Title:
GRINDING WHEEL
Document Type and Number:
Japanese Patent JP2023003964
Kind Code:
A
Abstract:
To provide a grinding wheel capable of improving efficiency and quality of grinding.SOLUTION: A grinding wheel for grinding a workpiece by creep feed grinding, is equipped with a disc-shaped wheel base, a plurality of first grinding wheels including first abrasive grains and provided on one end surface side of the wheel base, and a plurality of second grinding wheels including second abrasive grains and provided on the one end surface side of the wheel base. The wheel base is divided into a first region and a second region by a straight line dividing the one end surface of the wheel base into two. The first grinding wheels are aligned in an arc-shape in the first region, and the second grinding wheels are aligned in an arc-shape in the second region. Distances from a center of the wheel base to the second grinding wheels are shorter than distances of the center of the wheel base to the first grinding wheels. Hardness of the first grinding wheels is lower than hardness of the second grinding wheels. A grain size of the first abrasive grains and a grain size of the second abrasive grains are the same.SELECTED DRAWING: Figure 3
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Inventors:
YAMAMOTO KEISUKE
NAKANO KEISUKE
SHIMAZU RYO
SHINKAI IBUKI
SUZUKI KEIICHI
NAKANO KEISUKE
SHIMAZU RYO
SHINKAI IBUKI
SUZUKI KEIICHI
Application Number:
JP2021105375A
Publication Date:
January 17, 2023
Filing Date:
June 25, 2021
Export Citation:
Assignee:
DISCO ABRASIVE SYSTEMS LTD
International Classes:
B24D7/06; B24B7/02; B24D7/14; H01L21/304
Attorney, Agent or Firm:
Matsumoto
Tomohiro Okamoto
Takahiro Kasahara
Hideaki Okamoto
Takayuki Okano
Toshikazu Imato
Tomohiro Okamoto
Takahiro Kasahara
Hideaki Okamoto
Takayuki Okano
Toshikazu Imato