Laser forming of steel is a hot forming process with high heating and cooling rate, during which strain hardening, dynamic recrystallization, and phase transformation take place. Numerical models considering strain rate and temperature effects only usually give unsatisfactory results when applied to multiscan laser forming operations. This is mainly due to the inadequate constitutive models employed to describe the hot flow behavior. In this work, this limitation is overcome by considering the effects of microstructure change on the flow stress in laser forming processes of low carbon steel. The incorporation of such flow stress models with thermal mechanical FEM simulation increases numerical model accuracy in predicting geometry change and mechanical properties.
Skip Nav Destination
Article navigation
Technical Papers
Microstructure Integrated Modeling of Multiscan Laser Forming
Jin Cheng,
Jin Cheng
Department of Mechanical Engineering, Columbia University, New York, NY 10027
Search for other works by this author on:
Y. Lawrence Yao
Y. Lawrence Yao
Department of Mechanical Engineering, Columbia University, New York, NY 10027
Search for other works by this author on:
Jin Cheng
Department of Mechanical Engineering, Columbia University, New York, NY 10027
Y. Lawrence Yao
Department of Mechanical Engineering, Columbia University, New York, NY 10027
Contributed by the Manufacturing Engineering Division for publication in the JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING. Manuscript received March 2001; Revised September 2001. Associate Editor: K. Stelson.
J. Manuf. Sci. Eng. May 2002, 124(2): 379-388 (10 pages)
Published Online: April 29, 2002
Article history
Received:
March 1, 2001
Revised:
September 1, 2001
Online:
April 29, 2002
Citation
Cheng , J., and Yao, Y. L. (April 29, 2002). "Microstructure Integrated Modeling of Multiscan Laser Forming ." ASME. J. Manuf. Sci. Eng. May 2002; 124(2): 379–388. https://doi.org/10.1115/1.1459088
Download citation file:
Get Email Alerts
Related Articles
Investigation of Effect of Phase Transformations on Mechanical Behavior of AISI 1010 Steel in Laser Forming
J. Manuf. Sci. Eng (February,2007)
Thermo-Mechanical Modeling of Hot Forging Process
J. Eng. Mater. Technol (October,2004)
Precision Laser Deburring
J. Manuf. Sci. Eng (November,2001)
An Analytical Model for the Prediction of Minimum Chip Thickness in Micromachining
J. Manuf. Sci. Eng (May,2006)
Related Proceedings Papers
Related Chapters
Introduction and Definitions
Handbook on Stiffness & Damping in Mechanical Design
Materials
Power Boilers: A Guide to the Section I of the ASME Boiler and Pressure Vessel Code, Second Edition
Example Open-Book Questions
Quick Guide to the API 570 - Certified Pipework Inspector Syllabus