Ke koho ana i ka huina Reaming
⑴ ʻAla hoʻopaʻa ʻana ʻO ka ʻokoʻa reaming ka hohonu o ka ʻoki i mālama ʻia no ka reaming. ʻO ka mea maʻamau, ʻoi aku ka liʻiliʻi o ka ʻae no ka reaming ma mua o ka ʻae ʻana no ka reaming a i ʻole ka hōʻoluʻolu. ʻO ka nui o ka hāʻawi reaming e hoʻonui i ke kaomi ʻoki a hōʻino i ka reamer, e hopena i ka ʻinoʻino o ka ʻili i hana ʻia. Ke nui loa ka palena, hiki ke hoʻokaʻawale ʻia ka hinge a me ka hinge maikaʻi e hōʻoia i nā koi ʻenehana.
Ma ka ʻaoʻao ʻē aʻe, inā he liʻiliʻi loa ka haʻawina billet, e mae mua ka reamer a ʻaʻole hiki ke ʻoki ʻia ma ke ʻano maʻamau, a ʻilihune hoʻi ka roughness o ka ʻili. ʻO ka maʻamau, ʻo ka haʻawina reaming ʻo 0.1 ~ 0.25mm, a no nā lua anawaena nui, ʻaʻole hiki ke ʻoi aku ka ʻokoʻa ma mua o 0.3mm.
Aia kekahi ʻike e hōʻike ana e mālama i ka mānoanoa o 1 ~ 3% o ke anawaena reamer e like me ka ʻae ʻana o ka reaming (waiwai anawaena). No ka laʻana, ʻoi aku ka maikaʻi o ka hoʻohui ʻana i kahi reamer Φ20 me ke anawaena puka ma kahi o Φ19.6: 20-(20*2/100)=19.6 ʻO nā haʻawina reaming e hana liʻiliʻi ʻia no nā mea paʻakikī a me kekahi mau mea aerospace.
(2) ʻOi aku ka nui o ka hānai ʻana o ka reaming ʻoi aku ka nui ma mua o ka wili ʻana, maʻamau 2 ~ 3 mau manawa o ia. ʻO ke kumu o ka helu hānai kiʻekiʻe e hana i ka reamer e ʻoki i ka mea ma kahi o ka mea abrasive. Eia naʻe, ke piʻi aʻe nei ka waiwai Ra roughness o ka reaming me ka piʻi ʻana o ka helu hānai. Inā liʻiliʻi ka nui o ka hānai ʻana, e piʻi aʻe ka radial friction, a e pau koke ka reamer, e hoʻoneʻe ai ka reamer a hoʻomāinoino i ka ʻili o ka lua.
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ʻO ke kila kila reamer e hoʻoponopono ana i nā ʻāpana kila, no ka loaʻa ʻana o ka roughness ili Ra0.63, ʻaʻole pono ka nui o ka hānai ma mua o 0.5mm/r, no nā ʻāpana hao, hiki ke hoʻonui ʻia i 0.85mm/r.
⑶ ʻO ka wikiwiki o ka milo a me ka nui o ka reaming he hopena ko nā mea a pau i ka ʻinoʻino o ka ʻili o ka lua reaming, ʻo ia hoʻi, ʻoi aku ka ikaika o ka wikiwiki reaming. Inā hoʻohana ʻia kahi reamer kila no ka reaming, ʻoi aku ka maikaʻi ʻo Ra0.63; m , No nā mea hana kila kalapona maʻamau, ʻaʻole pono ka wikiwiki o ka reaming ma mua o 5m / min, no ka mea ʻaʻole maʻalahi ka hana ʻana o ka lihi i kūkulu ʻia i kēia manawa, a ʻaʻole kiʻekiʻe ka wikiwiki; i ka wā e hoʻolei ai i ka hao, no ka mea, ua haki ʻia nā ʻāpana i loko o ka granular, ʻaʻole e hana ʻia kahi lihi hōʻiliʻili. Nā kihi, no laila hiki ke hoʻonui i ka wikiwiki i 8 ~ 10m / min. ʻO ka maʻamau, hiki ke koho ʻia ka wikiwiki spindle o ka reaming e like me 2/3 o ka wikiwiki spindle o ka wili ʻana ma ka mea like.
No ka laʻana, inā he 500r/min ka wikiwiki o ka spindle wili, ʻoi aku ka maikaʻi o ka hoʻonohonoho ʻana i ka wikiwiki spindle reaming ma 2/3 o ia: 500*0.660=330r/min.
ʻO ka mea i kapa ʻia ʻo reamer he mea ʻoluʻolu maoli. Loaʻa i ka hōʻoluʻolu maikaʻi ka palena unilateral o 0.03-0.1 a me ka wikiwiki o 300-1000. Aia ka helu hānai ma waena o 30-100, ma muli o ke kapa ʻia ʻo ia he pahi.
Ka manawa hoʻouna: ʻAukake-24-2023
