Eia ke ʻano e koho ai i kahi mea ma muli o ʻekolu mau ʻāpana kumu: mea, ka uhi a me nā hiʻohiʻona geometric.
01, pehea e koho ai i ka mea o ka drill
Hiki ke hoʻokaʻawale ʻia nā mea waiwai i ʻekolu ʻano: ke kila kiʻekiʻe, ka cobalt high speed steel a me ka carbide paʻa.
Ke kila māmā holo kiʻekiʻe (HSS):
Ua hoʻohanaʻia ke kila kiʻekiʻe ma keʻano he meaʻokiʻoki no kaʻoi aku o hoʻokahi haneli mai ka makahiki 1910. ʻO ia ka mea i hoʻohana nuiʻia a me ka meaʻoki liʻiliʻi loa i loaʻa i kēia mau lā.Hiki ke hoʻohana ʻia nā ʻāpana kila kiʻekiʻe ma nā wili lima a ma nā wahi paʻa e like me nā kaomi wili.ʻO kekahi kumu ʻē aʻe o ka lōʻihi o ke kila holo wikiwiki, ʻo kāna mau mea paahana, hiki ke hoʻokala pinepine ʻia, ʻaʻole hiki ke hoʻohana ʻia ʻaʻole wale ma ke ʻano he drill bits akā he mau mea hana hoʻohuli.
ʻO ke kila māmā holo kiʻekiʻe ʻo Cobalt (HSSE):
ʻOi aku ka paʻakikī a me ka paʻakikī ʻulaʻula i loko o ka Cobalt ma mua o ke kila kiʻekiʻe.ʻO ka hoʻonui ʻana i ka paʻakikī e hoʻonui i ka pale ʻana i ka lole, akā i ka manawa like, ua kaumaha ʻia kekahi paʻakikī.E like me ke kila kiʻekiʻe, hiki ke hoʻonani ʻia e hoʻomaikaʻi i kā lākou hoʻohana.
CARBIDE:
ʻO ka carbide i hoʻopaʻa ʻia he mea i hui pū ʻia me ke kumu metala.Ma waena o lākou, hoʻohana ʻia ka tungsten carbide e like me ka matrix, a ua hoʻohana ʻia kekahi mau mea o nā mea ʻē aʻe e like me nā adhesives ma o nā kaʻina hana paʻakikī e like me ke kaomi isostatic wela no ka sintering.I ka paʻakikī, ka ʻulaʻula ʻulaʻula, ke kūpaʻa a me nā ʻano ʻē aʻe i hoʻohālikelike ʻia me ke kila wikiwiki, aia kahi hoʻomaikaʻi nui, akā ʻoi aku ka maikaʻi o ke kumukūʻai o ka mea hana carbide ma mua o ke kila kiʻekiʻe.ʻO ka carbide cemented i ke ola mea hana a me ka wikiwiki o ka hana ʻana ma mua o nā mea paahana i hala aku nei i ʻoi aku ka maikaʻi, i ka mea hana wili pinepine, ka pono o nā mea hana wili ʻoihana.
02, pehea e koho ai i ka uhi bit
Hiki ke hoʻokaʻawale ʻia ka uhi i nā ʻano 5 e like me ka laulā o ka hoʻohana.
Uncoated: ʻO nā mea hana ʻoki ʻole i hoʻopaʻa ʻia ʻo ia ka mea liʻiliʻi loa, hoʻohana maʻamau no ka hana ʻana i ka alumini alumini, ke kila kalapona haʻahaʻa a me nā mea palupalu ʻē aʻe.
ʻO ka uhi ʻeleʻele ʻeleʻele: hiki ke hāʻawi ʻia ka uhi ʻana i ka mea ʻoi aku ka maikaʻi ma mua o ka lubricity mea hana uncoated, ʻoi aku ka maikaʻi o ka pale ʻana i ka oxidation a me ka pale wela, a hiki ke hoʻomaikaʻi i ke ola lawelawe ʻoi aku ma mua o 50%.
ʻO Titanium nitride coating: ʻO Titanium nitride ka mea hoʻopili maʻamau, ʻaʻole kūpono no ka hana ʻana i ka paʻakikī kiʻekiʻe a me nā mea wela kiʻekiʻe.
ʻO ka uhi kalapona nitride Titanium: Hoʻokumu ʻia ka Titanium carbon nitride mai ka titanium nitride, ʻoi aku ka kiʻekiʻe o ka pale ʻana i ka wela a me ke kūpaʻa ʻana, maʻamau ka poni a i ʻole ka uliuli.Hoʻohana ʻia ma ka hale hana ʻo Haas e hana i nā mea hana hao.
Aluminum nitride titanium coating: ka uhi ʻana i ka alumini nitride titanium ma mua o nā mea a pau i luna aʻe he pale wela kiʻekiʻe, no laila hiki ke hoʻohana i nā kūlana ʻoki kiʻekiʻe.E like me ka hana ʻana i nā superalloys.He kūpono no ka hana ʻana i ke kila a me ke kila kila, akā no ka loaʻa ʻana o nā mea alumini, e hana ʻia nā hopena kemika i ka hana ʻana o ka alumini, no laila pono e pale i ka hana ʻana o nā mea i loaʻa i ka alumini.
Ma keʻano laulā, ʻoi aku ka maikaʻi o ka hoʻoheheʻe ʻana i ka cobalt me kahi titanium carbonitride a i ʻole titanium nitride coating.
03. Nā hiʻohiʻona geometric o ka bit drill
Hiki ke hoʻokaʻawale ʻia nā hiʻohiʻona Geometric i ʻekolu mau ʻāpana:
ʻO ka lōʻihi
ʻO ka ratio o ka lōʻihi a me ke anawaena ua kapa ʻia ʻo ke anawaena pālua, a ʻo ka liʻiliʻi o ke anawaena, ʻoi aku ka maikaʻi o ka rigidity.ʻO ke koho ʻana i kahi liʻiliʻi me ka lōʻihi ʻākau no ka wehe ʻana i ka chip a me ka lōʻihi o ka overhang pōkole hiki ke hoʻomaikaʻi i ka rigidity mīkini, a laila e hoʻonui ai i ke ola mea hana.ʻAʻole lawa ka lōʻihi lihi e hōʻino paha i ka bit drill.
ʻO ke kihi wili
ʻO ka drill point Angle o 118° ka mea maʻamau i ka mīkini a hoʻohana mau ʻia no nā metala palupalu e like me ke kila māmā a me ka alumini.ʻAʻole maʻamau ka hoʻolālā ʻana o kēia Angle, ʻo ia hoʻi, pono e hana mua ʻia ka lua kikowaena.ʻO ka 135 ° drill tip Angle ka mea maʻamau iā ia iho, kahi e mālama ai i ka manawa nui ma ka hoʻopau ʻana i ka pono e hana i kahi lua kikowaena hoʻokahi.
ʻĀneʻe Spiral
He koho maikaʻi ʻo 30° spiral Angle no ka hapa nui o nā mea.Eia nō naʻe, no nā kaiapuni kahi i ʻoi aku ka maikaʻi o ka wehe ʻana i nā ʻokiʻoki a ʻoi aku ka ikaika o ka ʻoki ʻana, hiki ke koho ʻia kahi kihi me kahi kihi spiral liʻiliʻi.No nā mea hana paʻakikī e like me ke kila kila, hiki ke hoʻohana ʻia kahi hoʻolālā me ka Angle spiral nui aʻe e hoʻololi i ka torque.
Ka manawa hoʻouna: Sep-01-2022