
ʻO kēia kahi Mea Hana Trepanning (ʻike pū ʻia he hollow drill a core drill), he mea hana ʻoki kūikawā no ka mīkini puka hohonu e hoʻoneʻe pono ai i nā mea ma ke ʻoki ʻana i kahi annular groove, me ka waiho ʻana i kahi kumu paʻa paʻa. He mea kūpono ia no ka hoʻoheheʻe ʻana i nā lua hohonu nui, e hōʻemi nui ana i ka ʻōpala a me ka manawa mīkini.
| ʻāpana | Hana | Mea/Hiʻona |
|---|---|---|
| Hoʻokomo ʻokiʻoki | Nā kihi ʻoki mua no ka wehe ʻana i nā mea annular | Carbide (e laʻa, YG8, WC-Co) a i ʻole carbide i uhi ʻia, kūpono no ke kila kalapona, ke kila kila, nā alloys titanium, etc. |
| Papa alakai | E hoʻopaʻa i ka mea hana a hōʻoia i ka pololei o ka puka / cylindricity | ʻO nā mea hoʻokomo tungsten carbide, me ka wehe ʻana o 0.02-0.05 mm mai ka paia puka e hōʻemi i ka pale ʻana o ka mea hana. |
| Kino Mea Hana | Hoʻokomo i nā mea hoʻokomo a alakaʻi i nā pads, hoʻohui i nā kahawai wai hoʻomaha | 42CrMo kila kila, mālama ʻia i ka wela i ka HRC 30-35 no ka paʻakikī kiʻekiʻe a me ke kūpaʻa hopena. |
| Ikepili Hoʻohui | Hoʻohui ʻia i nā paipu hoʻoluhi puka hohonu a i ʻole nā mea paʻahana | ʻO ke kaula pololei a i ʻole ka taper kūpono e hōʻoia i ka concentricity a me ka hoʻoili ʻana. |
| Māhele Māhele | Nā kikoʻī maʻamau | Nā memo |
|---|---|---|
| Anawaena Hole kūpono | φ80–φ500 mm | Loaʻa nā anawaena nui ma ke noi. |
| ʻO ka hohonu o ka mīkini kiʻekiʻe | 5000 mm | Aia ma muli o ka hahau ʻana o ka mīkini a me ka lōʻihi o ka paipu ʻeha. |
| Ka helu o na mea hookomo oki | 4–8 mau ʻāpana | Māhele like no ka ʻoki paʻa. |
| Ka helu o na Papa alakai | 4-6 mau ʻāpana | Hoʻopili ʻia me nā mea hoʻokomo no ke alakaʻi maikaʻi loa. |
| Pumi Hooluu | 5–15 MPa | E hōʻoia i ka hoʻokuʻu ʻia ʻana a hoʻokuʻu ʻia me ka maʻalahi. |
| Manaʻo ʻia nā ʻoki ʻoki | ʻO ka māmā oki v = 40–80 m/min Laki hānai f = 0.15–0.4 mm/rev | Hoʻoponopono ma muli o nā mea hana; ʻae nā mea hoʻokomo carbide i nā wikiwiki kiʻekiʻe. |
| Mīkini Pono | Hoʻomanawanui Hole IT8–IT10 ʻO ka ʻili ʻili Ra 3.2–6.3 μm | Pono ka hoʻopau ʻana ma hope (e like me ka honing) no ka pololei kiʻekiʻe. |