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Patent Searching and Data


Title:
ULTRASONIC IMPACT PROCESSING MACHINE, AND ULTRASONIC IMPACT PROCESSING DEVICE
Document Type and Number:
WIPO Patent Application WO/2004/046399
Kind Code:
A1
Abstract:
An ultrasonic impact processing machine for obtaining a surface layer having a nanocrystal structure and having various characteristics, or for obtaining such surface layer efficiently, and for obtaining high fatigue characteristics; and an ultrasonic impact processing device. The ultrasonic impact processing machine comprises a transducer for generating ultrasonic waves, a waveguide attached forwardly of the transducer for forwardly guiding the ultrasonic waves, and a head attached to the front end of the waveguide and provided with a pin adapted to be vibrated by ultrasonic waves, with a pin rotation means for rotating the pin, and with a holder for holding the pin. Preferably, a plurality of transducers are connected to the waveguide, or the pin of the head has a regulated hardness, material and shape. Further, the ultrasonic impact processing device is made by adding a means for rotation and movement to the ultrasonic impact processing machine or by adding a metal powder supply means, a heating means and a shielding gas supply means thereto.

Inventors:
TOMINAGA TOMONORI (JP)
ISHIKAWA TADASHI (JP)
TAKASHIMA KAZUKI (JP)
HIGO YAKICHI (JP)
Application Number:
PCT/JP2003/014752
Publication Date:
June 03, 2004
Filing Date:
November 19, 2003
Export Citation:
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Assignee:
NIPPON STEEL CORP (JP)
TOMINAGA TOMONORI (JP)
ISHIKAWA TADASHI (JP)
TAKASHIMA KAZUKI (JP)
HIGO YAKICHI (JP)
International Classes:
C21D1/04; B06B1/02; B06B3/04; B23P9/04; C21D7/04; C23C24/04; C23C24/06; C23C24/08; (IPC1-7): C21D7/04; C21D1/04
Foreign References:
US20020014100A12002-02-07
JPS5726119A1982-02-12
Attorney, Agent or Firm:
Aoki, Atsushi (ISHIDA & ASSOCIATES Toranomon 37 Mori Bldg., 5-1, Toranomon 3-chom, Minato-ku Tokyo, JP)
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