Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ULTRAFINE HOLE PUNCHING METHOD AND PUNCHING MACHINE
Document Type and Number:
WIPO Patent Application WO/2004/028721
Kind Code:
A1
Abstract:
An ultrafine hole punching machine (10) comprising a metallic holder member (13) secured with a ceramic fiber punch of 50 μm thick or less while projecting one end thereof slightly from one end face in the longitudinal direction, a member (21) for supporting the holder member slidably, a die 23 having a straight die hole (23f) located in the axial direction of the punch while spaced apart from the forward end thereof, a member for securing the slidable supporting member and the die, and a driving section (31) for moving the holder member along the slidable supporting member. When a voltage is applied while keeping a discharge distance between the surface of the die and the forward end of the punch provided with a metallic film on the surface, discharge takes place and a die hole is made.

Inventors:
Mori, Toshihiko (1-18-4, Ichihashi Gifu-shi, Gifu, 500-8381, JP)
Hirota, Kenji (405 Byukoutosowa, 1-507 Umegaoka, Tenpaku-k, Nagoya-shi Aichi, 468-0004, JP)
Nakano, Yuichi (84-1, Aioi-cho Komatsu-shi, Ishikawa, 923-0946, JP)
Kurimoto, Shinji (204 Raionzumanshonkoubaicho, 2-2 Koubai-cho, Showa-k, Nagoya-shi Aichi, 466-0031, JP)
Application Number:
PCT/JP2003/005413
Publication Date:
April 08, 2004
Filing Date:
April 25, 2003
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NAGOYA INDUSTRIAL SCIENCE RESEARCH INSTITUTE (Nagoyashokokaigisho Bldg, 10-19 Sakae 2-chome, Naka-k, Nagoya-shi Aichi, 460-0008, JP)
Mori, Toshihiko (1-18-4, Ichihashi Gifu-shi, Gifu, 500-8381, JP)
Hirota, Kenji (405 Byukoutosowa, 1-507 Umegaoka, Tenpaku-k, Nagoya-shi Aichi, 468-0004, JP)
Nakano, Yuichi (84-1, Aioi-cho Komatsu-shi, Ishikawa, 923-0946, JP)
Kurimoto, Shinji (204 Raionzumanshonkoubaicho, 2-2 Koubai-cho, Showa-k, Nagoya-shi Aichi, 466-0031, JP)
International Classes:
B21D28/24; B21D28/34; B21D37/20; B23H1/06; B23H9/14; B26F1/28; (IPC1-7): B21D37/20; B21D28/34; B23H9/12
Foreign References:
JPH02131825A
JP2002059315A
JP2001009642A
JP2001170820A
Other References:
TOSHIHIKO MORI ET AL.: 'SiC Fiber o Ponchi ni Mochiita Chobisai Ananuki-ho no Kaihatsu' TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS, SERIES C vol. 65, no. 629, 25 January 1999, pages 369 - 374, XP002977448
TOSHIHIKO MORI ET AL.: 'Chobisai Ananuki ni taisuro Seigyo Keisoku system no Kaihatsu' TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS,SERIES C vol. 65, no. 635, 25 July 1999, pages 305 - 311, XP002977449
Attorney, Agent or Firm:
Watanabe, Kohji (Nippo-Ohe Bldg. 5F, 12-9 Ohe 3-chom, Ichinomiya-shi Aichi, 491-0851, JP)
Download PDF: