Maopopo anei iā ʻoe kēia mau huaʻōlelo: Helix angle, point angle, main cutting edge, profile of flute? Inā ʻaʻole, pono ʻoe e hoʻomau i ka heluhelu. E pane mākou i nā nīnau penei: He aha ka ʻoki ʻoki lua? He aha ke kihi helix? Pehea lākou e pili ai i ka hoʻohana ʻana i kahi noi?
No ke aha he mea nui e ʻike i kēia mau mea: Ke waiho nei nā mea like ʻole i nā koi like ʻole i ka mea hana. No kēia kumu, he mea koʻikoʻi loa ke koho ʻana i ka drill twist me ke ʻano kūpono no ka hopena wili.
E nānā kākou i nā hiʻohiʻona kumu ʻewalu o ka puʻu wili: ʻO ke kihi kiko, ka ʻoki nui, ka ʻoki ʻoki ʻoki, ka ʻoki kiko a me ka ʻemi kiko, ka ʻaoʻao o ka ʻohe, ke kumu, ka ʻoki lua, a me ka kihi helix.
No ka loaʻa ʻana o ka hana ʻoki maikaʻi loa i nā mea like ʻole, pono e hoʻohālikelike ʻia nā hiʻohiʻona ʻewalu i kekahi.
No ka hōʻike ʻana i kēia mau mea, hoʻohālikelike mākou i kēia mau ʻano hoʻoheheʻe ʻekolu me kekahi i kekahi:
kihi kiko
Aia ka huina kiko ma ke poo o ka wiliwili wili. Ana ʻia ka ʻoki ma waena o nā kihi ʻoki nui ʻelua ma luna. Pono kahi kihi kiko e hoʻokaʻawale i ka drill wili i ka mea.
ʻOi aku ka liʻiliʻi o ka huina kiko, ʻoi aku ka maʻalahi o ke kikowaena i ka mea. Hoʻemi kēia i ka pilikia o ka paheʻe ʻana ma nā ʻaoʻao curved.
ʻO ka nui o ka huina kiko, ʻoi aku ka pōkole o ka manawa paʻi. Eia nō naʻe, koi ʻia kahi kaomi hoʻopili kiʻekiʻe a ʻoi aku ka paʻakikī o ke kikowaena i ka mea.
ʻO ke ʻano geometrically, ʻo ke kihi kiko liʻiliʻi, ʻo ia hoʻi nā kihi ʻoki nui lōʻihi, akā ʻo ka kihi kiko nui, ʻo ia hoʻi nā kihi ʻoki nui pōkole.
Nā kihi ʻoki nui
Lawe nā ʻoki ʻoki nui i ke kaʻina hana wili maoli. ʻOi aku ka kiʻekiʻe o ka ʻokiʻoki lōʻihi i ka hoʻohālikelike ʻana i nā ʻokiʻoki pōkole, ʻoiai inā he liʻiliʻi loa nā ʻokoʻa.
ʻElua mau ʻaoʻao ʻoki nui i hoʻopili ʻia e ka lihi ʻoki ʻoki.
E ʻoki i ka ʻaoʻao chisel
Aia ka ʻaoʻao chisel i ʻoki ʻia i waenakonu o ka piko drill a ʻaʻohe hopena ʻoki. Eia nō naʻe, he mea nui ia no ke kūkulu ʻana i ka wili wili, no ka mea e hoʻopili ai i nā kihi ʻoki nui ʻelua.
ʻO ka ʻaoʻao chisel i ʻoki ʻia ke kuleana no ke komo ʻana i ka mea a hoʻoikaika i ke kaomi a me ka friction ma luna o ka mea. ʻO kēia mau waiwai, he mea maikaʻi ʻole no ke kaʻina hana wili, ka hopena i ka hoʻonui ʻana i ka wela a me ka hoʻonui ʻana i ka mana.
Eia naʻe, hiki ke hoʻemi ʻia kēia mau waiwai e ka mea i kapa ʻia ʻo "thinning".
ʻOki kiko a me nā ʻoki kiko
ʻO ka hoʻoemi ʻana i ka lae e hoʻemi i ka ʻoki ʻokiʻoki ma luna o ka wili wili. ʻO ka thinning ka hopena i ka hoʻohaʻahaʻa nui ʻana o nā ikaika friction i loko o ka mea a no laila ka hoʻemi ʻana i ka ikaika hānai pono.
ʻO ke ʻano kēia, ʻo ka thinning ka mea hoʻoholo no ke kikowaena i ka mea. Hoʻomaikaʻi ia i ka paʻi ʻana.
Hoʻohālikelike ʻia nā ʻāpana kikoʻī like ʻole i nā ʻano DIN 1412. ʻO nā hiʻohiʻona maʻamau ka lae helical (ʻano N) a me ka helu māhele (ʻano C).
Hōʻike o ka ʻohe (groove profile)
Ma muli o kāna hana ma ke ʻano he ʻōnaehana channel, hoʻolaha ka ʻōlelo o ka flute i ka lawe ʻana a me ka wehe ʻana.
ʻO ka ʻoi aku ka nui o ka profile groove, ʻoi aku ka maikaʻi o ka lawe ʻana a me ka wehe ʻana.
ʻO ka wehe ʻana i ka puʻupuʻu maikaʻi ʻole, ʻo ia ka hoʻomohala ʻana o ka wela kiʻekiʻe, ʻo ia ka mea hiki ke alakaʻi i ka annealing a hope loa i ka haki ʻana o ka drill twist.
He pālahalaha nā ʻaoʻao ākea ākea, hohonu nā ʻaoʻao ʻāwīwī lahilahi. Hoʻoholo ka hohonu o ka profile groove i ka mānoanoa o ke kumu drill. Hiki i nā ʻaoʻao ʻāwī palahalaha ke anawaena nui (mānoanoa). Hiki i nā ʻaoʻao hohonu ke ʻae i nā anawaena kumu liʻiliʻi.
Core
ʻO ka mānoanoa kumu ka mea e hoʻoholo ai i ka paʻa o ka drill wili.
ʻOi aku ka paʻa o nā ʻōniu wili me kahi anawaena kumu nui (mānoanoa) a no laila kūpono ia no nā torque kiʻekiʻe a me nā mea paʻakikī. Ua kūpono loa lākou no ka hoʻohana ʻana i nā hana hoʻopaʻa lima no ka mea ʻoi aku ka pale ʻana i nā haʻalulu a me nā ʻaoʻao ʻaoʻao.
I mea e maʻalahi ai ka wehe ʻana i nā ʻāpana mai ke awāwa, hoʻonui ka mānoanoa kumu mai ka piko drill a i ka shank.
Nā chamfers alakaʻi a me nā kihi ʻoki lua
Aia nā pahu alakaʻi ʻelua ma nā ʻohe. Hana pū nā chamfers ʻoi loa ma nā ʻaoʻao ʻaoʻao o ka luawai a kākoʻo i ke alakaʻi ʻana o ka wili wili i ka lua i wili ʻia. ʻO ka maikaʻi o nā paia lua e pili pū ana i nā waiwai alakaʻi chamfers.
ʻO ka ʻoki ʻoki lua ka hoʻololi ʻana mai nā chamfers alakaʻi i ka profile groove. Wehe a ʻokiʻoki i nā ʻāpana i paʻa i ka mea.
ʻO ka lōʻihi o nā chamfers alakaʻi a me nā kihi ʻoki lua e hilinaʻi nui ʻia ma ka kihi helix.
Helix angle
ʻO kahi hiʻohiʻona koʻikoʻi o ka drill twist ʻo ia ka helix angle (spiral angle). Hoʻoholo ia i ke kaʻina hana o ka hoʻokumu ʻana i ka chip.
Hāʻawi nā kihi helix nui i ka wehe pono ʻana i nā mea palupalu a lōʻihi. ʻO nā kihi helix liʻiliʻi, ma kekahi ʻaoʻao, hoʻohana ʻia no nā mea paʻakikī a pōkole pōkole.
ʻO nā wili wili me kahi kihi helix liʻiliʻi loa (10° – 19°) he ʻōniʻoniʻo lōʻihi. I ka hoʻihoʻi ʻana, loaʻa i ka wili wili s me kahi kihi helix nui (27° - 45°) he ʻōniu rammed (pōkole). He 19° - 40° ka huina helix o na wiliwili me ka spiral ma'amau.
Nā hana o nā hiʻohiʻona i ka noi
I ka nānā mua ʻana, ʻano paʻakikī ke kumuhana o nā drills twist. ʻAe, nui nā ʻāpana a me nā hiʻohiʻona e hoʻokaʻawale i kahi drill twist. Eia nō naʻe, pili like nā ʻano he nui.
No ka loaʻa ʻana o ka drill twist kūpono, hiki iā ʻoe ke kuhikuhi iā ʻoe iho i kāu noi ma ka hana mua. ʻO ka DIN manual for drills and countersinks e wehewehe, ma lalo o DIN 1836, ka mahele ʻana o nā hui noi i ʻekolu ʻano N, H, a me W:
I kēia mau lā ʻaʻole ʻoe e ʻike wale i kēia mau ʻano ʻekolu N, H, a me W ma ka mākeke, no ka mea i ka wā lōʻihi, ua hoʻonohonoho ʻia nā ʻano like ʻole e hoʻopaʻa pono i nā drill drill no nā noi kūikawā. No laila, ua hoʻokumu ʻia nā ʻano hybrid nona nā ʻōnaehana inoa ʻaʻole i hoʻohālikelike ʻia i ka manual DIN. Ma MSK ʻaʻole ʻoe e ʻike wale i ke ʻano N akā ʻo nā ʻano UNI, UTL a i ʻole VA.
Ka hopena a me ka hōʻuluʻulu manaʻo
I kēia manawa ua ʻike ʻoe i nā hiʻohiʻona o ka wili wili e hoʻoikaika i ke kaʻina hana wili. Hāʻawi ka papa ma lalo iā ʻoe i kahi hiʻohiʻona o nā hiʻohiʻona nui o nā hana kūikawā.
| Hana | Nā hiʻohiʻona |
|---|---|
| Hana ʻoki ʻoki | Nā kihi ʻoki nui Lawe nā ʻoki ʻoki nui i ke kaʻina hana wili maoli. |
| Ola lawelawe | Hōʻike o ka ʻohe (groove profile) ʻO ka ʻaoʻao o ka ʻohe i hoʻohana ʻia ma ke ʻano he ʻōnaehana channel ke kuleana no ka lawe ʻana a me ka wehe ʻana, a no laila, he kumu nui ia o ke ola lawelawe o ka drill twist. |
| Palapala noi | kihi kiko a me ka huina Helix ʻO ke kihi kiko a me ke kihi helix nā mea koʻikoʻi no ka noi ʻana i nā mea paʻakikī a palupalu paha. |
| Ke kikowaena | ʻOki kiko a me nā ʻoki kiko ʻO ka ʻoki kiko a me ka ʻokiʻoki ʻana i ka lae he mau mea koʻikoʻi ia no ka hoʻokau ʻana i ka mea. Ma ka hoʻoemi ʻana i ka ʻoki ʻoki ʻoki e hoʻemi ʻia i ka hiki. |
| Ka pololei concentricity | Nā chamfers alakaʻi a me nā kihi ʻoki lua Hoʻopili nā chamfers alakaʻi a me nā kihi ʻoki lua i ka pololei concentricity o ka wili wili a me ka maikaʻi o ka lua wili. |
| Paʻa | Core ʻO ka mānoanoa kumu ke ana hoʻoholo no ka paʻa o ka wili wili. |
Basically, hiki iā ʻoe ke hoʻoholo i kāu noi a me nā mea āu e makemake ai e wili i loko.
E nānā i ka hāʻawi ʻia ʻana o nā drill wili a hoʻohālikelike i nā hiʻohiʻona a me nā hana āu e pono ai no kāu mea e wili ʻia.
Ka manawa hoʻouna: ʻAukake-12-2022
