1. ʻAno convex: Loaʻa kēia bit ma nā ʻano ʻelua, ka haku hoʻokahi a me ka luna pālua.Hoʻohana nui ʻia ka mea hope no nā bit DDP nui-diameter.
Hiki i nā Convex DDRs ke mālama i ka wili kiʻekiʻe i ka wā e wili ai i nā pōhaku abrasive paʻakikī, akā maikaʻi ʻole ka palahalaha o ka wili ʻana, no laila ʻaʻole kūpono ia no ka ʻenekinia wili e koi ana i ka palahalaha kiʻekiʻe o nā lua pahū.
2, ʻano palahalaha maka: ʻano ikaika a paʻa kēia ʻano o ka drill, kūpono no ka wili ʻana i ka pōhaku paʻakikī a paʻakikī loa, akā kūpono hoʻi no ka ʻeli ʻana i ka lua palahalaha ʻaʻole nā koi kiʻekiʻe o ka pōhaku paʻakikī a me ka pōhaku palupalu.
3. Concave 'ano: ka maka hope o ka bit poo me keia ano he conical depression, i hanaia e ka bit i loko o ke kaʻina hana o ka wili e malama i ke kikowaena hana o ka bit, a me ka lua wili pololei pololei.Loaʻa i kēia ʻano bit ka hopena hoʻokuʻu pauda maikaʻi a me ka wikiwiki wili ʻana, a ʻo ia ka bit DWB maʻamau i hoʻohana ʻia ma ka mākeke.
4, ka maka hope hohonu concave waena ʻano: ua ulu kēia ʻano o ka bit mai ke ʻano like o ka ʻāpana niho pōpō, ʻo ka ʻaoʻao waena o ka maka hope o ka ʻāpana he hohonu concave waena.
Hoʻohana ʻia ia no ka nucleation ma ke kaʻina hana o ka wili pōhaku.I ka wili ʻana i ka lua hohonu, hiki iā ia ke hōʻoia i ka palahalaha o ka pū.He kūpono wale ia no ka wili ʻana i ka pōhaku palupalu a me ka pōhaku paʻakikī waena.
Ka manawa hoʻouna: Jun-03-2019