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 (JP)
HIROTA KENJI (JP)
NAKANO YUICHI (JP)
KURIMOTO SHINJI (JP)
HIROTA KENJI (JP)
NAKANO YUICHI (JP)
KURIMOTO SHINJI (JP)
Application Number:
PCT/JP2003/005413
Publication Date:
April 08, 2004
Filing Date:
April 25, 2003
Export Citation:
Assignee:
INST NAGOYA IND SCIENCE RES (JP)
MORI TOSHIHIKO (JP)
HIROTA KENJI (JP)
NAKANO YUICHI (JP)
KURIMOTO SHINJI (JP)
MORI TOSHIHIKO (JP)
HIROTA KENJI (JP)
NAKANO YUICHI (JP)
KURIMOTO SHINJI (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 | 1990-05-21 | |||
| JP2002059315A | 2002-02-26 | |||
| JP2001009642A | 2001-01-16 | |||
| JP2001170820A | 2001-06-26 |
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 (1999-01-25), 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 (1999-07-25), pages 305 - 311, XP002977449
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 (1999-07-25), pages 305 - 311, XP002977449
Attorney, Agent or Firm:
Watanabe, Kohji (12-9 Ohe 3-chom, Ichinomiya-shi Aichi, JP)
Download PDF: