CBN vs. PCD: Nkhondo ya Superhard Cutting Tools - Kulowera Mozama mu Kupanga ndi Kuchita
CBN (Cubic Boron Nitride) CNC Kudula Zida
CBN, kapena Cubic Boron Nitride, ndi zinthu zopangidwa zomwe zimadziwika chifukwa cha kuuma kwake komanso kulimba kwake. Ndi yachiwiri kwa diamondi ponena za kuuma, zomwe zimapangitsa kuti zikhale zofunikira zopangira zida zodulira zomwe zimagwiritsidwa ntchito pamakina apamwamba kwambiri. Zida zodulira za CBN nthawi zambiri zimagwiritsidwa ntchito popanga zitsulo zolimba, zitsulo zotayidwa, ndi zida zina zamphamvu kwambiri zomwe zimakhala zovuta kuzikonza ndi zida zodulira wamba.
Njira Yopangira Zida za CBN:
Kupanga zida zodulira za CBN nthawi zambiri kumaphatikizapo kaphatikizidwe ka boron nitride (BN) pansi pamavuto akulu komanso kutentha kwambiri. Njirayi imayamba ndi ufa wa boron ndi mpweya wa nayitrogeni, womwe umakhala wovuta kwambiri (pamwamba pa 1500 ° C) kuti apange makhiristo a boron nitride (c-BN). Makristalowa amaphatikizidwa ndi zinthu za matrix, nthawi zambiri zomangira cobalt, kuti apange choyikapo kapena chida chodulira. Kuphatikiza uku kumapereka chida cha CBN ndi kuuma kwake kodabwitsa komanso kukana kuvala.
Kuyika kwa CBN kumatha kupangidwa mosiyanasiyana ndi makulidwe osiyanasiyana, kutengera zofunikira za makina. Chida chomaliza nthawi zambiri chimatenthedwa, pansi, ndi kuphimbidwa kuti chiwonjezeke bwino ntchito yake komanso kumaliza kwake. Kuthekera kwa chidacho kukhala ndi mbali zakuthwa pakutentha kwambiri kumapangitsa kukhala chisankho chabwino kwambiri pantchito zolemetsa m'mafakitale monga zamlengalenga, magalimoto, ndi zida.
PCD (Polycrystalline Diamond) CNC Kudula Zida
PCD, kapena Polycrystalline Diamondi, ndi zinthu zopangidwa pomanga pamodzi makristasi abwino a diamondi pansi pa kupanikizika kwakukulu ndi kutentha, zomwe zimapangitsa kuti pakhale chida champhamvu, cholimba chodula. Zida za PCD zimadziwika chifukwa chokana kuvala kwapadera, makamaka popanga zitsulo zopanda chitsulo monga aluminiyamu, mkuwa, mkuwa, komanso zida zophatikizika.
Njira Yopangira Zida za PCD:
Kupanga zida za PCD kumayamba ndikupanga ufa wa diamondi wabwino, womwe umasakanizidwa ndi chomangira chachitsulo, nthawi zambiri cobalt kapena ufa wina wachitsulo. Kusakaniza kumeneku kumayendetsedwa ndi kutentha kwambiri, kuthamanga kwambiri komwe kumatchedwa "sintering" mu makina osindikizira apadera. Panthawiyi, makhiristo a diamondi amalumikizana palimodzi, ndikupanga mawonekedwe olimba, a polycrystalline.
Zida za PCD zimapangidwa m'njira ziwiri zazikulu: monolithic ndi brazed. Mu njira ya monolithic, chida chonsecho chimapangidwa kuchokera ku PCD, pamene mu njira ya brazed, PCD yopyapyala imamangiriridwa ku gawo la carbide. Pambuyo pakuwotcha, zida za PCD zimasiyidwa ndikupukutidwa kuti ziwoneke bwino, kuwonetsetsa kuti m'mphepete mwake muli bwino komanso kutha kosalala. Atha kuthandizidwanso ndi zokutira kuti awonjezere kukana kwawo kuvala ndi okosijeni, zomwe zitha kupititsa patsogolo magwiridwe antchito awo pazinthu zina.
Zida za PCD nthawi zambiri zimagwiritsidwa ntchito podula kwambiri ndipo zimakhala zopindulitsa kwambiri pakupangira zida zomwe zimapangitsa kuti zida zachikhalidwe zivale kwambiri. Chifukwa cha kuuma kwawo kwapadera komanso kugundana kochepa, amapereka ntchito yabwino kwambiri pakumaliza komanso kuthamanga kwambiri.
