He aha ka HSS Twist Drill Bit?
ʻO ka wili wili HSS kahi ʻano mea hana wili i hana ʻia me ke kila wikiwiki i hoʻohana ʻia no ka hana metala. He kila hui kūikawā ʻo HSS me ke kūpaʻa abrasion maikaʻi loa, ke kūpaʻa wela, a me nā waiwai ʻoki, e kūpono ai no nā hana hana metala e like me ka wili ʻana. ʻO ka wili wili (ʻike ʻia hoʻi ʻo auger a i ʻole spiral flute drill) he wili me nā ʻohe helical e hiki ai i nā ʻāpana ʻoki ke puka koke mai ka lua wili, e hōʻemi ana i ka friction a me ka wela i ka wā wili a hoʻomaikaʻi i ka pono o ka wili ʻana. ʻO ka hoʻolālā ʻana o nā wili wili HSS e kūpono iā lākou no nā ʻano mea metala like ʻole, me ke kila, ka alumini, ke keleawe a me nā hui, a pēlā aku a me ka mīkini ʻano lāʻau.
Nā ʻano o nā wili wili kila wikiwiki
1. Ke Kū'ē Kiʻekiʻe i ka ʻAbrasion: Hōʻike nā mea kila wikiwiki i ke kūpaʻa ʻana i ka abrasion maikaʻi loa, e ʻae ana i nā ʻaoʻao ʻoki e noho ʻoi no ka wā lōʻihi.
2. Paʻa Wela Kiʻekiʻe: Hiki i ke kila wikiwiki ke hana i nā wahi wela kiʻekiʻe me ka ʻole o ka nalowale nui o ka paʻakikī a i ʻole ke ʻano ʻē.
3. Hana ʻoki maikaʻi loa: ʻO ka hoʻolālā ʻōwili spiral o nā wili wili e kōkua i ka ʻoki metala maikaʻi me ka hoʻemi ʻana i ka hōʻiliʻili ʻāpana.
4. Kūlana Makini Hilinaʻi: Hāʻawi pinepine nā wili wili kila wikiwiki i nā lua i wili ʻia me ke ʻano kiʻekiʻe me nā ana pololei a me nā ʻili laumania.
Nā ʻAno HSS a mākou i hoʻohana ai no kā mākou mau wili wili
ʻO nā māka nui o ka HSS a mākou e hoʻohana nei: M42, M35, M2, 4341, 4241.
Aia kekahi mau ʻokoʻa ma waena o lākou, e pili nui ana i ko lākou ʻano kemika, ka paʻakikī, ke kūpaʻa wela a me nā wahi o ka hoʻohana ʻana. Aia ma lalo nā ʻokoʻa nui ma waena o kēia mau papa HSS:
1. M42 HSS:
Loaʻa i ka M42 he 7%-8% cobalt (Co), 8% molybdenum (Mo) a me nā mea hoʻohui ʻē aʻe. Hāʻawi kēia iā ia i ke kūpaʻa ʻana i ka abrasion a me ke kūpaʻa wela. ʻOi aku ka paʻakikī o ka M42, a ʻo kona paʻakikī rockwell he 67.5-70 (HRC) hiki ke hoʻokō ʻia e nā ʻano hana mālama wela.
2. M35 HSS:
Loaʻa i ka M35 he 4.5%-5% cobalt a he kūpaʻa koʻikoʻi hoʻi i ka abrasion a me ke kūpaʻa wela. ʻOi aku ka paʻakikī o ka M35 ma mua o ka HSS maʻamau a mālama mau i ka paʻakikī ma waena o 64.5 a me 67.59 (HRC). He kūpono ka M35 no ka ʻoki ʻana i nā mea pipili e like me ke kila kila.
3. M2 HSS:
Loaʻa i ka M2 nā pae kiʻekiʻe o ka tungsten (W) a me ka molybdenum (Mo) a he mau waiwai ʻoki maikaʻi. ʻO ka paʻakikī o M2 maʻamau ma ka pae o 63.5-67 (HRC), a kūpono ia no ka mīkini ʻana i nā metala e pono ai nā koi kiʻekiʻe.
4. 4341 HSS:
He kila wikiwiki ka 4341 HSS me ka haʻahaʻa iki o ka nui o ka metala e pili ana i ka m2. Mālama ʻia ka paʻakikī ma luna o 63 HRC a kūpono no nā hana hana metala maʻamau.
5. 4241 HSS:
ʻO 4241 HSS kahi HSS haʻahaʻa haʻahaʻa hoʻi me nā mea hoʻohuihui liʻiliʻi. Mālama ʻia ka paʻakikī ma kahi o 59-63 HRC a hoʻohana pinepine ʻia no ka hana metala maʻamau a me ka ʻeli ʻana.
ʻO ke koho ʻana i ka papa kūpono o ka HSS e pili ana i kāu mau pono noi kikoʻī a me ke ʻano o ka mea e hana ʻia. ʻO ka paʻakikī, ke kūpaʻa ʻana i ka abrasion a me ke kūpaʻa wela nā mea nui i ke koho ʻana.
Ka manawa hoʻouna: Sep-18-2023