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Proceedings Paper

Theoretical analysis and experimental investigation on V-shape deformation by laser peening
Author(s): Xingquan Zhang; Yongkang Zhang; Jianzhong Zhou; Yongyu Gu; Jufang Cheng
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Paper Abstract

Laser shot peening forming is a novel technique, which employes intense laser to induce residual stress distributed unevenly along the thickness to shape the metal plate. Theoretical analysis and experimental investigation reveal that laser peening forming is a mechanical, not a thermal process. The specimen was peened by laser along the centerline of the specimen, the shape of deformation of specimen is a bulge V-shape, that the plastic deformation centralizes on the narrow laser peening zone, and that other parts of specimen remain at original state but turn around the axis. The stress on both surfaces of deformed plate is compressive residual stress, which indicates that laser peening forming combines plastic deformation with surface improving treatment, and that the workpiece formed by laser peening has longer fatigue life.

Paper Details

Date Published: 14 November 2007
PDF: 7 pages
Proc. SPIE 6722, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 672221 (14 November 2007); doi: 10.1117/12.783112
Show Author Affiliations
Xingquan Zhang, Anhui Univ. of Technology (China)
Jiangsu Univ. (China)
Yongkang Zhang, Jiangsu Univ. (China)
Jianzhong Zhou, Jiangsu Univ. (China)
Yongyu Gu, Jiangsu Univ. (China)
Jufang Cheng, Jiangsu Univ. (China)


Published in SPIE Proceedings Vol. 6722:
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies

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