ʻAno o ka ʻūlū wili maʻamau

ʻO nā ʻāpana wili i hoʻohana pinepine ʻia he twist drill, flat drill, deep hole drill, reaming drill, counterboring a pēlā aku.

1, wili wili: ʻo ka wili wili ka mea hana hana lua i hoʻohana nui ʻia. ʻO ke anawaena maʻamau mai 0.25 a 80 mm. Hana nui ʻia ia me kahi ʻāpana hana a me kahi lima. Loaʻa i ka ʻāpana hana ʻelua mau ʻōwili wili, i ke ʻano o ka wili, no laila ka inoa.

2, wili pālahalaha: ʻO ke ʻano o ka ʻoki ʻana o ka wili pālahalaha he ʻano pala, he ʻano maʻalahi, he haʻahaʻa ke kumukūʻai hana, hiki ke lawe maʻalahi ʻia ka wai ʻoki i loko o ka lua, akā ʻaʻole maikaʻi ka hana ʻoki a me ka wehe ʻana i nā ʻāpana. ʻElua ʻano o ke ʻano o ka wili pālahalaha: hoʻohui ʻia a ʻākoakoa ʻia. Hoʻohana nui ʻia ka hoʻohui no ka wili ʻana i nā lua liʻiliʻi me ke anawaena o 0.03 ~ 0.5 mm. Hiki ke hoʻololi ʻia ka pahi wili pālahalaha i hana mua ʻia a hiki ke hoʻomaʻalili ʻia i loko, a hoʻohana nui ʻia no ka wili ʻana i nā lua nui me ke anawaena o 25 a 500 mm.

3, ʻeli hohonu lua: ʻo ka ʻeli hohonu lua e pili ana i ka hana ʻana o ka hohonu o ka lua a me ka lakio puka o ka mea hana ma mua o 6 mau lua. ʻO ka ʻeli pū, ka ʻeli hohonu lua BTA, ka ʻeli jet, ka ʻeli hohonu lua DF a pēlā aku. Hoʻohana pinepine ʻia ka ʻeli pū no ka mīkini ʻeli hohonu lua.

4, wili reaming: he 3 a 4 mau niho ʻokiʻoki o ka wili reaming, ʻoi aku ka maikaʻi o kona paʻakikī ma mua o ka wili wili, hoʻohana ʻia e hoʻonui i ka lua e kū nei a hoʻomaikaʻi i ka pololei o ka hana a me ka hoʻopau ʻana.

5, ka countersink: ʻoi aku ka nui o nā niho o ka countersink, a ua hana ʻia ka hopena o ka lua i ke ʻano i makemake ʻia ma ke ʻano hana, kahi i hoʻohana ʻia no ka hana ʻana i ka lua countersink o nā wili countersink like ʻole, a i ʻole ka ʻaoʻao o waho o ka lua pālahalaha.