Advertisement

Journal of Materials Science

, Volume 28, Issue 7, pp 1738–1748 | Cite as

Dual-beam CO2 laser cutting of thick metallic materials

  • P. A. Molian
Papers

Abstract

A dual-beam technique involving two CO2 gas lasers with a power capacity of 1.5 kW each, was used to cut steel and superalloy. A comparison with single-beam CO2 laser cutting showed that dual beams were capable of enhancing the cutting thickness and speed without deteriorating the quality of cut. Heat-conduction models, assuming the laser beams as line sources, were used to estimate the cutting thickness and speed as a function of distance between the two laser beams. Experimental data, coupled with theoretical modelling, have provided a new concept, namely stretching the width of the laser beam in the direction of cutting to cut thicker section solids at moderate speeds.

Keywords

Polymer Experimental Data Laser Beam Theoretical Modelling Thick Section 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    The Editor,Modern Machine Shop J. September (1984) 21.Google Scholar
  2. 2.
    J. N. Kamalu andW. N. Steen, “Laser Materials Processing”, edited by M. Bass (North-Holland, Amsterdam, 1983) Ch. 2.Google Scholar
  3. 3.
    D. Belforte andM. Levitt (eds). “Industrial Laser Annual Hand Book”, SPIE Vol. 1241 (Pennwell, Tulsa, OK, 1990).Google Scholar
  4. 4.
    R. Rothe andG. Sepold, “Important requirements on laser beam cutting systems for cutting thick plates”, Laser Advanced Materials Processing (High Temperature Society of Japan, Osaka, 1987) pp. 251–3.Google Scholar
  5. 5.
    B. A. Ward, J. Fieret andM. J. Terry, in SPIE Vol. 801, “High Power Lasers” (SPIE, 1987) pp. 243–50.Google Scholar
  6. 6.
    J. M. Kamalu,Soc. Photo Instrum. Eng. 621 (1986) 49.Google Scholar
  7. 7.
    P. A. Molian, in “Proceedings of an International Conference on Laser Advanced Materials Processing”, (High Temperature Society of Japan, Osaka, Japan, May 1987), pp. 251–3.Google Scholar
  8. 8.
    I. Decker, J. Rue andW. Atzert,Proc. SPIE September (1983) 81.Google Scholar
  9. 9.
    J. F. Ready, “Effects of High Power Laser Radiation” (Academic Press, New York, 1971).Google Scholar
  10. 10.
    W. W. Duley, “Laser Processing and Analysis of Materials” (Plenum, New York, 1983).CrossRefGoogle Scholar
  11. 11.
    W. W. Duley andJ. N. Gonsalves,Canad. J. Phys. 50 (1972) 215.CrossRefGoogle Scholar
  12. 12.
    V. P. Babenko andB. Tychinskii,Sov. J. Quantum Electron. 2 (1973) 399.CrossRefGoogle Scholar
  13. 13.
    K. A. Bunting andG. Cornfield,Trans. ASME J. Heat Transfer February (1975) 116.Google Scholar
  14. 14.
    D. Schuöcker andW. Abel,Proc. SPIE September (1983) 88.Google Scholar
  15. 15.
    H. S. Carslaw andJ. C. Jaeger, “Conduction of Heat in Solids” (Clarendon Press, Oxford, 1962) pp. 255–72.Google Scholar
  16. 16.
    D. T. Swifthook andA. E. F. Gick,Weld. Res. Suppl. (1973) 492.Google Scholar
  17. 17.
    H. E. Cline andT. R. Anthony,J. Appl. Phys. 48 (1977) 3895.CrossRefGoogle Scholar
  18. 18.
    R. Peretz,Optics Lasers Engng 9 (1988) 23.CrossRefGoogle Scholar
  19. 19.
    Idem, ibid. 10 (1989) 3.CrossRefGoogle Scholar
  20. 20.
    Idem, ibid. 7 (1987) 69.CrossRefGoogle Scholar
  21. 21.
    P. Y. Luciani, C. Chanissoux andJ. N. Calvet, in “Proceedings of the 3rd International Conference on Lasers in Manufacturing” (1986) pp. 117–22.Google Scholar
  22. 22.
    J. Powell, K. Frass andI. A. Menzies, in “Proceedings of International Conference Laser 4: High Power Lasers in Metal Processing” (1988) pp. 310–26.Google Scholar
  23. 23.
    D. Petring, P. Abels andE. Beyer, in SPIE, Vol. 1020, “High Power CO2 Laser Systems and Applications” (SPIE, 1988) pp. 123–31.Google Scholar
  24. 24.
    D. Becker andW. Schultz, in “Proceedings of the International Conference Laser/Optoelectronics in Engineering”, Germany (1985) pp. 345–8.Google Scholar

Copyright information

© Chapman & Hall 1993

Authors and Affiliations

  • P. A. Molian
    • 1
  1. 1.Mechanical Engineering DepartmentIowa State UniversityAmesUSA

Personalised recommendations