Back to Search
Start Over
A study on super-speed forming of metal sheet by laser shock waves
- Source :
-
Journal of Materials Processing Technology . Oct2002, Vol. 129 Issue 1-3, p241. 4p. - Publication Year :
- 2002
-
Abstract
- In this paper, the authors explore a dynamic super-speed forming method driven by laser shock waves. The initial exploration of laser shock forming (LSF) is done through bulge testing with specimens of 430 sheet metal, using a neodymium–glass laser of pulse energy 10–30 J and duration 20 ns (FWHM). The investigation revealed that the plastic deformation during the LSF is characterized as ultra-high strain rate, and it is indicated that the plastic deformation increases non-linearly with the increase of the energy density of the laser. By investigating the hardness and residual stress of the surfaces, it is conclude that LSF is a combination technique of laser shock strengthening and metal forming for introducing strain hardening and a compressive residual stress on the surface of the workpiece. This technique can achieve forming with or without a mold. [Copyright &y& Elsevier]
- Subjects :
- *SHEET metal work
*SHOCK waves
*RESIDUAL stresses
Subjects
Details
- Language :
- English
- ISSN :
- 09240136
- Volume :
- 129
- Issue :
- 1-3
- Database :
- Academic Search Index
- Journal :
- Journal of Materials Processing Technology
- Publication Type :
- Academic Journal
- Accession number :
- 7884590
- Full Text :
- https://doi.org/10.1016/S0924-0136(02)00609-X