ʻO ka hoʻopaʻa ʻana o ke kila paʻakikī me ka mea ʻoki PCBN

ʻO ka hoʻopaʻa ʻana i ke kila paʻakikī me ka mea ʻoki PCBN

I nā makahiki he umi i hala iho nei, ua hoʻololi mālie ʻia ka wili ʻana o nā ʻāpana kila paʻakikī me ka polycrystalline cubic boron nitride (PCBN). Ua ʻōlelo ʻo Tyler Economan, ka luna ʻenekinia bidding ma Index, USA, "Ma ke ʻano laulā, ʻo ka wili ʻana i nā ʻauwaha kahi kaʻina paʻa e hāʻawi ai i ka pololei ʻoi aku ka nui ma mua o ka grooving. Eia naʻe, makemake ka poʻe e hoʻopau i ka mea hana ma ka lathe. Pono nā ʻano hana like ʻole. "

ʻO nā mea hana mea hana like ʻole i hoʻopaʻa ʻia e pili ana i ke kila kiʻekiʻe, ke kila make, ke kila kila a me ke kila kila. ʻO nā metala ferrous wale nō ka mea hiki ke hoʻopaʻakikī, a hoʻohana pinepine ʻia nā kaʻina hana paʻakikī i nā kila kalapona haʻahaʻa. Ma o ka hoʻomaʻamaʻa paʻakikī, hiki ke hoʻonui ʻia ka paʻakikī o waho o ka mea hana, ʻoiai ʻoi aku ka paʻakikī o loko. ʻO nā ʻāpana i hana ʻia me ke kila paʻakikī, ʻo ia nō nā mandrel, axles, nā mea hoʻohui, nā huila hoʻokele, nā camshafts, nā pahu, nā bushings, nā kumu hoʻokele, nā bearings, a me nā mea like.

Eia nō naʻe, ʻo nā "mea paʻakikī" kahi manaʻo pili, hoʻololi. Manaʻo kekahi poʻe he mea paʻakikī nā mea hana me ka paʻakikī o 40-55 HRC; manaʻo kekahi he 58-60 HRC a ʻoi paha ka paʻakikī o nā mea paʻakikī. Ma kēia māhele, hiki ke hoʻohana i nā mea hana PCBN.

Ma hope o ka paʻakikī induction, hiki ke piʻi i ka 1.5mm ka mānoanoa o ka ʻili a hiki i ka 58-60 HRC, ʻoiai ʻoi aku ka palupalu o ka mea ma lalo o ka papa honua. I kēia hihia, he mea nui e hōʻoia i ka hapa nui o ka ʻoki ʻana i hana ʻia ma lalo o ka papa paʻakikī o ka ʻili.

ʻO nā mea mīkini me ka mana kūpono a me ka rigidity kahi kūlana kūpono no ka grooving o nā ʻāpana paʻakikī. Wahi a Economan, "ʻO ka ʻoi aku ka maikaʻi o ka paʻa o ka mīkini paʻahana a ʻoi aku ka kiʻekiʻe o ka mana, ʻoi aku ka maikaʻi o ka grooving o ka mea paʻakikī. No nā mea hana mea hana me ka paʻakikī o ka ʻoi aku ma mua o 50 HRC, ʻaʻole i hoʻokō ka nui o nā mīkini mīkini māmā i nā kūlana ʻoki pono. Inā ʻoi aku ka nui o ka mīkini (mana, torque, a ʻoi aku ka rigidity), ʻaʻole hiki ke hoʻopau maikaʻi ʻia ka mīkini."

He mea koʻikoʻi ka rigidity no ka mea paʻa mea hana no ka mea nui ka ʻili pili o ka ʻoki ʻoki me ka mea hana i ka wā o ke kaʻina hana grooving, a hoʻoikaika nui ka mea hana i ka mea hana. I ka wā e hoʻopaʻa ai i nā mea hana kila paʻakikī, hiki ke hoʻohana ʻia kahi kīwī ākea e hoʻopuehu i ka ʻili o ka ʻili. Ua ʻōlelo ʻo Paul Ratzki, ka luna kūʻai o Sumitomo Electric Hard Alloy Co., "Pono e kākoʻo paʻa ʻia nā ʻāpana e hana ʻia. I ka hana ʻana i nā mea paʻakikī, ʻoi aku ka nui o ka haʻalulu a me ke kaomi mea hana ma mua o ka hana ʻana i nā mea hana maʻamau. ʻAʻole hiki ke lele i waho o ka mīkini, a i ʻole e hoʻoheheʻe i ka maka CBN a haki paha. "

