Invention Grant
- Patent Title: Grinding wheel manufacturing method and grinding wheel
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Application No.: US14372082Application Date: 2013-01-31
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Publication No.: US09908216B2Publication Date: 2018-03-06
- Inventor: Shinji Soma , Naoto Ono , Tomoyuki Kasuga , Ryo Ito
- Applicant: JTEKT CORPORATION
- Applicant Address: JP Osaka-shi
- Assignee: JTEKT CORPORATION
- Current Assignee: JTEKT CORPORATION
- Current Assignee Address: JP Osaka-shi
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2012-018046 20120131; JP2012-018047 20120131; JP2012-125733 20120601; JP2012-205688 20120919
- International Application: PCT/JP2013/052136 WO 20130131
- International Announcement: WO2013/115295 WO 20130808
- Main IPC: B24D3/14
- IPC: B24D3/14 ; B24D18/00 ; B24D5/02 ; B24D3/18 ; C09K3/14

Abstract:
A method of manufacturing a grinding wheel, and a grinding wheel. After a first overcoat layer is formed on each of CBN abrasive grains, a second overcoat layer that is plastically deformed under a pressure lower than a pressure under which the first overcoat layer is deformed, is formed on the outer side of the first overcoat layer to manufacture coated abrasive grains. The coated abrasive grains are subjected to pressure-molding to be formed into a prescribed shape under a pressure that is equal to or higher than a pressure under which the second overcoat layer is plastically deformed. The second overcoat layers are deformed and flow to form a molded material having a structure in which the first overcoat layers contact each other, and the flowing second overcoat layers are moved into clearances between the coated abrasive grains. By sintering this, CBN abrasive grains are dispersed at a prescribed distance that is determined by the degree of outer radius of each first overcoat layer, and vacancies are arranged therebetween at a prescribed density.
Public/Granted literature
- US20140357171A1 GRINDING WHEEL MANUFACTURING METHOD AND GRINDING WHEEL Public/Granted day:2014-12-04
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