Title:
VITRIFIED BONDED SUPERABRASIVE WHEEL
Document Type and Number:
WIPO Patent Application WO/2019/073753
Kind Code:
A1
Abstract:
This vitrified bonded superabrasive wheel is provided with a core, and a superabrasive grain layer provided on the core, wherein: the superabrasive grain layer includes a plurality of superabrasive grains and vitrified bonds joining the plurality of superabrasive grains together; the vitrified bonds include a plurality of bond bridges which are positioned between the plurality of superabrasive grains to join the plurality of superabrasive grains together; at least 80% of the plurality of superabrasive grains are joined to adjacent superabrasive grains by means of the bond bridges; and at least 90% of the plurality of bond bridges in a cross section through the superabrasive grain layer have a thickness at most equal to the average particle size of the superabrasive grains, and have a length that is greater than the thickness.
Inventors:
AMINO SHUICHI (JP)
ISHIZU TOMOHIRO (JP)
ISHIZU TOMOHIRO (JP)
Application Number:
PCT/JP2018/034362
Publication Date:
April 18, 2019
Filing Date:
September 18, 2018
Export Citation:
Assignee:
ALMT CORP (JP)
International Classes:
B24D3/14; B24D3/00
Domestic Patent References:
| WO2004106001A1 | 2004-12-09 |
Foreign References:
| US20170008153A1 | 2017-01-12 | |||
| JPS6294262A | 1987-04-30 | |||
| JP2016172306A | 2016-09-29 | |||
| JP2014083621A | 2014-05-12 | |||
| JP2009061554A | 2009-03-26 | |||
| JP2014012328A | 2014-01-23 | |||
| JP2003532550A | 2003-11-05 | |||
| JP2016137536A | 2016-08-04 | |||
| JP2017197407A | 2017-11-02 | |||
| JP2002224963A | 2002-08-13 |
Other References:
See also references of EP 3670082A4
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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