Title:
SURFACE MODIFICATION
Document Type and Number:
WIPO Patent Application WO2002094497
Kind Code:
A3
Abstract:
A method of operating on a workpiece comprises causing relative movement between the workpiece and a power beam in a traverse direction so as to expose a series of locations on the workpiece to the power beam. At each location the power beam is caused to move relative to the workpiece in a predetermined manner having a component transverse to the traverse direction, and workpiece material is melted and displaced by the power beam so as to form a cavity or hole.
Inventors:
DANCE BRUCE GUY IRVINE
Application Number:
PCT/GB2002/002237
Publication Date:
January 16, 2003
Filing Date:
May 14, 2002
Export Citation:
Assignee:
WELDING INST (GB)
International Classes:
B23K15/00; B23K15/08; B23K26/00; B23K26/08; B23K26/38; (IPC1-7): B23K15/08; B23K26/08; B23K26/38
Foreign References:
| EP0577833A1 | 1994-01-12 | |||
| US3632398A | 1972-01-04 | |||
| US5593606A | 1997-01-14 | |||
| EP0626228A1 | 1994-11-30 | |||
| US4806731A | 1989-02-21 | |||
| GB2069906A | 1981-09-03 | |||
| US5609779A | 1997-03-11 | |||
| US5225650A | 1993-07-06 | |||
| US3246079A | 1966-04-12 | |||
| US5324912A | 1994-06-28 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 008, no. 100 (M - 295) 11 May 1984 (1984-05-11)
PATENT ABSTRACTS OF JAPAN vol. 012, no. 416 (M - 759) 4 November 1988 (1988-11-04)
PATENT ABSTRACTS OF JAPAN vol. 012, no. 416 (M - 759) 4 November 1988 (1988-11-04)
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