Title:
レーザピーニングにより金属に形状および輪郭を成形する方法
Document Type and Number:
Japanese Patent JP4215981
Kind Code:
B2
Abstract:
A system is provided for forming shapes and contours in a metal workpiece, comprising: a laser system that is capable of producing a series of laser pulses, wherein each laser pulse of said series of laser pulses has an energy within a range of 10 J to 100 J per pulse, wherein said each laser pulse has a pulse duration within a range of 10 ns to 20 ns and a rising edge that is less than 1 ns; a layer of material that absorbs light for fixedly attaching to a metal workpiece and comprising polyvinyl acetate of polyvinyl chloride plastic; means for flowing a thin layer of water over said layer of material; and means for imaging the near field of said each laser pulse to a spot size on said layer of material so that said series of laser pulses will generate compressive stress on the surface of said metal workpiece until a desired shape is formed therein without inducing unwanted tensile stress at the surface of said metal workpiece.
Inventors:
Lloyd, Hackel
Fritz, Harris
Fritz, Harris
Application Number:
JP2001510619A
Publication Date:
January 28, 2009
Filing Date:
June 26, 2000
Export Citation:
Assignee:
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
International Classes:
B23K26/00; B23K26/352; B21D11/20; B21D26/00; B21D26/06; B23K26/18; B23K26/356; C21D1/00; C21D10/00
Domestic Patent References:
| JP3052723A | ||||
| JP63188426A | ||||
| JP4111928A | ||||
| JP1313113A | ||||
| JP8326502A | ||||
| JP5131281A | ||||
| JP11254156A |
Foreign References:
| WO1997041267A1 |
Attorney, Agent or Firm:
Kenji Yoshitake
Hiroyuki Nagai
Junpei Okada
Satoshi Nazuka
Hideyuki Mori
Hirohito Katsunuma
Hiroyuki Nagai
Junpei Okada
Satoshi Nazuka
Hideyuki Mori
Hirohito Katsunuma