	US 7,527,050 B2
	Method for fabricating multi-layer, hub-less blade
Robert F. Corcoran, Jr., Holden, Mass. (US)
Assigned to Saint-Gobain Abrasives Technology Company, Worcester, Mass. (US)
Filed on May 18, 2006, as Appl. No. 11/436,369.
Application 11/436369 is a division of application No. 10/400007, filed on Mar. 26, 2003, granted, now 7,073,496.
Prior Publication US 2006/0201281 A1, Sep. 14, 2006
Int. Cl. B28D 1/04 (2006.01); B24D 11/00 (2006.01)

U.S. Cl. 125—15 [51/297; 51/309; 125/18; 451/57; 451/65; 451/533; 451/542]

27 Claims

1. A method for fabricating an abrasive cutting tool, the method comprising:

(a) providing a deposition disc having at least one deposition surface;

(b) placing the disc in a bath having a fine grit abrasive dispersed therein;

(d) removing the disc from the bath;

(e) activating a surface of the first layer;

(f) placing the disc in a bath having a second abrasive of a second grit size larger than that of the fine grit abrasive dispersed therein;

(g) depositing a second layer of the second abrasive and electroplating material onto the first layer;

(h) removing the disc from the bath;

(i) activating a surface of the second layer;

(j) placing the disc in a bath having the fine grit abrasive dispersed therein;

(k) depositing a third layer of the fine grit abrasive and electroplating material onto the second layer; and

(l) removing the disc from the first layer, to produce a multi-layered cutting tool having abrasive particulate dispersed substantially completely therethrough, with a central layer of second grit size abrasive disposed between two layers of fine grit abrasive.