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Patent Searching and Data


Title:
LAPPING APPARATUS AND LAPPING METHOD
Document Type and Number:
Japanese Patent JP3687654
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To control the geometrical shape of a working surface along the axial direction of a work only under a machining condition.
SOLUTION: This lapping apparatus includes: a lapping film 11; a shoe 21: a shoe pressing unit 30 pressing the shoe 21 toward the work 61 to press the abrasive grain surface of the lapping film 11 to the work 61 and freely adjusting the shoe pressing force; an oscillation unit 50 for applying oscillation to the work 61; a rotary encoder S2 for detecting the relative oscillation position of the work 61 to the lapping film 11 in oscillation; and a controller 100. The controller 100 variably controls the shoe pressing force according to the oscillation position of the work in the process of machining, thereby controlling the geometrical shape of the working surface along the axial direction of the work 61 to be flat, medium-projected or medium-recessed.


Inventors:
Takafumi Watanabe
Masahiko Iizumi
Kiyoshi Hasegawa
Masahiro Komata
Takashi Ogino
Tomohiro Kondo
Kazuo Takeda
Yoshiyuki Senda
Matsushita Yasushi
Application Number:
JP2003034073A
Publication Date:
August 24, 2005
Filing Date:
February 12, 2003
Export Citation:
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Assignee:
Nissan Motor Co., Ltd
International Classes:
B24B21/16; F01L1/04; (IPC1-7): B24B21/16; F01L1/04
Domestic Patent References:
JP10217090A
Attorney, Agent or Firm:
Mikio Hatta
Atsushi Nogami
Yasuo Nara
Etsuko Saito
Katsuyuki Utani
Toshifumi Fujii