To provide a manufacturing method of a grindstone and a grindstone in which abrasive grains and holes are provided with desired density and dispersed uniformly.
After molding a first coated layer 2 at a cBN abrasive grain 1, coated particles 4 are produced by forming a second coated layer 3 which plastically deforms by a pressure smaller than the pressure that deforms the first coated layer 2, on the outside of the first coated layer 2. The pressure in performing pressure molding into a prescribed shape by using the coated particles 4 is made to be a pressure equal to or more than the pressure that plastically deforms the second coated layer 3. By this application of pressure, the second coated layer 3 deforms and flows, the first coated layers 2 come into contact with each other, and a molding 6 is formed which has a structure in which the flowed second coated layer 3 moves to the gap of the coated grains 4. By sintering this, the cBN abrasive grains 1 disperse with a prescribed interval that is determined by the size of the outer shape radius of the first coated layer 2, and a grindstone can be manufactured which has a structure in which holes are arranged with desired density among them.
| JP2008238389 | CMP PAD CONDITIONER |
| JP5954293 | A dressing device of the foaming urethane pad for polish |
| JPH0224053 | GRINDSTONE FOR LAPPING AND MANUFACTURE THEREOF |
ONO NAOTO
KASUGA SATOYUKI
ITO AKIRA
| JPH0775972A | 1995-03-20 | |||
| JP2010012545A | 2010-01-21 | |||
| JP2000354968A | 2000-12-26 | |||
| JP2000271870A | 2000-10-03 | |||
| JPH07246562A | 1995-09-26 | |||
| JPH05104443A | 1993-04-27 | |||
| JP2010179438A | 2010-08-19 | |||
| JP2003181765A | 2003-07-02 | |||
| JP2004001165A | 2004-01-08 | |||
| JPS6288578A | 1987-04-23 | |||
| JP2008018479A | 2008-01-31 |