Nā hopena o ka Chamfer ma nā PDC Cutters

PDC (Polycrystalline diamond compact) ʻokiʻoki i ka hana koʻikoʻi i ka hana ʻana o nā bits PDC i ka ʻaila ʻaila & gas. He mea nui loa ke aʻo ʻana i ke ʻano haʻihaʻi pōhaku no nā bits PDC e hoʻoponopono i nā hoʻokumu paʻakikī, ʻoi aku ka lōʻihi o nā pūnāwai.

Ma waena o nā kumu a pau e hoʻohuli ai i ka pono o ka ʻoki ʻana, maʻalahi ka nānā ʻole ʻana i ka chamfer i nā haʻawina theoretical a me nā hoʻokolohua.

ʻO ka chamfer kahi lihi hoʻololi ma waena o ʻelua mau maka o kahi mea. Loaʻa i nā mea ʻoki PDC ka chamfer ma lalo a me ka papa daimana.

I ka waena o 1990s, ua hoʻomaka ka ʻenehana chamfering e hoʻohana nui ʻia i nā mea ʻoki PDC, a ua ʻae ʻia ka ʻenehana multi-chamfering ma ke ʻano o kahi patent ma 1995. Inā hoʻohana pono ʻia ka ʻenehana chamfering, hiki ke kūʻē i ka haʻihaʻi o ka mea ʻoki i ka wā wili. e hoʻomaikaʻi ʻia e 100%. Ua hoʻohana pono ka hui ʻo Baker Hughes i kahi ʻenehana chamfer pālua ma nā niho i nā makahiki i hala iho nei.

ʻO ka ʻokiʻoki PDC pālua-chamfer he ʻenehana hou e hui pū ana i kahi chamfer mua me kahi ʻaoʻao lua, e hiki ai i nā kiʻi kiʻi ke hoʻoheheʻe ʻia me ka ʻole o ka hoʻololi ʻana i ka wikiwiki o ke komo ʻana (ROP). Mai ka makahiki 2013, ʻoi aku ma mua o 1,500 holo me nā bits e hoʻohana ana i ka ʻenehana pālua-chamfer i hana ʻia ma Oklahoma. Ua hoʻomaikaʻi maikaʻi ʻia ke kūlana dull, i ka hopena i ka hōʻemi ʻana i nā apo kani, nā kumu i waho, a me nā pōʻino liʻiliʻi ʻē aʻe.

He hopena maikaʻi ka Chamfering polycrystalline diamond compact (PDC) i ka lōʻihi o ka lihi a me ka lōʻihi. ʻAʻole i loli kēia manaʻo i nā makahiki he nui mai ka wā i hoʻokomo ʻia ai nā ʻoki PDC chamfered. Nui nā noiʻi i hana ʻia me kahi hoʻololi hoʻokahi i ke kiʻekiʻe chamfer a i ʻole ke kihi chamfer a i ʻole me nā geometries lihi hui.

Ua ʻike ʻia ʻo ka liʻiliʻi liʻiliʻi ʻo ia ka ROP kiʻekiʻe akā ʻoi aku ka maʻalahi o ka ʻokiʻoki a ʻokiʻoki i ka pōʻino ma mua o kahi kihi nui. ʻO ke kihi nui, ʻoi aku ka lōʻihi o ka ʻokiʻoki akā haʻahaʻa ka ROP. Pono e hoʻonui ʻia ka waiwai angle e like me nā ʻano o ka hana maʻamau e wili ʻia.

No ka mea kūʻai aku, ʻo ka ʻenehana ʻokiʻoki i hoʻomaikaʻi ʻia ka hopena i ka mālama kālā nui a me ka hilinaʻi hou aʻe i ke ola mea hana, e hiki ai i ka hoʻomanawanui a me ka lōʻihi. ʻO ka hope loa, hiki i ka ʻenehana ʻokiʻoki hou ke hoʻohaʻahaʻa i nā kumukūʻai wili ʻana a wehe i nā palena wili ʻoi aku ka maikaʻi ʻole ma mua.

Welina mai e ʻike iā mākou me nā mea ʻoki PDC, loaʻa nā ʻoki PDC pālua-chamfer.

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