Ndị ọkà mmụta sayensị na Mahadum Teknụzụ Teknụzụ Michigan, Houghton ejirila ihe mkpofu osisi rụọ 3D nke ọma.
E bipụtara ihe ịga nke ọma n'akwụkwọ nyocha nke onye mmeri mepere emepe Joshua Pearce kwadoro.Akwụkwọ akụkọ ahụ nyochara ohere nke ibugharị ihe mkpofu arịa ụlọ n'ime filament osisi iji belata mmetụta gburugburu ebe mkpofu osisi.
Dị ka akwụkwọ akụkọ ahụ si kwuo, ụlọ ọrụ ngwá ụlọ na Michigan naanị na-emepụta ihe karịrị tọn 150 nke ihe mkpofu osisi kwa ụbọchị.
N'ime usoro nzọụkwụ anọ, ndị ọkà mmụta sayensị gosipụtara na ọ ga-ekwe omume ịmepụta 3D na-ebipụta filament osisi na ngwakọta nke ihe mkpofu osisi na plastik PLA.Ngwakọta nke ihe abụọ a ka amara nke ọma dị ka osisi-plastic-composite (WPC).
Na nzọụkwụ mbụ, a na-enweta ihe mkpofu osisi site na ụlọ ọrụ na-emepụta ngwá ụlọ dị iche iche na Michigan.Ihe mkpofu ahụ gụnyere slabs siri ike na sawdust nke MDF, LDF, na melamine.
Ndị a siri ike slabs na sawdust e belatara na micro-ọnụ ọgụgụ larịị maka nkwadebe nke WPC filament.A na-egweri ihe mkpofu ahụ, kụchie ya n'obere osisi wee sụchaa ya site na iji ngwaọrụ na-eme ka ikuku na-ama jijiji, bụ nke jiri ntupu 80-micron mesh.
Ka ọ na-erule njedebe nke usoro a, mkpofu osisi dị na steeti ntụ ntụ nwere ntụ ọka ọka granular.A na-akpọzi ihe ahụ ugbu a dị ka “ụtụ mkpofu osisi.”
Na nzọụkwụ ọzọ, PLA dị njikere ijikọta ya na ntụ ntụ ntụ.A na-eme ka pellets PLA dị ọkụ na 210C ruo mgbe ha nwere ike ịmalite.Agbakwunyere ntụ ntụ osisi ahụ na ngwakọta PLA gbazere na osisi dịgasị iche na pasentị arọ PLA (wt%) n'etiti 10wt%-40wt% ntụ ntụ ntụ.
A na-etinyekwa ihe ahụ siri ike ọzọ n'ime igwe nkụ iji kwadebe maka ebe a na-emepe emepe recyclebot, ihe mgbapụta rọba maka ime filament.
The filament ekepụtara bụ 1.65mm, thinner na dayameta karịa ọkọlọtọ 3D filament dị na ahịa, ya bụ 1.75mm.
A nwalere filament osisi ahụ site n'ịkpụ ihe dị iche iche, dị ka kube osisi, ọnụ ụzọ, na aka drawer.N'ihi ihe eji arụ ọrụ nke filament osisi, e mere mgbanwe na Delta RepRap na Re: 3D Gigabot v. GB2 3D ndị na-ebi akwụkwọ na-eji na ọmụmụ ihe.Mgbanwe ndị ahụ gụnyere imegharị extruder na ịchịkwa ọsọ nke mbipụta.
Ịbipụta osisi na okpomọkụ dị mma bụkwa ihe dị mkpa n'ihi na okpomọkụ dị elu nwere ike ịcha osisi ma mechie oghere.N'okwu a, a na-ebipụta filament osisi na 185C.
Ndị nchọpụta ahụ gosipụtara na ọ bara uru iji ihe mkpofu osisi rụọ osisi filament.Otú ọ dị, ha welitere isi ihe ndị dị mkpa maka ọmụmụ ihe n'ọdịnihu.Ndị a gụnyere mmetụta akụ na ụba na gburugburu ebe obibi, nkọwa nke ihe eji arụ ọrụ, ohere nke mmepụta mmepụta ihe.
Akwụkwọ akụkọ ahụ kwubiri, sị: “Ọmụmụ ihe a egosipụtala usoro teknụzụ ga-ekwe omume iji bulie ihe mkpofu osisi n'ime akụkụ 3-D enwere ike iji rụọ ọrụ maka ụlọ ọrụ arịa ụlọ.Site n'ịgwakọta pellets PLA na ihe mkpofu osisi emegharịgharịrị emebere ya na dayameta nke 1.65± 0.10 mm wee bipụta obere akụkụ ule dị iche iche.Usoro a ka emepụtara na ụlọ nyocha nwere ike ịbawanye elu iji gboo mkpa ụlọ ọrụ dịka usoro usoro na-enweghị mgbagwoju anya.E kere obere batches nke 40wt% osisi, mana gosipụtara mbelata ugboro ugboro, ebe batches nke 30wt% osisi gosipụtara nkwa kacha mma n'ụzọ dị mfe iji.”
Akpọrọ akwụkwọ nchọcha a tụlere n'isiokwu a n'isiokwu a bụ nke a na-akpọ ihe mkpofu ihe eji ebigharị 3-D.Ọ bụ Adam M. Pringle, Mark Rudnicki na Joshua Pearce dekọtara ya.
Maka ozi ndị ọzọ gbasara mmepe kachasị ọhụrụ na mbipụta 3D, denye aha na akwụkwọ akụkọ mbipụta 3D anyị.Sorokwa anyị na Facebook na Twitter.
Oge nzipu: Feb-07-2020