Ko te Hoahoa Mātai (DOE) e huri ana i te ara e hoahoa ana i ngā tohu tā, ka neke mai i te whakatau takotoranga ki tētahi ara anō he mea whakarerekē ake. Ina tātari ngā mātai pūkaha i ngā mea pērā i ngā wāhi matawai, ngā tautuhinga totohua, me te tere o te mātai i ngā wāhanga i roto i ngā tātari āta whakarite, ka taea e rātou te mōhio i te mea e nui ana mō ngā hua pai kia kore ai rātou e pau i te wā ki ngā ara kore hua. E ai ki ētahi rangahau i tākarotia taua rangi e te Society of Manufacturing Engineers, i kitea e ngā kamupene i whakamāori tēnei tikanga i te iti haere o te parae matērihia e te 20%, he mea hira tēnei ina whakarārangihia ki ngā tikanga tāpiri-tāpiri o mua. Ko te mea e nui ana a DOE ko tana uara ki te kite i ērā hononga ngaro i waenganui i ngā pūtake rerekē o te tikanga e kore e kitea e ngā tātari kotahi-i-te-wā-anō. Ka kitea e te nuinga o ngā toihenga ko ēnei māramatanga he uara atu i te whakaritenga atamira.
Ko ngā kaihanga matua kei te tīmata ki te whakauru i te Hoahoa Mātai Tauira (DOE) ki ngā pūmanawa CAD me CAE tēnei rā. E āwhina ana tēnei i ngā mātai arataki kia whakarerekē i ngā wāhi tūmatanui i te wā e whanaketia ana ngā mātai mō te huringa. Ina honoa ngā kamupene i ngā whakamātau ā-hinengaro i te pēhea ka mahi ngā wae, me ngā whakamātau pono, ka pakari noa rātou i te 40% o te wā e hiahiatia ana kia whakamāoritia ngā mātai hou. Hei tauira, ko ngā tīma mātai inihana e mahi tahi ana, e whakauru ana i ngā tūwāhi ki ngā ara whakamaroke mā ēnei tikanga tauhokohoko e kiia nei ko ngā matarangi hautau. Te putanga? He toronga ōrite ake o ngā matapae me te iti ake i ngā wāhi takirua hiko i ngā hua mutunga, arā he iti ake ngā hapa i muri ake.
I te whiwhi i te kounga iti ake, i angitu tētahi kaihanga hua mōhinu kikokiko nui mā te whakamahi i te DOE ki tōna pāpāhu 64-puna. Mā te whakahaere i ngā whakamātau 15 e rerekē ana i ngā diameita karu me ngā ara rere witi, i whanaketia e ngā inihini te āhua o te kaipūrere kia herea te rereinga. Ngā hua:
Mō ngā pāpāhu herenga, ko te whakaurunga maru o te DOE e whakaatu ana he matua herekore:
| Paerau | Ngā Tūrangi Kua Whakamātauria | Te Inenga Whakamāoritanga |
|---|---|---|
| 1 | Te taurite karu | Te rerekētanga o te tokiwha puna |
| 2 | Te ūrite o te hūmata | Te whakarahi i te wāhi o te wae |
| 3 | Te wā pūpahi | Te tōtika o te mata |
I te aronga whai māia nei kaite kore te take kua riro i ngā hua o ngā hononga motuka umanga 47% e ai ki ngā tikanga tohutohu whakamana.
Kei te tono inaianei te takiwā motuka i te DOE mō ngā wae atamira Class A, me te 68% o ngā kaiwhakarato rāwiti e hiahiatia ana te pouaka ā-motu mō ngā pāpā tapa waho (SME 2023). He nui te painga a ngā whare pūhiko vaitau hiko mai i te āhua o te DOE ki te āhua i te kaha o te hanganga me ngā here whenua iti.
Ko te tika i te pātene me te rūnanga o ngā kaihoko e iti ai te whakaputunga o ngā rauemi, e 12 ki te 18 ōrau pea, i te wā e pupuri ana i te rere o te mātai mā te totohu. Ka āki ai ngā rūnanga ina tukuna tika, ka āwhina i te heke i ngā pēpihi pēpihi i waenganui i ngā karuaha rerekē. He nui tēnei ina mahi ana ki ngā totohu anuanu e hāngai ana ki ngā wāhanga herenga pērā i ngā kono hiko e whakamahia ana i ngā motokā. Nō ngā whanaketanga o te hanga 3D, ka taea e ngā kaihanga te hanga i ngā rūnanga āhua e arataki ana i te ara e hiahia ana te matāpae kua runga ai te rere. Kāore ēnei hoahoa hou e whai kōpiti whakarewa kei reira ka pakaru te pātini, ka makariri hoki, ko te raru nui i ngā hoahoa totohu tawhito.
