Ko te mata tapahi matua o te mira pito ko te mata porotaka, ā, ko te mata tapahi i te mata pito ko te mata tapahi tuarua. Kāore e taea e te mira pito kāore he mata pokapū te mahi i te nekehanga whāngai i te taha tuaka o te taputapu mira. E ai ki te paerewa ā-motu, ko te diameter o te mira pito ko te 2-50 mm, ka taea te wehewehe ki ngā momo e rua: ngā niho matotoru me ngā niho angiangi. Ko te diameter o te 2-20 ko te whānuitanga o te kakau tika, ā, ko te diameter o te 14-50 ko te whānuitanga o te kakau whakarara.
Kei te wātea ngā mira mutunga paerewa me ngā niho taratara me ngā niho angiangi. Ko te maha o ngā niho o te mira mutunga niho taratara he 3 ki te 4, ā, he nui ake te koki porowhita β; ko te maha o ngā niho o te mira mutunga niho taratara he 5 ki te 8, ā, he iti ake te koki porowhita β. Ko te rauemi o te wāhanga tapahi he maitai tere-rahi, ā, ko te kakau he maitai 45.
He maha ngā āhua o ngā mīhini mira, e whakamahia ana mō ngā mīhini mira noa me ngā mīhini mira CNC hei tukatuka i ngā awaawa me ngā kōpiko tika, hei tukatuka hoki i ngā poka, ngā matua, me ngā āhua/kōpiko mata i runga i ngā pokapū mīhini mira me te poka.
Ko ngā mīhini mira ka wehea whānuitia kia:
1. Kaitapahi mira pito papatahi, mō te mira pai, te mira taratara rānei, te mira i ngā awaawa, te tango i te nui o ngā mea takoto kau, te mira pai o ngā papa whakapae iti, ngā āhua rānei;
2. Kaitapahi mira ihu pōromō te mira whakaoti me te whakaoti i ngā mata piko; ka taea e ngā taputapu tapahi iti te whakaoti i te mira i ngā kōhao iti i runga i ngā mata pari/pakitara tika.
3. Kei te mīhini mira pito papatahite whakakorikori, ka taea te whakamahi mō te mira taratara hei tango i te nui o ngā mea kore, ā, ka taea hoki te mira miro i ngā porowhita iti i runga i ngā mata papatahi angiangi (e pā ana ki ngā mata pari).
4. Te hanga i ngā mīhini mira, tae atu ki ngā tapatapahi porotaka, ngā tapatapahi mira āhua-T, ngā tapatapahi pahu rānei, ngā tapatapahi niho, me ngā tapatapahi R o roto.
5. Kaitapahi whakakoi, he rite tonu te āhua o te taputapu tapahi chamfering ki te āhua o te chamfering, ā, kua wehea kia rua ngā taputapu mira hei whakaawhiwhi me te chamfering.
6. Kaitapahi āhua-T, ka taea te mira i te awaawa āhua-T;
7. He taputapu tapahi niho, e mira ana i ngā momo āhua niho, pērā i ngā taputapu.
8. Tapahi kiri taratara, he mīhini mira taratara i hangaia mō te tapahi i te konumohe me te parahi, ka taea te tukatuka tere.
E rua ngā rauemi e whakamahia whānuitia ana mō ngā mīhini mira: te maitai tere-rahi me te karāti sima. Ki te whakatauritea ki te mea tuatahi, he pakeke rawa te mea tuarua, ā, he kaha te kaha o te tapahi, ka taea te whakanui ake i te tere me te tere whāngai, te whakapai ake i te hua, te whakaiti i te kitea o te mīhini, me te tukatuka i ngā rauemi uaua ki te mīhini pērā i te maitai kore waikura/te konukōre titanium, engari he nui ake te utu, ā, ka tere te huri o te kaha tapahi. Mēnā he ngāwari te whati o te mīhini, ka taea te whakamahi i te mīhini.
Wā tuku: Hurae-27-2022
