Kua roa ahau e mahi ana i ngā take a te kaipānui – he iti noa ngā pou hei tuhituhi māku i mua i taku hokinga atu. Mena i tukuna mai e koe he pātai ki ahau, ā, kāore au i whakautu, tēnā tatari, ko tāu pātai pea te pātai e whai ake nei. Me te maumahara ki tēnā, me whakautu tātou i te pātai.
Q: Kei te ngana mātou ki te whiriwhiri i tētahi taputapu e whakarato ana i te radius 0.09 inihi. I makahia e au he maha ngā wāhanga hei whakamātautau; ko taku whāinga he whakamahi i te tānga kotahi ki runga i ā mātou rauemi katoa. Ka taea e koe te whakaako i ahau me pēhea te whakamahi i te 0.09 inihi hei matapae i te radius piko? te radius haere?
A: Mena kei te hanga hau koe, ka taea e koe te matapae i te radius piko mā te whakarea i te whakatuwheratanga o te mate ki te ōrau i runga i te momo rauemi. He whānuitanga ōrau tō ia momo rauemi.
Hei kimi i ngā ōrau mō ētahi atu rauemi, ka taea e koe te whakarite i tō rātou kaha kume ki te kaha kume 60,000 psi o tā mātou rauemi tohutoro (te maitai hurihuri matao waro iti). Hei tauira, mēnā he 120,000 psi te kaha kume o tō rauemi hou, ka taea e koe te whakatau tata ka rua te ōrau i te paerewa, arā, tata ki te 32%.
Me tīmata tātou me tā tātou rauemi tohutoro, he rino hurihuri matao waro iti me te kaha kume o te 60,000 psi. Ko te radius hanganga hau o roto o tēnei rauemi kei waenga i te 15% me te 17% o te whakatuwheratanga o te mate, nō reira ka tīmata tātou me te uara mahi o te 16%. Nā ō rātou rerekētanga ā-roto o te rauemi, te matotoru, te pakeke, te kaha kume, me te kaha tuku tēnei awhe. He whānuitanga o ngā manawanui o ēnei āhuatanga katoa o te rauemi, nō reira kāore e taea te kimi i te ōrau tika. Kāore he rauemi e rua e ōrite ana.
Me te maumahara ki ēnei mea katoa, ka tīmata koe me te toharite o te 16%, arā, 0.16, ka whakareatia tēnā ki te matotoru o te rauemi. Nō reira, ki te mea kei te hanga koe i te rauemi A36 he nui ake i te 0.551 inihi. Me te mata e tuwhera ana, me tata ki te 0.088″ te whānui o tō piko o roto (0.551 × 0.16 = 0.088). Kātahi ka whakamahia te 0.088 hei uara e tumanakohia ana mō te whānui o te piko o roto e whakamahia ana e koe i roto i ngā tātaitanga piko me te tango piko.
Mena kei te whiwhi tonu koe i ngā rauemi mai i te kaiwhakarato kotahi, ka taea e koe te kimi i tētahi ōrau e tata atu ai koe ki te radius piko o roto e whiwhi ana koe. Mena nō ngā kaiwhakarato rerekē tō rauemi, he pai ake te waiho i te uara waenga kua tatauhia, nā te mea ka rerekē rawa ngā āhuatanga o te rauemi.
Ki te hiahia koe ki te kimi i tētahi kōhao mate e homai ai he radius piko o roto, ka taea e koe te huri i te tātai:
Mai i konei ka taea e koe te tīpako i te kōhao o te mate e tata ana ki te wātea. Kia mahara ko te whakaaro o tēnei ko te radius o roto o te piko e hiahia ana koe ki te whakatutuki he rite ki te matotoru o te rauemi e hangaia ana e koe. Mō ngā hua pai rawa atu, ngana ki te tīpako i tētahi kōhao mate he radius piko o roto e tata ana, e ōrite ana rānei ki te matotoru o te rauemi.
Ina whakaarohia ēnei āhuatanga katoa, mā te kōhao mate e whiriwhiria e koe ka hoatu te radius o roto. Me whakarite hoki kia kaua te radius poka e neke ake i te radius piko o te hau i roto i te rauemi.