Kuyerekeza pakati pa CBN ndi PCD CNC Cutting Tools
| Katundu | CBN (Cubic Boron Nitride) | PCD (Polycrystalline Diamondi) |
|---|---|---|
| Mapangidwe Azinthu | Zovuta, zopangidwa ndi boron nitride | Synthetic diamondi particles womangidwa pansi pa kupsyinjika kwakukulu |
| Kuuma | Wapamwamba kwambiri, wachiwiri kwa diamondi | Chokwera kwambiri, chovuta kwambiri chodziwika |
| Mapulogalamu | Zitsulo zowuma, zitsulo zotayidwa, ma aloyi otentha kwambiri | Zitsulo zopanda chitsulo, kompositi, aluminiyamu, mkuwa, etc. |
| Valani Kukaniza | Zabwino kwambiri, makamaka ndi zida zolimba, zomatira | Chapadera, makamaka pazitsulo zofewa, zopanda chitsulo |
| Kutentha Kukhazikika | Okwera kwambiri, amasamalira kutentha kwambiri | Zochepa, zokhudzidwa ndi kutentha kwakukulu |
| Chida Moyo | Moyo wautali wa chida mu makina ovuta komanso olemetsa | Moyo wautali kwambiri wa zida, makamaka pomaliza ntchito |
| Kudula Liwiro | Zoyenera kudulidwa molemera komanso kuthamanga kwapakati | Kuthamanga kwakukulu kwa mabala opepuka komanso apakati |
| Mtengo | Nthawi zambiri zotsika kuposa PCD | Zapamwamba chifukwa cha njira zopangira ndi zinthu |
| Makampani Odziwika | Azamlengalenga, magalimoto, kufa ndi nkhungu, mafakitale zitsulo | Zagalimoto, zakuthambo, zamagetsi, ndi mapulasitiki |
| Pamwamba Pamwamba | Kukhazikika kwapamwamba komanso kutha kwabwino pamtunda muzinthu zolimba | Kutsirizitsa kwabwino kwambiri pamwamba pazinthu zopanda chitsulo |
Kusiyana Kwakukulu:
Kugwirizana kwazinthu:
CBN ndiyoyenera makamaka pazinthu zolimba komanso zonyezimira monga zitsulo zolimba ndi chitsulo choponyedwa.
PCD ndiyabwino pazinthu zofewa monga aluminiyamu, mkuwa, ndi zophatikizika, zomwe zimakonda kuwononga zida zachikhalidwe mwachangu.
Kuchita pa Kutentha Kwambiri:
Zida za CBN zimatha kupirira kutentha kwambiri popanda kunyozeka, kuzipangitsa kukhala zogwira mtima kwambiri pamakina amphamvu kwambiri komanso kutentha kwambiri.
Zida za PCD, ngakhale zimakhala zovuta kwambiri, sizilekerera kutentha kwambiri ndipo zimatha kutaya m'mphepete mwamikhalidwe yotere.
Kuganizira za Mtengo:
Zida za CBN zimakhala zotsika mtengo kuposa zida za PCD, popeza PCD imafuna njira zopangira zovuta komanso zopangira zokha ndizokwera mtengo.
Surface Finish ndi Precision:
Zida za PCD ndizoyenera kwambiri kuti zitheke bwino kwambiri, makamaka pazinthu zopanda chitsulo.
Zida za CBN, ngakhale zili zolondola, zimapambana kwambiri pakulimba komanso kudula mwamphamvu m'malo mofika kumapeto kwapamwamba kwambiri pazinthu zofewa.
Zida zonse zodulira za CBN ndi PCD CNC zimapereka magwiridwe antchito apadera, koma zimakwaniritsa zosowa zosiyanasiyana zamakina. Zida za CBN ndi zabwino kwa zida zolimba, zolimba komanso zotentha kwambiri, pomwe zida za PCD zimawala mukamagwira ntchito ndi zitsulo zofewa komanso zophatikizika, zomwe zimapereka moyo wautali wa zida ndi ntchito yabwino yodula. Kusankha pakati pa ziwirizi kumadalira zinthu zomwe zimapangidwira, moyo wa zida zofunikira, komanso malo opangira makina.
