Experimental investigation and numerical simulation of the influence of the strain rate in laser forming are presented. To isolate and effectively study the strain rate effects, which are temperature dependent, a “constant peak temperature” method is developed with the aid of numerical modeling and solution. Under the condition of the constant peak temperature, the effects of strain rate on forming efficiency, residual stress and hardness of the formed parts are studied both experimentally and numerically. In the numerical model, the temperature dependence and strain-rate dependence of the flow stress and other material properties are considered. The simulation results are consistent with the experimental observations. The micro-structural changes of the formed parts are also presented.
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ICALEO '99: Proceedings of the Laser Microfabrication Conference
November 15–17, 1999
San Diego, California, USA
ISBN:
0-912035-60-9
PROCEEDINGS PAPER
Effects of strain rate in laser forming Available to Purchase
Wenchuan Li;
Wenchuan Li
Department of Mechanical Engineering, Columbia University
, New York, New York 10027, USA
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Y. Lawrence Yao
Y. Lawrence Yao
Department of Mechanical Engineering, Columbia University
, New York, New York 10027, USA
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Published Online:
November 01 1999
Citation
Wenchuan Li, Y. Lawrence Yao; November 15–17, 1999. "Effects of strain rate in laser forming." Proceedings of the ICALEO '99: Proceedings of the Laser Microfabrication Conference. ICALEO '99: Proceedings of the Laser Materials Processing Conference. San Diego, California, USA. (pp. pp. F107-F116). ASME. https://doi.org/10.2351/1.5059261
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