There has been a considerable amount of work carried out on two-dimensional laser forming. In order to advance the process further for industrial applications, however, it is necessary to consider more general cases and especially their process planning aspect. This paper presents an optimal approach to laser scanning paths and heating condition determination for laser forming of doubly curved shapes. Important features of the approach include the strain field calculation based on principal curvature formulation and minimal strain optimization, and scanning paths and heating condition (laser power and scanning velocity) determination by combining analytical and practical constraints. The overall methodology is presented first, followed by more detailed descriptions of each step of the approach. Two distinctive types of doubly curved shape, pillow and saddle shapes are focused on and the effectiveness of the proposed approach is validated by forming experiments.
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February 2004
Technical Papers
Optimal Process Planning for Laser Forming of Doubly Curved Shapes
Chao Liu,
Chao Liu
Department of Mechanical Engineering, Columbia University, New York, NY 10027
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Y. Lawrence Yao,
Y. Lawrence Yao
Department of Mechanical Engineering, Columbia University, New York, NY 10027
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Vijay Srinivasan
Vijay Srinivasan
IBM Corporation, White Plains, NY 10604
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Chao Liu
Department of Mechanical Engineering, Columbia University, New York, NY 10027
Y. Lawrence Yao
Department of Mechanical Engineering, Columbia University, New York, NY 10027
Vijay Srinivasan
IBM Corporation, White Plains, NY 10604
Contributed by the Manufacturing Engineering Division for publication in the JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING. Manuscript received May 2003. Associate Editor: A. J. Shih.
J. Manuf. Sci. Eng. Feb 2004, 126(1): 1-9 (9 pages)
Published Online: March 18, 2004
Article history
Received:
May 1, 2003
Online:
March 18, 2004
Citation
Liu , C., Yao, Y. L., and Srinivasan, V. (March 18, 2004). "Optimal Process Planning for Laser Forming of Doubly Curved Shapes ." ASME. J. Manuf. Sci. Eng. February 2004; 126(1): 1–9. https://doi.org/10.1115/1.1643077
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