Affiliation:
1. Northwestern Polytechnical University
2. Nanjing University of Aeronautics and Astronautics
3. Tianjin Polytechnic University
4. Changzhou University
5. Jiangsu University
6. Henan University of Science and Technology
7. Jiangsu University
Abstract
Laser shock forming of metal sheet usually effects on the surface of work-piece in
normal direction by laser beam, and produces shock wave force which is vertical to the surface of
work-piece. But it is difficult to shock in normal direction during processing on the surface of
forming camber, so it needs to study on oblique angle laser shock processing. LD31 forging
aluminum alloy sheet is shocked by Nd-glass laser in the paper, model and mode of oblique angle
laser shock processing is found, and transmitting characteristics of plasma stress wave is
discussed. The experiment results show that the angle between input beam and sample normal is
bigger, component of forces that parallel with sample surface is bigger, the deformation
eccentricity is bigger and bigger. When the angle is bigger, the area of laser beam spot becomes
bigger too, energy density becomes smaller, deformation becomes shallower.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
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