Ko ngā aronga matua o te ahumāra e āta hui ana i ngā wā mōhio 20% tere ake mā ngā ara whakākā e āhua rite ana ki te āhua o ngā wāhanga. I te tātai māmā a 2023 mō ngā pāpārahi taputapu hauora, i whakaatuia ko te panonitanga o te wāhiarata ±1.5°C ki te whakapaipai ake i te whakākā i te nuinga o ngā puranga ±8.2°C i ngā hoahoa takotoranga. Ko ngā taputapu whakamātau matatau ināianei e āta whakaarotia ana i ngā wāhi mahana ki te 94% te pono, e āwhina ai i te whakapiapia anuanu o ngā ara i te wā o te hoahoa.
Hei whakaputa i ngā wā mōhio 29 hekenga (±0.4 hekenga) ngā kaiwhakaputa motuka e whakamahi ana i te toia raraunga kia tika ai mō te whakaputa kaha i ngā parihau neke ake i te 50,000. Ko te tūtohi i raro nei e ōwekenga ana i ngā inenga mahi:
| Aronga Hoahoa | Panonitanga Wā Kī | Tau Utu |
|---|---|---|
| Takoto Kāore i Torea | ±8.2 hekenga | 6.8% |
| Whakamātauria-Whakapaipaitia | ±2.9 hekenga | 1.2% |
Whakaawatea ngā kaihanga mōhio i ngā tauira mariko mā roto i ngā whakamātautau tino tuatoru:
Ko tēnei ara huarahi e iti ana te maha o ngā whakamātautau umanga 40% i te nuinga o ngā tikanga whakaturuki.
I whakauruhia hōhonu ake ngā huarahi hōu ki te hangarau puna hauwera, e whakahaere ana i te penapena uara 18% mā ngā noho tāwhaiaro, ka tino pai ai mō ngā haerenga e neke ake ana i te 500,000 mātā. Mō ngā kaupapa heke iho i te 100,000 wae, kei te tino tika tonu ngā puna makariri ahakoa he 8–12% te nui ake o te parae matū. Ko te wā tonu e ū ana te take ko te 290,000 mātā mō ngā waeātanga waewae (50–150g te tāroa o te tīkanga).
Ko ngā taputapu hou whai mārama ai ngā inijiniara ki te āhua o te pēhea ka uru ngā matapae ki te hanganga. E ai ki ngā ripōtere tāpoi hou mai i te tau 2023, kuaitea e ngā kamupene e whakamahi ana i ēnei punaha te whakamātau arataki utu nui pea 40%. Ka titiro te pūnaha ki ngā mea pērā i te rere o te paraihe ki roto i ngā tohu, kei hea ka hui te wera, me ngā wāhi e taea ai te toto mana e hāngai ai ngā raruraru i muri ake nei. Āwhina ēnei māramatanga ki te aukati i ngā raru noa pērā i ngā wae tapa kīkau, i ērā tohu tonge kuaitea e rupeke ana i te kounga o ngā hua. Mā te hinonga anuanu hātepe inihana inihana e wātea ana inaianei, ka taea e ngā hoahoa te whakamātau i te tata ki te tekau mā rima ngā momo matapae rerekē ki te ao matihiko i mua i te takotoranga o tētahi waewae ki te mātā. Arā, ka tere ake ngā hua ki te mākepia engari anō ka tutuki i ngā paerewa katoa o te kounga.
Mā te whakaatu i ngā rerekē toto me ngā tere mata rere, ka kitea e te pūnaha ngā mōrearea mō:
I te 62% te penapena i te kamupene hua mātai hauora i ngā whakakore kākāhua mā te whakamātau i ngā whiringa kuaha e waru ki te digita. I huri ngā kuaha ki ngā wāhi nehe ake te tapa, kia ūrite te tōpara tōpara—ka mahi i ngā panonitanga i roto i ngā rā e toru engari i ngā wiki e whā ki ngā tikanga takotoranga.
Kua tīmata ngā kaiwhakarato matua ki te tuku i ngā taputapu pūkete mā te tirotiro, e āwhina ana i ngā inijini mātāpuna me ngā kaihoahoa hua ki te mahi tahi mō te wā kotahi. Ka iti ake ngā wāhi whakamātau ki te 55% mā te rorohiko paopao tukutuku, ā, kua ripoata tētahi kaiwhakarato hangarau CAE matua he nui ake i te 300 ngā kaiwhililahi e whakapai haere ana i ngā pūnaha mātāpuna maha.
Ina whakamahia e ngā kaihoahoa te DFM (Hoahoa mō te Tukanga Hanga) mai i te tīmatanga o kaupapa hanga pāpā, ka waihangahia e rātou ngā hua e pai ana ki ngā taputapu hanga. Ko te tika i te nekeneke o ngā pāpāranga me te tāpiri i ngā ānga tūhono tika i te tīmatanga hei penapena moni i muri ake nei, nā te mea kāore he mea ka pakaru i te katoa me te hanga anō, i te wā e pupuri ana i te kaha o te hua mō te whakamahi i te ao tuturu. Ko ngā tohunga matua o te ahumahi e kōrero ana ki ēnei mea mā te inquiring: ko ngā hoahoa waeheke he pai ake mō katoa, nā te wehe atu i ngā tāwāhiko herekau e whakararu ana i ngā pāpā. Ā, kei te kāwa anō te whakapono ki tēnei. E ētahi rangahau e whakaatu ana ko ngā kaupapa matatoko, ina whakaurua ngā tauira CAD ki te ara e rere ai ngā matapae ki roto i ngā pāpā, ka iti ake te hiahia ki ngā panoni i ngā taputapu i te wā o te hanga, e 40% pea. Ka tika pea tēnā mena ka whakaaro koe ki te mea.
