CBN Insets vs. Carbide Insets: Iyo Mutengo-Kushanda Formula yeHama Material Machining
CBN Insets vs. Carbide Insets: Iyo Mutengo-Kushanda Formula yeHama Material Machining
Mukugadzira kwemazuva ano, machini akaomarara ari kuwedzera kuwanda, kunyanya mumaindasitiri akadai semota, aerospace, uye maturusi, uko kuoma kwezvishandiso zvinowanzopfuura HRC50. Mumamiriro ezvinhu akadaro, kusarudzwa kwezvishandiso kunokanganisa zvakananga kugadzirwa, mhando yekugadzira, uye mutengo wakazara. Pakati pezvisarudzo zviripo,CBN (Cubic Boron Nitride) inoisauyecarbide kuisamhinduro mbiri huru.
Ichi chinyorwa chinofananidza maviri pamativi mana akakosha-kuoma, kuramba kupisa, hupenyu hwematurusi, uye mutengo-kujekesa iwo akakwana ekushandisa miganhu yeCBN inoisa. Inopa zvakare mutengo-bhenefiti kesi yekudzidza mumotokari chikamu machining.
I. Kuenzanisa Kwekuita
1. Kuoma
CBN Inopinza: Chechipiri chete kune dhaimani mukuoma, yakanakira kugadzira simbi dzakaomeswa pamusoro peHRC50, simbi yehupfu, uye yakakwirira-tembiricha alloys.
Carbide Insets: Kuoma kwakatenderedza HRA90. Kupfeka kwechishandiso kunomhanyisa zvakanyanya kana uchigadzira zvinhu pamusoro peHRC45.
2. Kupikisa Kupisa
CBN Inopinza: Kutsungirira tembiricha inosvika 1200 ° C, inokodzera kuchekwa kwekukurumidza kuoma, kuderedza kushandiswa kunotonhorera.
Carbide Insets: Kudzivirira kupisa kusvika ~ 800 ° C; inotarisana nepurasitiki deformation uye flank kupfeka nekumhanya kwakanyanya.
3. Chishandiso Hupenyu
CBN Inopinza: Inogona kugara 5-10 nguva yakareba kupfuura carbide paunenge uchigadzira zvinhu zvakaomeswa, zvichipa kugadzikana kwakanyanya.
Carbide Insets: Upenyu hwechishandiso hunodonha zvakanyanya pamidziyo yakaoma, inoda kugara ichitsiviwa uye kukonzera kuderera.
4. Mutengo
CBN Inopinza: Mutengo wepamusoro wepamusoro pekuisa, asi mutengo pachikamu unodzikira nekuda kwehupenyu hurefu.
Carbide Insets: Mutengo wakaderera wekutanga, asi kugara uchitsiva kunokwidza mutengo wakazara.
II. Miganhu Yekushandisa yeCBN Inopinza
Zvichienderana nezviratidzo izvi, iwo akakwana mamiriro ekuiswa kweCBN anogona kupfupikiswa se:
Kuoma kwezvinhu: HRC50 uye pamusoro, senge simbi dzakaomeswa, poda metallurgy, uye yakakwirira-tembiricha alloys.
Kugadzira batch size: Epakati kusvika kuhombe mavhoriyamu, uko chishandiso hupenyu hwekushandisa chinobvisa mutengo.
Precision zvinodiwa: Dimensional kushivirira IT6 kana zviri nani, kushata kwepamusoro Ra ≤ 0.8 μm.
Machining nzira: High-speed yakaoma kutema, semi-kupedza, kana kupedza.
Kana kuoma kwezvinhu kwakadzikira (pasi peHRC45), saizi yebhechi idiki, kana kuti zvinodiwa nemazvo zviri pakati nepakati, kuiswa kwecarbide kunoramba kuri sarudzo isingadhuri.
III. Automotive Component Case Study
Kutora mushure-kupisa-kurapa kupedzisa kwemagiya ekufambisa mota semuenzaniso:
Material: 20CrMnTi, yakaoma kusvika HRC58-62.
Machining zvinodiwa: Dimensional kurongeka IT6, pamusoro roughness Ra0.8.
| Item | CBN Insert | Carbide Insert |
|---|---|---|
| Isa mutengo | ~ 5 × yakakwirira kupfuura carbide | Baseline |
| Tool life | 6 × kureba | 1× (yekutanga) |
| Nguva yekuzorora yekuchinja chishandiso | Low | High |
| Machining kunyatsoshanda | High-speed yakaoma kutema, + 20% kunyatsoshanda | Low-speed yekucheka, inotonhorera inodiwa |
| Mutengo pachikamu | ~ 15% pasi | Baseline |
Mhedzisiro:Muhupamhi hwekuoma, hukuru-batch, high-precision gear machining, kunyange zvazvo CBN inoisa inodhura pachidimbu, hupenyu hwavo hurefu, zvishoma zvekushandura zvishandiso, uye kushanda kwepamusoro kunoderedza mari imwe neimwe pavanenge vachivimbisa hutano hunoenderana uye kuderera kwezvimedu.
IV. Mhedziso uye Sarudzo Yekushandisa Formula
Zvemaworkpiece ari pamusoro peHRC50, ane yakanyanya kurongeka uye hombe-batch zvinodiwa,CBN inoisa inopa yakanakisa mutengo-kuita chiyero, zvakanyanya kuderedza mutengo wekugadzira uye kuwedzera kushanda zvakanaka. Zvekuomarara zvishoma kana mabasa madiki-batch,carbide inoisa inoramba ichishanda uye ine hupfumi.
Sarudzo Yekushandisa Yakareruka:
Kana (Material Hardness ≥ HRC50) UYE (Batch Size ≥ Medium) UYE (Precision ≥ IT6)→ SarudzaCBN Insert
Zvimwe→ SarudzaCarbide Insert
Mabhizinesi anogona kushandisa fomula iyi seyereferensi yekukurumidza sarudzo, ukuwo uchifunga nezve kugona kwemidziyo, kumhanya kwekucheka, uye kutonhora mamiriro. Kumisikidza yakazara mutengo-bhenefi yekuongorora modhi yekusarudza maturusi kuchawedzera kugona kwekugadzira uye kukwikwidza.
