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1. WO2020196104 - CUTTING TOOL, AND METHOD FOR MANUFACTURING OPTICAL FIBER BASE MATERIAL

Publication Number WO/2020/196104
Publication Date 01.10.2020
International Application No. PCT/JP2020/011788
International Filing Date 17.03.2020
IPC
B24D 7/14 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
24GRINDING; POLISHING
DTOOLS FOR GRINDING, BUFFING OR SHARPENING
7Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
14Zonally-graded wheels; Composite wheels comprising different abrasives
B24D 5/14 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
24GRINDING; POLISHING
DTOOLS FOR GRINDING, BUFFING OR SHARPENING
5Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
14Zonally-graded wheels; Composite wheels comprising different abrasives
B24B 5/40 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
24GRINDING; POLISHING
BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
5Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
36Single-purpose machines or devices
40for grinding tubes internally
B24D 3/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
24GRINDING; POLISHING
DTOOLS FOR GRINDING, BUFFING OR SHARPENING
3Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
C03B 37/012 2006.01
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
BMANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL; SUPPLEMENTARY PROCESSES IN THE MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL
37Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
01Manufacture of glass fibres or filaments
012Manufacture of preforms for drawing fibres or filaments
Applicants
  • 住友電気工業株式会社 SUMITOMO ELECTRIC INDUSTRIES, LTD. [JP]/[JP]
Inventors
  • 中西 哲也 NAKANISHI Tetsuya
  • 永島 拓志 NAGASHIMA Takuji
Agents
  • 特許業務法人 信栄特許事務所 SHIN-EI PATENT FIRM, P.C.
Priority Data
2019-06244928.03.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) CUTTING TOOL, AND METHOD FOR MANUFACTURING OPTICAL FIBER BASE MATERIAL
(FR) OUTIL DE COUPE ET PROCÉDÉ DE FABRICATION DE MATÉRIAU DE BASE POUR FIBRE OPTIQUE
(JA) 切削工具および光ファイバ母材製造方法
Abstract
(EN)
This cutting tool (40) comprises a shank part (41), and a cutting part (42) provided to one end of the shank part (41). The cutting part (42) has a first region (51) provided to one end of the cutting tool (40), and a second region (52) positioned closer to the center of the cutting tool (40) than is the first region (51). Abrasive grains are anchored to the first region (51) and the second region (52). The average grain diameter of the abrasive grains in the second region (52) is less than the average grain diameter of the abrasive grains in the first region (51).
(FR)
L’invention concerne un outil de coupe (40) comprenant une partie tige (41), et une partie de coupe (42) disposée à une extrémité de la partie tige (41). La partie de coupe (42) a une première région (51) disposée à une extrémité de l'outil de coupe (40), et une seconde région (52) positionnée plus près du centre de l'outil de coupe (40) que ne l’est la première région (51). Des grains abrasifs sont ancrés dans la première région (51) et dans la seconde région (52). Le diamètre moyen de grain des grains abrasifs dans la seconde région (52) est inférieur au diamètre moyen de grain des grains abrasifs dans la première région (51).
(JA)
切削工具(40)は、シャンク部(41)と、シャンク部(41)の一端に設けられた切削部(42)と、を備える。切削部(42)は、切削工具(40)の一端に設けられた第1領域(51)と、第1領域(51)よりも切削工具(40)の中央寄りに位置する第2領域(52)とを有する。第1領域(51)および第2領域(52)には、砥粒が固着される。第2領域(52)における砥粒の平均粒径が、第1領域(51)における砥粒の平均粒径よりも小さい。
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