ʻO ka shank e paʻa ana i ka hoʻokomo grooving e like me ka pōkole i hiki ke hōʻemi i ka overhang a hoʻonui i ka rigidity mea hana. Ua kuhikuhi ʻo Matthew Schmitz, ka luna o nā huahana GRIP ma Isca, ma ka laulā, ʻoi aku ka maikaʻi o nā mea hana monolithic no ka grooving o nā mea paʻakikī. Eia naʻe, hāʻawi pū ka hui i kahi ʻōnaehana grooving modular. "Hiki ke hoʻohana ʻia ka shank modular i nā kūlana machining kahi e hiki ai i ka mea hana ke hāʻule koke," wahi āna. "ʻAʻole pono ʻoe e hoʻololi i ka shank holoʻokoʻa, pono ʻoe e hoʻololi i kahi mea ʻuʻuku loa. Hāʻawi ka modular shank i nā ʻano koho machining. Hiki ke hoʻokomo ʻia ka ʻōnaehana modular ʻo Iskar's Grip i nā ʻano huahana like ʻole. Hiki iā ʻoe ke hoʻohana i kahi mea paʻa me nā ʻāpana ʻokoʻa 7 no nā laina huahana 7 a i ʻole kekahi helu o nā lau no ka hana ʻokoʻa ʻO ka laina huahana like me ka laulā slot."

Hoʻohana nā mea paʻa hana a Sumitomo Electric no ka hoʻopaʻa ʻana i nā mea hoʻokomo ʻano CGA i kahi ʻano hoʻopaʻa kiʻekiʻe e huki hou i ka pahi i loko o ka mea paʻa. Hoʻokomo pū ʻia kēia mea paʻa i kahi wili ʻaoʻao e kōkua i ka hoʻomaikaʻi ʻana i ka paʻa paʻa a hoʻolōʻihi i ke ola mea hana. Rich Maton, kokualuna o ka 'oihana hoʻolālā o ka hui, i mai la, "Keia mea paʻa paʻa ua hoʻolālā 'ia no grooving o paakiki workpieces. Ina ka pahi e neʻe i loko o ka paʻa, e komo ka maka i ka manawa a me ka mea paahana ola loli. No ka kiʻekiʻe-productivity machining koi o ka automotive. ʻoihana (e like me 50-100 a i ʻole 150 mau mea hana ma kēlā me kēia ʻokiʻoki), he mea koʻikoʻi ka wānana o ke ola mea hana, a hiki i nā loli i ke ola mea hana ke loaʻa ka hopena nui i ka hana ʻana.

Wahi a nā hōʻike, ua hoʻohālikelike ʻia ka ʻōnaehana grooving modular Mitsubishi Materials 'GY series Tri-Lock modular i ka rigidity i nā chucks blade integral. Hoʻopaʻa paʻa ka ʻōnaehana i nā lau grooving mai ʻekolu ʻaoʻao (peripheral, mua a me luna). ʻO kāna hoʻolālā hoʻolālā ʻelua e pale i ka ʻili mai ka hoʻoneʻe ʻana i ka wā o ka grooving: ʻo ke ʻano V-like projection e pale ai i ka neʻe ʻana i nā ʻaoʻao; ʻO ke kī palekana e hoʻopau i ka neʻe ʻana i mua o ka maka i hoʻokumu ʻia e ka ʻoki ʻoki i ka wā o ka mīkini slot.

