公开(公告)号：EP1986810A1

公开(公告)日：2008-11-05

申请号：EP07709079.3

申请日：2007-02-23

申请人： EHWA DIAMOND IND. CO., LTD.

发明人： KIM, Tae-Woong ,  YUN, Joong-Cheul ,  SONG, Young-Choul ,  KIM, Sang-Beom ,  PARK, Jung-Nam ,  YOO, Suk-Hyun ,  KIM, Tae-Bong

IPC分类号： B23D61/02

CPC分类号： B28D1/124 ,  B22F2005/001 ,  B22F2998/00 ,  B22F2998/10 ,  B22F2999/00 ,  B28D1/041 ,  C22C1/1084 ,  C22C32/00 ,  C22C33/0207 ,  C22C2026/006 ,  C22C26/00 ,  B22F1/0003 ,  B22F3/02 ,  B22F3/14 ,  B22F9/04 ,  B22F2202/01

摘要： The present invention relates to a cutting tip for a cutting tool, which is used in cutting or drilling a brittle workpiece such as stone, bricks, concrete, and asphalt and has an excellent cutting speed and a long lifetime, a method of manufacturing the cutting tip, and a cutting tool including the cutting tip. The cutting tip includes an abrasive material and a sintered bonding material, wherein the bonding material is formed of a metal matrix; the metal matrix includes a phase II and/or pore having a certain size at a certain volume fraction; and the phase II is one of a non-metallic inclusion and ceramic. According to an aspect of the present invention, there is provided a cutting tip having excellent cutting speed and a long lifetime at a much lower price.