论文信息 - Finite Element Analysis of Micro Scale Laser Bending of a Steel Sheet Metal Subjected to Short Pulse Shock Wave

Finite Element Analysis of Micro Scale Laser Bending of a Steel Sheet Metal Subjected to Short Pulse Shock Wave

Abstract Short pulse laser micro-bending is intended as a non-thermal forming process utilizing the shock wave induced by laser irradiation to bend of micro scale components. In this paper, the bending behavior of a micro scale AISI 304 sheet was investigated during short pulse laser bending by the finite element method. A dynamic explicit analysis relied on incident wave for loading process was employed to obtain the effect of laser power and laser spot position on the stress and strain distribution and maximum bending displacement. Results show effect of laser power on bending process is more considerable in comparison with laser spot position.

[1] J. Ocaña,et al. High level compressive residual stresses produced in aluminum alloys by laser shock processing , 2005 .

[2] Christof Sommitsch,et al. 3D Simulation and Process Optimization of Laser Assisted Milling of Ti6Al4V , 2013 .

[3] J. J. García-Ballesteros,et al. Short pulse laser microforming of thin metal sheets for MEMS manufacturing , 2007 .

[4] Frank Vollertsen,et al. Classification of laser shock forming within the field of high speed forming processes , 2011 .

[5] Lin Li,et al. Finite element analysis of laser tube bending process , 2003 .

[6] Z. Ji,et al. Numerical simulation and experimentation of micro scale laser bulge forming , 2010 .

[7] Hong Shen,et al. A finite element model using multi-layered shell element in laser forming , 2012 .

[8] C. Hartmann,et al. Laser applications in microtechnology , 2005 .

[9] Effect of confining overlay in micro scale laser bulge forming , 2013 .

[10] Lin Li,et al. An analytical model for laser tube bending , 2003 .

[11] Lin Li,et al. Finite element simulation of laser tube bending: Effect of scanning schemes on bending angle, distortions and stress distribution , 2007 .

[12] Yanjin Guan,et al. Numerical investigation on the laser bending of stainless steel foil with pre-stresses , 2009 .

[13] X. Ling,et al. Optimization of the fatigue resistance of AISI304 stainless steel by ultrasonic impact treatment , 2014 .