Electric heating – Metal heating – By arc
Patent
1995-11-06
1998-06-02
Evans, Geoffrey S.
Electric heating
Metal heating
By arc
B23K 2600
Patent
active
057603650
ABSTRACT:
A laser welding process including: (a) using optical ray tracing to make a model of a laser beam and the geometry of a joint to be welded; (b) adjusting variables in the model to choose variables for use in making a laser weld; and (c) laser welding the joint to be welded using the chosen variables.
REFERENCES:
Belforte, David and Morris Levit, eds., "The Mechanism of Laser Cutting," p. 90; Processing Problems Associated with Laser-Induced Plasma, p. 111; What Lasers Can and Can't Do, p. 117; Absorbers, p. 154; Industrial Laser Handbook, Penn Well Books, 1986.
Minamida, Katsuhiro, Masashi Oikawa, Atsushi Sugihashi and Motoi Kido, "Laser Welding of Metal Honeycomb Panel with Multiple Reflecting Effects of High Power Laser Beams," proceedings of ICALEO (1992), pp. 557-564.
J. L. Murphy, "Multipass Autogenous EBW of 304L and 21-6-9 Stainless Steel," Welding Journal Research Supplement, Nov. 1989, pp. 33-39.
K. Minamida, H. Takafuji, N. Hamada, H. Haga and N. Mizuhashi, "Wedge shape welding with multiple reflecting effect of high power CO.sub.2 laser beam," in The Changing Frontiers of Laser Materials Processing, eds. C. M. Banas and G. L. Whitney, Proceedings of the 5th International Congress on Applications of Lasers and Electro-optics, ICALEO '86, IFS (Publications) Ltd, UK, Nov. 1986. This publication will provide basic background information.
John O. Milewski and Ed Sklar, "Modeling and Validation of Multiple Internal Reflections for Enhanced Laser Welding," JOWOG 22d, Lawrence Livermore National Laboratory, Nov. 8-10, 1994. This conference presentation included discussion of the claimed invention.
Seymore, Kimberly, "Laser Welding Narrows the Gap," Photonics Spectra, May, 1995. This magazine article broadly states some aspects of the claimed invention.
Seymore, Kimberly, "Ultra-Narrow Gap Laser Welding," Commerce Business Daily, Jan., 1995. This newsprint article states some advantages of the invention.
L. H. Shaw and M. J. Cox, "High Aspect Ratio Nd/YAG Laser Welding," Advances in Joining and Cutting Processes, Conf. Proceedings, ed. K. I. Johnson, Harrogate, UK, Oct. 30--Nov. 2, 1989. Publication of conference proceedings disclosed background information for the claimed invention.
Dawes, Christopher, "Welding Sheet Metal Parts," Laser Welding, Abington Publishing, 1992, pp. 128-137. This chapter provides basic background information.
Dawes, Christopher, "Single and Multi-pass Welding with Filler Materials," Laser Welding, Abington Publishing, 1992, pp. 151-161. This chapter provides basic background information.
R. H. Phillips and E. A. Metzbower, "Laser Beam Welding of HY80 and HY100 Steels Using Hot Welding Wire Addition," Welding Research, Supplement to the Welding Journal, sponsored by American Welding Society and the Welding Research Council, Jun., 1992. This publication provides background information.
Industrial Laser Handbook, pp. 90, 111, 117 and 154. This publication provides background information.
J. L. Murphy, "Multipass Autogenous EBW of 304L and 21-6-9 Stainless Steel," Welding Journal, pp. 33-39. This publication provides background information.
J. L. Murphy, T. M. Mustaleski, Jr., and L. C. Watson, "Multipass, Autogenous Electron Beam Welding," Welding Research, Supplement to the Welding Journal, sponsored by American Welding Society and the Welding Research Council, Sep. 1988. This publication provides background information.
S. R. Bolin, "The Effect of F# and Beam Divergence on Quality of Holes Drilled with Pulsed ND:YAG Lasers," Conf.: Proceedings of the Materials Processing Symposium, ICALEO '82 (International Congress of Applications of Lasers and Electro-Optics), sponsored by Laser Institute of America, vol. 31 (1982), pp. 135, 137 and 139. These proceedings provide background information.
C. Y. Yeo, S. C. Tam, S. Jana, and Michael W. S. Lau, "A Technical Review of the Laser Drilling of Aerospace Materials," Journal of Materials Processing Technology, 42 (1994) pp. 15-49. This article provides background information.
Milewski John O.
Sklar Edward
Bennett Gemma Morrison
Evans Geoffrey S.
The Regents of the University of Calif.
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