CBN Insets vs. Carbide Insets: Theko e sebetsang hantle ea litšenyehelo bakeng sa ho sebetsa ka thata.
CBN Insets vs. Carbide Insets: Theko e sebetsang hantle ea litšenyehelo bakeng sa ho sebetsa ka thata.
Tlhahisong ea sejoale-joale, mochini oa thepa e thata o ntse o ata haholo, haholo indastering e kang ea likoloi, sefofane, le lisebelisoa, moo ho thatafala ha lisebelisoa hangata ho fetang HRC50. Maemong a joalo, khetho ea lisebelisoa e ama ka kotloloho tlhahiso, boleng ba mochini, le litšenyehelo ka kakaretso. Har'a likhetho tse fumanehang,CBN (Cubic Boron Nitride) e kenyalelihlahisoa tsa carbideke litharollo tse peli tse kholo.
Sengoliloeng sena se bapisa likarolo tse peli ho ea ho tse nne tsa bohlokoa-boima, ho hanyetsa mocheso, bophelo ba lisebelisoa, le litšenyehelo- ho hlakisa meeli e nepahetseng ea ts'ebeliso ea lisebelisoa tsa CBN. E boetse e fana ka boithuto ba linyeoe tsa melemo ea litšenyehelo molemong oa ho lokisa likarolo tsa makoloi.
I. Papiso ya Tshebetso
1. Ho thatafala
Lisebelisoa tsa CBN: Ea bobeli feela ho daemane ka ho thatafala, e loketseng bakeng sa ho lokisa litšepe tse thata ka holimo ho HRC50, metallurgy ea phofo, le li-alloys tse phahameng tsa mocheso.
Lisebelisoa tsa Carbide: Ho thatafala ho pota HRA90. Ho roala lisebelisoa ho potlakisa haholo ha ho etsoa machining ka holimo ho HRC45.
2. Ho hanyetsa Mocheso
Lisebelisoa tsa CBN: E mamella mocheso ho fihlela ho 1200 ° C, e loketseng ho itšeha ka lebelo le phahameng, ho fokotsa tšebeliso ea pholileng.
Lisebelisoa tsa Carbide: Ho hanyetsa mocheso ho fihlela ho ~ 800 ° C; e sekametseng ho deformation ea polasetiki le ho roaloa ha flank ka lebelo le phahameng.
3. Bophelo ba Lisebelisoa
Lisebelisoa tsa CBN: E ka tšoarella nako e telele ka makhetlo a 5-10 ho feta carbide ha ho etsoa thepa e thata, e fanang ka botsitso bo boholo.
Lisebelisoa tsa Carbide: Bophelo ba lisebelisoa bo theoha haholo holim'a lisebelisoa tse thata, tse hlokang ho nkeloa sebaka khafetsa le ho baka nako ea ho theoha.
4. Litšenyehelo
Lisebelisoa tsa CBN: Litsenyehelo tse phahameng tsa pele ho kenyelletso ka 'ngoe, empa litšenyehelo ka karolo e 'ngoe li fokotseha ka lebaka la bophelo bo bolelele.
Lisebelisoa tsa Carbide: Theko e tlase ea pele, empa ho nkela sebaka khafetsa ho phahamisa litšenyehelo.
II. Meeli ea Kopo ea Lisebelisoa tsa CBN
Ho ipapisitsoe le matšoao ana, maemo a nepahetseng a ho kenya CBN a ka akaretsoa joalo ka:
Boima ba lintho tse bonahalang: HRC50 le holimo, joalo ka litšepe tse thata, metallurgy ea phofo, le li-alloys tsa mocheso o phahameng.
Boholo ba batch ea tlhahiso: Li-volume tse mahareng ho isa ho tse kholo, moo melemo ea bophelo ba lisebelisoa e fokotsang litšenyehelo.
Litlhoko tse nepahetseng: Dimensional tolerance IT6 kapa molemo, holim'a roughness Ra ≤ 0.8 μm.
Mokhoa oa ho sebetsa: Ho itšeha ka lebelo le phahameng, ho qeta halofo, kapa ho qeta.
Ha boima ba thepa bo le tlase (ka tlase ho HRC45), boholo ba beche bo nyane, kapa litlhoko tse nepahetseng li lekanyelitsoe, ho kenya carbide e ntse e le khetho e bolokang chelete e ngata.
III. Thuto ea Taba ea Karolo ea Likoloi
Ho nka mohlala oa ho qeta kalafo ka mor'a mocheso oa lisebelisoa tsa ho tsamaisa likoloi e le mohlala:
Lintho tse bonahalang: 20CrMnTi, e thatafalitsoeng ho HRC58–62.
Litlhoko tsa mochini: Ho nepahala ha dimensional IT6, bokaholimo ba bokaholimo Ra0.8.
| Ntho | Kenya CBN | Carbide Insert |
|---|---|---|
| Kenya theko | ~ 5× holimo ho feta carbide | Baseline |
| Bophelo ba lisebelisoa | 6 × ho feta | 1× (ea motheo) |
| Nako ea ho phomola bakeng sa ho fetola lisebelisoa | Tlase | Phahameng |
| Ho sebetsa hantle ha mochini | Ho itšeha ka lebelo le phahameng, + 20% e sebetsang hantle | Ho itšeha ka lebelo le tlase, ho hlokahala sepholi |
| Litšenyehelo ka karolo | ~ 15% tlase | Baseline |
Sephetho:Ka boima bo phahameng, batch-batch, lisebelisoa tsa lisebelisoa tse phahameng, le hoja ho kenngoa ha CBN ho theko e boima haholo ka sengoathoana, bophelo ba bona ba nako e telele, liphetoho tse fokolang tsa lisebelisoa, le bokhoni bo phahameng bo fokotsa litšenyehelo tsa karolo e 'ngoe le e' ngoe ha u ntse u netefatsa boleng bo tsitsitseng le litekanyetso tse tlaase tsa likhahla.
IV. Qetello le Foromo ea Khetho ea Lisebelisoa
Bakeng sa li-workpieces tse ka holimo ho HRC50, tse nang le litlhoko tse phahameng tse nepahetseng le tse ngata,Lisebelisoa tsa CBN li fana ka tekanyo e ntle ka ho fetisisa ea ts'ebetso ea litšenyehelo, ho fokotsa haholo litšenyehelo tsa kakaretso tsa tlhahiso le ho matlafatsa katleho. Bakeng sa boima bo tlase kapa mesebetsi e nyane,lisebelisoa tsa carbide li lula li sebetsa ebile li na le moruo.
Foromo e Nolofalitsoeng ea Khetho ea Lisebelisoa:
Haeba (Material Hardness ≥ HRC50) LE (Batch Size ≥ Medium) LE (Precision ≥ IT6)→ KhethaKenya CBN
E 'ngoe→ KhethaCarbide Insert
Likhoebo li ka sebelisa foromo ena e le sesupo sa liqeto tse potlakileng, ha li ntse li nahana ka bokhoni ba lisebelisoa, lebelo la ho itšeha le maemo a pholiso. Ho theha mokhoa o felletseng oa tlhahlobo ea litšenyehelo bakeng sa khetho ea lisebelisoa ho tla eketsa katleho ea tlhahiso le tlholisano.