ʻO nā mea hoʻokomo grooving maʻamau no nā ʻāpana kila paʻakikī, ʻo ia nā mea hoʻokomo square maʻalahi, nā mea hoʻokomo, slotted inserts, a me nā mea like. ʻO ka mea maʻamau, pono nā ʻoki ʻoki ʻia e loaʻa ka hopena maikaʻi o ka ʻili no ka mea he ʻāpana male lākou, a ʻo kekahi he mau apo-O a i ʻole nā ​​apo apo paʻi. Wahi a Mark Menconi, mea loea huahana ma Mitsubishi Materials, "Hiki ke māhele ʻia kēia mau kaʻina hana i loko o ka anawaena groove machining a me waho o ka anawaena groove machining, akā ʻo ka hapa nui o nā hana grooving e koi aku i ka ʻoki maikaʻi, me ka pololei hoʻopā māmā mai kahi o 0.25 mm hohonu o ka ʻoki. kahi ʻoki piha me ka hohonu o 0.5mm."

Pono ka hoʻohana ʻana i nā mea hana me ka ʻoi aku ka paʻakikī, ʻoi aku ka maikaʻi o ka pale ʻana a me ka geometry kūpono. ʻO ke kī ʻo ia ke ʻike inā pono e hoʻohana ʻia kahi hoʻokomo carbide, kahi hoʻokomo seramika a i ʻole hoʻokomo PCBN. Ua ʻōlelo ʻo Schmitz, "Aneane koho mau au i nā mea hoʻokomo carbide i ka wā e hana ai i nā mea hana me ka paʻakikī ma lalo o 50 HRC. No nā mea hana me ka paʻakikī o 50-58 HRC, nā mea hoʻokomo seramika he koho waiwai loa. I ka manawa wale nō e noʻonoʻo ʻia ai ka mea hana CBN no ka paʻakikī a hiki i 58 HRC. He kūpono loa nā mea hoʻokomo CBN no ka hana ʻana i nā mea kiʻekiʻe o ka paʻakikī no ka mea ʻaʻole he mea ʻokiʻoki ka mīkini hana akā he mea hana. E hoohehee i ka mea.

No ka hana ʻana i nā ʻāpana kila paʻakikī me ka ʻoi aku o ka 58 HRC, ʻaʻole pilikia ka mana chip. Ma muli o ka hoʻohana mau ʻia ʻana o ka grooving maloʻo, ʻoi aku ka like o nā ʻāpana i ka lepo a i ʻole nā ​​mea liʻiliʻi liʻiliʻi a hiki ke wehe ʻia me ka puhi lima. Ua ʻōlelo ʻo Sumitomo Electric's Maton, "ʻO ka maʻamau, e haki kēia ʻano swarf i ka wā e paʻi ai i kekahi mea, no laila ʻaʻole e hōʻino ka hui ʻana o ka swarf me ka mea hana i ka mea hana.

ʻO kekahi o nā kumu i kūpono ai ka hoʻokomo ʻana o CBN no ka ʻoki maloʻo ʻana ʻoiai ʻoi aku ka maikaʻi o ko lākou pale ʻana i ka wela, ua hoʻemi nui ʻia ka hana hana i ka hihia o ka fluctuations o ka mahana. 'Ōleloʻo Economan, "ʻO kaʻoiaʻiʻo, i ka piliʻana o ka CBN me ka mea hana, hana ia i ka wela o kaʻokiʻana i ka piko, akā, no ka emiʻole o ka hoʻokomoʻana o CBN i nā hoʻololi wela, he paʻakikī ke hoʻomaʻalili kūpono e mālama mau. mahana wela. Mokuʻāina. He paʻakikī loa ʻo CBN, akā he palupalu nō hoʻi a haki paha ma muli o nā loli wela. "

Ke ʻoki ʻana i nā ʻāpana kila me ka paʻakikī haʻahaʻa (e like me 45-50 HRC) me ka carbide cemented, ceramic a i ʻole PCBN hoʻokomo, pono e pōkole nā ​​ʻāpana i hana ʻia. Hoʻopau maikaʻi kēia i ka wela o ka ʻoki ʻana i ka mea paahana i ka wā o ka ʻoki ʻana no ka mea hiki i nā ʻāpana ke lawe i ka nui o ka wela.

