Four laser scanning schemes for tube bending, including point-source circumferential scanning, pulsed line-source axial procession, and line-source axial scanning without and with water cooling are investigated in numerical simulation. The coupled thermomechanical model established using the finite element method is validated and applied to predict the bending deformation and help better understand bending mechanisms under different schemes. The influence of important parameters such as beam coverage, scanning velocity and cooling offset on the deformation is investigated in detail. Parametric studies are carried out to determine proper processing windows at which the largest bending can be obtained. The deformation characteristics, including the wall thickness variation and the cross-section distortion produced by different scanning schemes are analyzed, along with the processing efficiency.
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February 2006
Technical Papers
Effects of Scanning Schemes on Laser Tube Bending
Jie Zhang,
Jie Zhang
Department of Mechanical Engineering,
Columbia University
, New York, NY 10027
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Peng Cheng,
Peng Cheng
Department of Mechanical Engineering,
Columbia University
, New York, NY 10027
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Wenwu Zhang,
Wenwu Zhang
Global Research Center,
General Electric Company
, Niskayuna, NY 12309
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Michael Graham,
Michael Graham
Global Research Center,
General Electric Company
, Niskayuna, NY 12309
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Jerry Jones,
Jerry Jones
Native American Technologies Company
, Golden, CO 80401
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Marshall Jones,
Marshall Jones
Global Research Center,
General Electric Company
, Niskayuna, NY 12309
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Y. Lawrence Yao
Y. Lawrence Yao
Department of Mechanical Engineering,
Columbia University
, New York, NY 10027
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Jie Zhang
Department of Mechanical Engineering,
Columbia University
, New York, NY 10027
Peng Cheng
Department of Mechanical Engineering,
Columbia University
, New York, NY 10027
Wenwu Zhang
Global Research Center,
General Electric Company
, Niskayuna, NY 12309
Michael Graham
Global Research Center,
General Electric Company
, Niskayuna, NY 12309
Jerry Jones
Native American Technologies Company
, Golden, CO 80401
Marshall Jones
Global Research Center,
General Electric Company
, Niskayuna, NY 12309
Y. Lawrence Yao
Department of Mechanical Engineering,
Columbia University
, New York, NY 10027J. Manuf. Sci. Eng. Feb 2006, 128(1): 20-33 (14 pages)
Published Online: June 11, 2005
Article history
Received:
August 11, 2004
Revised:
June 11, 2005
Citation
Zhang, J., Cheng, P., Zhang, W., Graham, M., Jones, J., Jones, M., and Yao, Y. L. (June 11, 2005). "Effects of Scanning Schemes on Laser Tube Bending." ASME. J. Manuf. Sci. Eng. February 2006; 128(1): 20–33. https://doi.org/10.1115/1.2113047
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