Kia maumahara kāore he huarahi tino tika hei matapae i ngā radius piko ā-roto i runga i ngā taurangi rauemi katoa. He ture tika ake te whakamahi i ēnei ōrau whānui maramara. Heoi anō, me whakawhitiwhiti karere pea me te uara ōrau.
P: Nō nā tata nei i tae mai ētahi pātai mō te āheinga o te whakakume i te taputapu piko. Ahakoa kāore mātou i kite i tēnei e tupu ana me tā mātou taputapu, kei te hiahia ahau ki te mōhio ki te whānuitanga o te raruraru. E kite ana ahau mēnā he tino kume te pokepokea, ka taea e te mea takoto kau te "piri" ki te pokepokea, ā, kāore e hanga pūmau mai i tētahi wahi ki tētahi. Haunga tēnā, he āwangawanga anō kei reira?
Whakautu: Ko ngā whāriki, ngā whāriki rānei e tautoko ana i te mate, e taunekeneke ana rānei ki te turanga pēhi pēhi, kāore i te aukumetia. Ehara tēnei i te kī kāore e taea te aukume i te urunga whakapaipai. Kāore pea tēnei e tupu.
Heoi, e mano tini ngā wahi rino ririki ka taea te aukume, ahakoa he wahi rakau i te tukanga tā, he ine pūtoro rānei. He aha te nui o tēnei raruraru? He tino nui. He aha ai? Ki te kore e mau i tēnei wahi rauemi iti i te wā tika, ka taea e ia te keri ki roto i te mata mahi o te moenga, ka hanga he wāhi ngoikore. Ki te matotoru, ki te nui rānei te wahi aukume, ka taea e ia te piki ake o te rauemi moenga ki ngā taha o te whakaurunga, ka meinga te pereti turanga kia noho koretake, kia ōrite rānei, ka pā ki te kounga o te wahi e hangaia ana.
Q: I roto i tō tuhinga Me Pēhea te Koi o ngā Āwhio Hau, i whakahuatia e koe te tātai: Te Taumaha o te Punch = Te Horahanga o te Hu x Te Matotoru o te Rauemi x 25 x Te Tauwehe Rauemi. Nō hea te 25 i roto i tēnei whārite?
A: I tangohia tēnei tātai mai i te Utauta Wilson, ā, e whakamahia ana hei tatau i te taumaha o te kōhao, kāore he pānga ki te hanga; i whakarerekētia e au hei whakatau i te wāhi e piki ake ai te piko. Ko te uara o te 25 i roto i te tātai e pā ana ki te kaha tuku o te rauemi i whakamahia hei whakawhanake i te tātai. Heoi anō, kāore tēnei rauemi e hangaia ana, engari he tata ki te maitai A36.
He pono, he nui atu ngā mea e hiahiatia ana hei tatau tika i te pūwāhi piko me te rārangi piko o te pito wero. He mea nui te roa o te piko, te horahanga hononga i waenga i te ihu wero me te rauemi, tae atu ki te whānui o te mata. I runga i te āhuatanga, ka taea e te radius wero kotahi mō te rauemi kotahi te whakaputa i ngā piko koi me ngā piko tino pai (arā, ngā piko me te radius o roto e taea te matapae, ā, kāore he kopa i te rārangi kopa). Ka kitea e koe he tātaitai piko koi pai rawa atu i runga i taku paetukutuku e whai whakaaro ana ki ēnei taurangi katoa.
Pātai: He tātai hei tango i te piko mai i te tuara o te papa? I ētahi wā ka whakamahia e ā mātou tohunga pēhi pēhi he kōhao-V iti ake kāore i whakaarohia i roto i te mahere papa. Ka whakamahia e mātou ngā tango piko paerewa.
Whakautu: āe, kāo. Me whakamārama atu ahau. Mena he piko, he tā raro rānei, mena he rite te whānui o te pokepokea ki te matotoru o te rauemi pokepokea, kaua te whitiki e tino rerekē.
