Title:
SUPERABRASIVE WHEEL AND MULTI-SUPERABRASIVE WHEEL
Document Type and Number:
WIPO Patent Application WO/2019/031174
Kind Code:
A1
Abstract:
This superabrasive wheel is provided with: a hard substrate formed of cemented carbide having a Young's modulus of at least 300 GPa; and an annular superabrasive layer disposed at the outer circumference of the hard substrate. A cross section of the superabrasive wheel, obtained by cutting the superabrasive layer along a plane including the rotational axis of the superabrasive wheel and being parallel to the rotational axis, has an axisymmetric shape. In a region, of the cross section, that impinges on a workpiece: a first portion where the outer diameter of the superabrasive wheel becomes maximum and a second portion where the outer diameter is smaller than that of the first portion, are provided; the first portion is located on the axis of symmetry; and a curved surface portion is formed so as to abut on a lateral surface of the superabrasive layer in the cross-section of the superabrasive layer.
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Inventors:
YAMAMOTO YOSHIHITO (JP)
KUMAZAWA TERUYUKI (JP)
KUMAZAWA TERUYUKI (JP)
Application Number:
PCT/JP2018/026963
Publication Date:
February 14, 2019
Filing Date:
July 18, 2018
Export Citation:
Assignee:
ALMT CORP (JP)
International Classes:
B24D5/12; B24D3/00
Foreign References:
| JP2016096321A | 2016-05-26 | |||
| JP2003053723A | 2003-02-26 | |||
| JPS5386158A | 1978-07-29 | |||
| JP2003039333A | 2003-02-13 | |||
| JP2015018965A | 2015-01-29 | |||
| JPH0476356U | 1992-07-03 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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