nā waiwai mechanical, corrosion resistance a i ʻole nā ​​​​mea wela kiʻekiʻe o nā mea metala.

ʻO ka holomua o kēia kaʻina hana hana hou e pili ana i ka palena o kāna kaʻina hana hoʻokūkū e nā mea machinable a i ʻole ka mana hana nui, a ʻaʻohe mea ʻē aʻe i ka μ-MIM.

ʻO ka ʻenehana LIGA (kahi hui ʻana o ka lithography a me ka electroforming) kūpono wale nō no ka geometry 2D, a ua kaupalena ʻia e ka electroforming e pili ana i ke koho ʻana i nā mea.

ʻO nā ʻano hana ʻē aʻe, e like me nā ʻano hana micro-manufacturing electrochemical, micro-milling a me micro-grinding, mai ka ʻoihana microelectronics kumu silicon a loaʻa iā lākou ka hiki ke hoʻoponopono i nā hiʻohiʻona liʻiliʻi e like me ka 1μm, akā ʻaʻole kūpono lākou no ka hana nui oʻāpana 3D.

I kēia manawa, hiki i nā ʻāpana micro i hana ʻia me μ-MIM ka liʻiliʻi e like me ka 5μm i ka nui hiʻohiʻona. Eia nō naʻe, i mea e hoʻokō pono ai i ka hana, e like me ka mālama ʻana i ke ʻano e like me nā ʻano kahe a i ʻole nā ​​ʻāpana, ua hoʻomohala ʻia nā mea injection kūikawā i hiki loa i ka submicron a i ʻole nanometer i koi ʻia no μ-MIM.

Ma keʻano laulā, no nā ʻāpana liʻiliʻi, hiki i ka MIM ke hana hou i nā hiʻohiʻona ma kahi o 10 mau manawa o ka nui o ka nui o nā ʻāpana, kūpono loa ia no nā ʻāpana micro, inā makemake ʻoe e hana i nā hiʻohiʻona liʻiliʻi, pono ʻoe e kau i kahi pauka liʻiliʻi. I kēia manawa, ʻo 1μm ka pauka metala i loaʻa. ʻAʻole hiki ke hana i nā pauka i loko o kēia ʻano nui o nā ʻāpana (e laʻa, Ti), ʻoiai ʻoi aku ka maʻalahi o nā pauka metala ʻē aʻe me ka vaporization aerosol kūikawā (e laʻa, ke kila kila).

Inā ʻoi aku ka nui o ka nui o ka pauka ma lalo o 1um, pono e hoʻohana ʻia nā mea injection kūikawā e hoʻololi i nā pilikia i hoʻokumu ʻia e ka nui o ka ʻili o ka pauka injection molding a degreasing.

Kiʻi microinjection mea kila kila a me ka impeller

I kēia manawa, aia nō ʻo μ-MIM i ka pae incubation a ke ulu nui nei e like me ke kaʻina hana 2C-MIM. ʻO ka mea mua, aia nā kaʻina hana ʻelua i kēia manawa, akā ke hele nei lāua ʻelua i ka ʻenehana rollout a me nā haʻawina kūpono no nā ʻano micro-parts a i ʻole micro-structural ʻāpana.

ʻO ka noiʻi hoʻokūkū mua a me nā pahuhopu hoʻomohala he mea koʻikoʻi i ko lākou ala i ka kūleʻa o ka mākeke, akā ma o ka hoʻomohala ʻana i nā mea hana a me nā kaʻina hana e pili ana i nā hiki o 2C-μ-MIM i ka ʻoihana, i hui pū ʻia me ka hoʻonaʻauao o nā ʻenekinia a me nā ʻenehana, hiki ke hoʻokō ʻia nā holomua maoli.

I loko o nā mahina ʻeono i hala iho nei, me ka hoʻohana ʻana i ke aniani ceramic a me 3D i nā kelepona paʻalima e hoʻonui nui ʻia ka nānā ʻana, ua nui nō hoʻi nā aniani 3D ʻaoʻao ʻelua a me nā hiʻohiʻona hana ceramic. ʻOi aku ka nui o nā ʻoihana i kēia ʻoihana, e hōʻike ana i ka ulu ʻana o hoʻokahi haneli pua, kekahi mau ʻenehana hou, nā kaʻina hana hou, nā mea hou i hoʻomohala ʻia, e like me: stainless steel, titanium alloy, MIM frame, ceramic back cover, kaʻina hana e like me, ke aniani hoʻonaninani kaʻina hoʻomohala ʻana i ka hoʻomohala ʻana i ke kaʻina hana, ink spray hou kaʻina hana, paʻi a me nā antenna fusion; Pehea e hoʻomaikaʻi ai i ka helu 3D aniani pass rate, hoʻemi i ka hoʻohana ʻana i ka ikehu, a hoʻomaikaʻi i ka pono i lilo i pilikia paʻakikī no ka ʻoihana holoʻokoʻa.

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