Manaʻo pū ʻo Iskar's Schmitz e hana ʻia ka mea hana ma kahi kūlana "hoʻohuli". Ua wehewehe ʻo ia, "I ka hoʻokomo ʻana i kahi mea paahana ma luna o ka mīkini paahana, ua hoʻokomo ʻia ka mea hana i makemake ʻia e ka mea hana mīkini mea hana ma ke ʻoki ʻana i ka maka i luna, no ka mea e hiki ai i ka mea hana.ka hoʻololi ʻana o ka mea hana e hoʻoikaika i lalo i ke alahao mīkini e paʻa ai ka mīkini. Eia nō naʻe, ke ʻoki ʻia ka maka i loko o ka mea hana, hiki ke noho nā ʻāpana i hana ʻia ma ka lau a me ka mea hana. Inā hoʻohuli ʻia ka mea paʻa paʻa a kau ʻia ka hāmeʻa i luna i lalo, ʻaʻole ʻike ʻia ka maka, a e pakele koke ke kahe o ka chip mai ka ʻoki ʻana ma lalo o ka hana o ka umekaumaha."

ʻO ka paʻakikī o ka ʻili he ala maʻalahi e hoʻomaikaʻi i ka paʻakikī o ke kila kalapona haʻahaʻa. ʻO ke kumumanaʻo e hoʻonui i ka ʻike kalapona ma kahi hohonu ma lalo o ka ʻili o ka mea. Ke ʻoi aku ka hohonu o ka grooving ma mua o ka mānoanoa o ka papa paʻakikī o ka ʻili, hiki mai kekahi mau pilikia ma muli o ka hoʻololi ʻana o ka lau grooving mai kahi mea ʻoi aku ka paʻakikī i kahi mea palupalu. No kēia hopena, ua hoʻomohala nā mea hana mea hana i nā māka lau no nā ʻano mea hana.

Ua ʻōlelo ʻo Duane Drape, ka luna kūʻai ma Horn (USA), "I ka hoʻololi ʻana mai kahi mea paʻakikī i kahi mea palupalu, ʻaʻole makemake ka mea hoʻohana e hoʻololi i ka pahi, no laila pono mākou e ʻimi i ka mea hana maikaʻi loa no kēia ʻano mīkini. Inā hoʻohana ʻia kahi mea hoʻokomo carbide cemented, e hālāwai ia me ka pilikia o ka ʻaʻahu nui ke ʻoki ʻia ka ʻili i kahi ʻili paʻakikī. Hiki iā mākou ke hoʻohana i ka ʻae ʻana: nā mea hoʻokomo carbide paʻakiki kiʻekiʻe + nā uhi lubricated kiʻekiʻe, a i ʻole nā ​​māka hoʻokomo CBN palupalu + ʻoki ʻoki kūpono no ka ʻoki ʻana i nā mea maʻamau (ma mua o ka mīkini paʻakikī).

Ua ʻōlelo ʻo Drape, "Hiki iā ʻoe ke hoʻohana i nā mea hoʻokomo CBN e ʻoki pono i nā mea hana me ka paʻakikī o 45-50 HRC, akā pono e hoʻoponopono ʻia ka geometry o ka lau. Loaʻa i nā mea hoʻokomo CBN maʻamau ka chamfer maikaʻi ʻole ma ka ʻoki ʻoki. ʻOi aku ka palupalu o kēia chamfer CBN hoʻokomo i ka mīkini. Ke hoʻohana ʻia ka mea hana, e loaʻa ka hopena huki a hoʻopōkole ʻia ke ola mea hana. Inā hoʻohana ʻia ka papa CBN me ka paʻakikī haʻahaʻa a hoʻololi ʻia ka geometry o ka ʻoki ʻoki, hiki ke ʻoki maikaʻi ʻia ka mea hana me ka paʻakikī o 45-50 HRC. "

ʻO ka S117 HORN grooving insert i hoʻomohala ʻia e ka hui e hoʻohana ana i ka piko PCBN, a ʻo ka hohonu o ka ʻoki ʻia ma kahi o 0.15-0.2 mm ke ʻoki pololei ʻia ka laula o ka mīkini. No ka loaʻa ʻana o kahi hoʻopau ʻili maikaʻi, loaʻa i ka pahi kahi mokulele ʻōpala ma kēlā me kēia ʻokiʻoki ma nā ʻaoʻao ʻelua.