Mena kei te hanga hau koe, ka whakatauhia te pūtoro o roto o te piko e te kōhao o te mata, ā, mai i reira ka tangohia e koe te pūtoro i whiwhihia i roto i te mata, ka tatau i te tangohanga piko. Ka kitea e koe te nuinga o aku tuhinga mō tēnei kaupapa i TheFabricator.com; rapua a "Benson" ā, ka kitea e koe.
Kia pai ai te mahi a te hanga hau, me hoahoa e ō kaimahi hangarau he pereti ma te whakamahi i te tango piko i runga i te radius mānu i hangaia e te mata (e ai ki te whakaahuatanga i roto i te "Bend Inside Radius Prediction" i te tīmatanga o tēnei tuhinga). Mena kei te whakamahi tō kaiwhakahaere i te pokepokea kotahi me te wāhanga i hangaia ai, me utu te wāhanga whakamutunga.
Anei tētahi mea kāore i te tino kitea – he mahi makutu iti nō tētahi kaipānui hihiri e kōrero ana mō tētahi pou i tuhia e au i te marama o Hepetema 2021, arā, "Ngā Rautaki Pēki mō te Konumohe T6".
Whakautu a te kaipānui: Tuatahi, he tino pai ngā tuhinga kua tuhia e koe mō te mahi whakarewa pepa. Ngā mihi nui ki a koe mō ēnei. Mō te whakamahana i whakaahuahia e koe i roto i tō pou o Hepetema 2021, i whakaaro ahau me whakapuaki ētahi whakaaro mai i aku wheako.
I taku kitenga tuatahi i te mahi whakamahana i ngā tau maha kua pahure ake nei, i kīia mai kia whakamahia he rama oxy-acetylene, kia tahuna te hau acetylene anake, ā, kia peitahia ngā rārangi pokepokea ai ki te pungarehu pango mai i te hau acetylene kua tahuna. Ko tāu noa e hiahia ana he rārangi parauri pouri rawa, he rārangi pango paku rānei.
Kātahi ka tahuri te hāora, ka whakamahana i te waea mai i tērā taha o te wāhanga, mai i tētahi tawhiti whaitake kia memeha haere te waea tae i tāpirihia e koe, kātahi ka ngaro rawa atu. Koinei te pāmahana tika hei whakamahana i te konumohe kia puta he āhua 90 nekehanga, me te kore he raruraru pakaru. Kāore koe e hiahia ki te hanga i te wāhanga i te mea kei te wera tonu. Ka taea e koe te tuku kia whakamatao, ā, ka whakamahana tonu. Kei te mahara ahau ki te mahi i tēnei i runga i te pepa 6061-T6 matotoru 1/8″.
Neke atu i te 47 tau ahau e mahi ana i te hanga pepa whakarewa tino tika, ā, he pūkenga tonu taku ki te huna i ngā mea. Engari i muri i ngā tau maha, kāore au e tāuta ana i tēnei mea i ēnei rā. E mōhio ana ahau ki taku mahi! He pai ake rānei taku huna i ngā mea. Ahakoa pēhea, i taea e au te whakaoti i te mahi i te huarahi tino ohanga me te iti o ngā whakapaipai.
E mōhio ana ahau ki ētahi mea mō te hanga pepa whakarewa, engari e whakaae ana ahau ehara ahau i te kuware. He honore nui ki ahau te whakapuaki atu ki a koutou i ngā mātauranga kua kohia e au i roto i tōku ao.
I know one more thing: in general, you all have a lot of experience and knowledge. Let’s say you want to share interesting tips, work habits, or just tidbits with other readers. Please write it down or draw it and send it to me at steve@theartofpressbrake.com.
Kāore he taurangi ka whakamahia e au tō wāhitau īmēra i te pou e whai ake nei, engari e kore rawa koe e mōhio. Tērā pea. Kia maumahara, ko te nui ake o tā tātou whakawhitiwhiti mātauranga me ngā wheako, ko te pai ake o tā tātou haere.
Ko FABRICATOR te maheni hanga me te hanga rino matua o Amerika Te Raki. Ka whakaputahia e te maheni ngā purongo, ngā tuhinga hangarau me ngā kōrero angitu e āhei ai ngā kaihanga ki te mahi i ā rātou mahi me te whai hua ake. Kei roto a FABRICATOR i te umanga mai i te tau 1970.
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