Brazing bond type diamond tool with excellent cuttability and method of manufacturing the same

Abstract

The present disclosure provides a brazing bond type diamond tool having excellent cuttability and a method of manufacturing the same. The diamond tool includes a shank having a body and a tip portion formed along an edge of the body, and a brazing bond layer formed on the tip portion of the shank to secure diamond particles with a brazing bond. The tip portion is thinner than the body and is integrally formed with the body.

1 . A diamond tool comprising:
 a shank having a body and a tip portion formed along an edge of the body, the tip portion being thinner than the body and integrally formed with the body; and   a brazing bond layer formed on the tip portion of the shank to secure diamond particles with a brazing bond.   
     
     
         2 . The diamond tool according to  claim 1 , wherein the body has a thickness ranging from 1.0 mm to 3.0 mm. 
     
     
         3 . The diamond tool according to  claim 1 , wherein the diamond particles have an average particle diameter ranging from 25 to 50 mesh. 
     
     
         4 . The diamond tool according to  claim 1 , wherein the brazing bond comprises 1˜10 wt % of silicon (Si), 5˜15 wt % of chromium (Cr), 5˜15 wt % of cobalt (Co), and the balance of nickel. 
     
     
         5 . The diamond tool according to  claim 1 , wherein the diamond tool is a flat blade type diamond tool. 
     
     
         6 . A method of manufacturing a diamond tool comprising:
 (a) preparing a shank including a body and a tip portion formed along an edge of the body, the tip portion being thinner than the body and integrally formed with the body;   (b) depositing a metal powder for forming a brazing bond on the tip portion of the shank;   (c) setting diamond particles on the tip portion having the metal powder deposited thereon; and   (d) melting the metal powder to form a brazing bond.   
     
     
         7 . The method according to  claim 6 , wherein the body of the shank has a thickness ranging from 1.0 mm to 3.0 mm. 
     
     
         8 . The method according to  claim 6 , wherein the metal powder comprises 1˜10 wt % of silicon (Si), 5˜15 wt % of chromium (Cr), 5˜15 wt % of cobalt (Co) and the balance of nickel, and the melting the metal powder comprises melting the metal powder at 980-1200° C. to form the brazing bond. 
     
     
         9 . The method according to  claim 6 , wherein the diamond particles have an average particle size ranging from 25 to 50 mesh.