Ko te whakarere i te hoahoa hua me te rama mā ngā kaupapa matua o DFM e pa tūmate ana ki te kaha o te whakaputa. Ka taea te pēra ake i ngā wāhi rama mā te whakarite i ngā rahinga o ngā wāhanga, ā, ko te whiriwhiri āhuatanga o ngā matapae e aukati ana i ngā herenga e pā ana ki te rere i te wā o te whakauru. Hei tauira, ko ngā kaihanga motokā e matua whakatenatena ana i te tino ōrite o te tātaitanga kia pai ake te hōhonu, ka iti ake ngā wā hōpoko engari kāore i te tino paku ake te kounga o ngā wāhanga.
Kei te pāwhara te māke e whakamahi ana i ngā taputapu matapihi ki te hanga i ngā taputapu iti ake, hauhake ake i te koremate o te rama. Ina hiahia ngā kamupene ki ērā āhua āhua pai ki ngā tuarā waea, i ngā kokoti tino tata me te kore paku noa o te takotoranga, ka hiahiatia ngā taputapu ritenga e piki ai ngā utu, ka uaua ake te whakangao. Ko ngā hua pai rawa ka puta ina mahi tahi ngā rōpū hoahoa me ngā kaihanga rama i te wā kotahi. Ānei ngā rā, ka karawhiti ngā kamupene āhuatanga ki te kōpae i ngā kaihoahoa ahumahi me ngā mēhine e rama ana i te wā kotahi i te wā o te hoahoa mō te hanga kia taea ai te kitea ko wai e pai ana engari e mahi pai ana i te hanga nui. Heoi anō te rapu i te wāhi pai pea i waenganui i te mea e mataara ana me te mea e taea ana te hanga i te nui kore moni.
Ko te pupuri i ngā pōrota e 1 ki te 3 mirimita te nui ka āki ai i ngā raru kīato me ngā tohu pēhanga, ā, ka whakapaua hoki kia tū tika ngā wāhanga. Ina heke ake te nui o ētahi wāhanga, ka maroke noa rātou i ngā wāhanga pōrota atu i te taha, ā, ko te tikanga nei ka hua ngā raru arawahe i runga i te wāhanga katoa, ā, ka whakararu i te pono o ngā nekenga. Ka taea e ngā kaihanga mātātoko o tēnei rā te eke ki ngā paerewa tino tata, pērā i te pāmamae 0.15 mm, mā te whakahaere tika i te rere o ngā matapae ki roto i te mātātoko, tae atu ki ngā wāhi e whakaputangia ana ngā ara whakamaroke. Me kaua hoki te wareware ki ngā wā e penapena ana. Ko ngā wāhanga e pōrota tonu ana ngā pōrota ka penapena wā huringa, i te waatea 18% ki te 25% ina mātai ki ngā wāhanga e mau ana ngā āhua hāwaru, āhua rerekē hoki te nui.
Ko te kōnga pūtangia o 1–3° e iti mea ai te kaha pūpāki umanga 40% i te wā e pupuri ana i ngā āhua o te wāhanga. I tētahi kaupapa hua mōrearea rahi, i iti ai te tau whakaputunga i te 32% me te wehe i te parurenga taputapu i te whakanui ake i ngā kōngata pūtangia mai i te 0.5° ki te 1.5°. He matua herekore ngā kōngata piki ake (3–5°) mō ngā mata kakara, i te wā e piki ake ai te hākinakina, e pā ai ki ngā karaihe polimeri kua kīia ki te kārihi.
E rerekē ana ngā tatau totohe mai i te 0.2% (ABS) ki te 2.5% (polypropylene), nā reira ka hiahiatia te whenua takotoranga motuhake mō te pepa. Ko ngā taputapu matua pērā i te Moldex3D e tauira ana i ngā tauira pūpahi me ngā inenga māmā e mōhiotia ai te totohe ki roto i te ±0.08 mm—he mea matua herekore mō ngā wāhanga hauora e here ana i ngā inenga tata. Ko ngā tikanga māmā i muri i te pepa anō hoki e whakapumautia ai ngā ahopae i ngā karaihe polimeri e mau wai ana pērā i te nylon.
I te whakaiti a kia 54% te pāmahana o ngā wāhi polycarbonate 0.8 mm te nui mā te whakapai ake i ngā tautohe o te rahi o te pāpā me te āhua o te karu. I te whakauru i ngā koki 2° me ngā ara hūmata kore tikanga, i heke te pakaru mai i te 12% ki te 1.7% i te wā i pupuri ai i te ISO 13485–ka puaki $380k ia tau i ngā utu hoki.
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