Title:
DEVICE AND METHOD FOR MACHINING NEUTRON LENS MEMBER
Document Type and Number:
Japanese Patent JP3426544
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To form an fine annular protrusion on the surface of a neutron lens member, such as glassy carbon, with high precision and excellent surface coarseness.
SOLUTION: This device comprises a rotary table 2 to hold a plate-form neutron lens member 1 and rotate centering around a rotary axis Z orthogonal to the surface of the member, a disc-form metal bond grinding wheel 3 having one of a plurality of taper surfaces situated at an outer peripheral part, a grinding wheel drive device 4 to rotationally drive a magnet around its axis A and move the grinding wheel relatively with the rotary table, an electrode 5 having a surface approaching one or a plurality of the surfaces of the grinding wheel, a voltage applying device 6 to apply a voltage for electrolysis on a space between the grinding wheel and the electrode, and a grinding liquid feeding device 8 to feed conductive grinding liquid to a space between the grinding wheel and the electrode. The angle of one or a plurality of taper surfaces is formed more in an acute state than the angle of a V-shaped groove formed in the surface of the neutron lens member. A grinding wheel drive device 4 is positioned in a state that the axis of the grinding wheel is inclined based on the rotary axis of the neutral lens member, and an inclination angle in the position is slightly oscillated.
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Inventors:
Tadashi Ohmori
Yutaka Yamagata
Shinya Morita
Sei Moriyasu
Hirohiko Shimizu
Yutaka Yamagata
Shinya Morita
Sei Moriyasu
Hirohiko Shimizu
Application Number:
JP24252399A
Publication Date:
July 14, 2003
Filing Date:
August 30, 1999
Export Citation:
Assignee:
RIKEN
International Classes:
B23H5/00; B23H5/08; B24B13/00; B24B13/015; B24B13/04; B24B19/02; B24B53/00; B24B53/013; B24B53/06; B24D3/00; B24D3/34; B24D7/18; (IPC1-7): B24B13/00; B24B19/02; B24B53/00
Domestic Patent References:
| JP691510A | ||||
| JP10225865A | ||||
| JP58126056A |
Attorney, Agent or Firm:
Minoru Hotta (1 person outside)
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