Study on the residual stress state of TA2 titanium sheet metal formed perpendicularly with single pulsed laser

A. X. Feng; Y. K. Zhang; D. W. Zuo; D. J. Kong; J. Z. Lu; X. D. Ren; J. Z. Zhou; C. P. Tang; H. K. Xie

doi:10.1117/12.667190

23 December 2005 Study on the residual stress state of TA2 titanium sheet metal formed perpendicularly with single pulsed laser

A. X. Feng, Y. K. Zhang, D. W. Zuo, D. J. Kong, J. Z. Lu, X. D. Ren, J. Z. Zhou, C. P. Tang, H. K. Xie

Author Affiliations +

Proceedings Volume 6028, ICO20: Lasers and Laser Technologies; 60281G (2005) https://doi.org/10.1117/12.667190
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

Abstract

Laser shock forming(LSF) is a new forming technique of sheet metal by applying a compressive shock wave on the surface of metal sheet. The plastic deformation of TA2 titanium metal sheet is performed under single laser shocking perpendicularly with Nd:Glass laser developed in Jiangsu University. The residual stress state in the horizontal and diagonal direction of the foursquare specimen, as well as the residual stress state in the radial direction of the circular specimen, was investigated with X-ray stress analyzer. The residual stress state of laser shock forming specimen is unique to some extent by contrast with traditional punch forming, which is influenced by the specimen shape and the deformation rate. The experiment results show that residual stresses value of TA2 Titanium Sheet Metal in laser shock area are up to 100MPa.Square specimen is more difficult to be formed than circular specimen, and the press value of cave is the larger than the one of convex.

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A. X. Feng, Y. K. Zhang, D. W. Zuo, D. J. Kong, J. Z. Lu, X. D. Ren, J. Z. Zhou, C. P. Tang, and H. K. Xie "Study on the residual stress state of TA2 titanium sheet metal formed perpendicularly with single pulsed laser", Proc. SPIE 6028, ICO20: Lasers and Laser Technologies, 60281G (23 December 2005); https://doi.org/10.1117/12.667190

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