Diamond Cutting Tool and Manufacturing Method Thereof

Abstract

A manufacturing method of a diamond cutting tool is characterized in that the metal coated diamond particles are arranged on a region of a steel body portion intended to be used as a cutting edge, and then adhered to the body portion through the electro-deposition whereby the manufacturing time is reduced, the diamond particles are securely adhered to the body portion, and the lifetime of the cutting tool is prolonged as well.

1 . A method for manufacturing a diamond cutting tool, comprising the steps of:
 coating the diamond particles with metal; arranging the metal coated diamond particles on a region of a steel body portion intended to be used as a cutting edge; immersing the body portion in a plating bath filled with an electrolyte; and performing the electro-deposition in such a manner that the body portion is negative-biased and a separate metal plate installed in the plating bath for plating is positive-biased, thereby adhering the metal coated diamond particles to the body portion.   
   
   
       2 . The method as claimed in  claim 1 , wherein the diamond particles are arranged in multi-layer and electro-deposited. 
   
   
       3 . The method as claimed in  claim 1 , wherein the metal coating the diamond particles is iron or cobalt with excellent magnetic property. 
   
   
       4 . The method as claimed in  claim 3 , wherein when the metal coated diamond particles are arranged on the body portion, the diamond particles are fixed to the body portion by a magnetic force generated between the metal coating layer and the body portion through magnetization of the body portion. 
   
   
       5 . The method as claimed in  claim 1 , wherein the diamond particles are coated with metal by means of electro-deposition or fusion welding. 
   
   
       6 . A diamond cutting tool manufactured by the method of  claim 1 . 
   
   
       7 . A diamond cutting tool manufactured by the method of  claim 4 .