ʻO kahi koho ʻē aʻe e hoʻololi i nā palena ʻoki. Wahi a Index's Economan, "Ma hope o ka ʻoki ʻana i ka papa paʻakikī, hiki ke hoʻohana ʻia nā ʻāpana ʻoki nui. Inā he 0.13mm a i ʻole 0.25mm wale nō ka hohonu paʻakikī, ma hope o ka ʻoki ʻana i kēia hohonu, ua hoʻololi ʻia nā ʻāpana ʻokoʻa a i ʻole e hoʻohana mau i ka maka hoʻokahi, akā e hoʻonui i nā ʻoki ʻoki i ka pae kūpono. "

I mea e uhi ai i kahi ākea o ka hana ʻana, ke hoʻonui nei nā māka lau o PCBN. ʻO nā māka paʻakikī kiʻekiʻe e hiki ke hoʻohana i ka wikiwiki o ka ʻoki ʻana, ʻoiai nā māka me ka ʻoi aku ka paʻakikī hiki ke hoʻohana ʻia i nā kaiapuni kaʻina hana paʻa ʻole. No ka ʻoki hoʻomau a hoʻopau ʻia paha, hiki ke hoʻohana ʻia nā māka hoʻokomo PCBN like ʻole. Ua kuhikuhi ʻo Sumitomo Electric's Maton ma muli o ka palupalu o nā mea hana PCBN, ʻoi aku ka maʻalahi o nā ʻoki ʻoki ʻoki i ka wā e hana ai i ke kila paʻakikī. "Pono mākou e pale i ka ʻoki ʻoki, ʻoi aku hoʻi i ka ʻoki ʻoki ʻana, pono e mākaukau ka ʻoki ʻoki ma mua o ka ʻoki mau ʻana, a ʻoi aku ka nui o ka ʻoki ʻoki."

Hoʻonui hou ʻia nā māka IB10H a me IB20H hou a Iskar i kāna laina huahana Groove Turn PCBN. ʻO IB10H kahi papa PCBN maikaʻi no ka ʻoki mau ʻana o ke kila paʻa i ka wikiwiki a me ke kiʻekiʻe; ʻoiai ʻo IB20H he mau huaʻai PCBN ka nui a me ka liʻiliʻi, e hāʻawi ana i ka pale ʻaʻahu maikaʻi a me ke kūpaʻa hopena. Hiki i ke koena ke pale i nā kūlana koʻikoʻi o ke kila paʻakikī i hoʻopau ʻia. ʻO ke ʻano hemahema maʻamau o kahi hāmeʻa PCBN ʻo ia ka pau ʻana o ka ʻoki ʻokima mua o ka pohā koke a i ʻole ka pohā.

Hoʻohana ʻia ka papa PCBN i uhi ʻia e ka BNC30G i hoʻokomo ʻia e Sumitomo Electric no ka hoʻopau ʻia ʻana o nā mea hana kila paʻakikī. No ka hoʻomau mau ʻana, hōʻike ka hui i kāna helu ʻai ākea ākea BN250. Ua ʻōlelo ʻo Maton, "Ke ʻoki mau ʻia, ʻoki ʻia ka maka no ka manawa lōʻihi, kahi e hoʻoulu ai i ka wela nui. No laila, pono e hoʻohana i kahi pahi me ke kūpaʻa maikaʻi. I ka hihia o ka ʻoki ʻana, komo mau ka pahi a puka i waho i ka ʻoki ʻana. He hopena nui ia ma ka piko. No laila, pono e hoʻohana i kahi pahi me ka paʻakikī maikaʻi a hiki ke pale i ka hopena intermittent. Eia kekahi, kōkua pū ka uhi ʻana i ka lau e hoʻolōʻihi i ke ola mea hana. "

Ma waho aʻe o ke ʻano o ke awāwa i hana ʻia, hiki ke hoʻololi ʻia nā hale hana i hilinaʻi mua i ka wili ʻana e hoʻopau i nā ʻāpana kila paʻakikī i ka grooving me nā mea hana PCBN e hoʻonui ai i ka huahana. Hiki ke hoʻokō i ka pololei o ke ana e like me ka wili ʻana, ʻoiai e hōʻemi nui ana i ka manawa mīkini.