NUMERICAL MODELLING OF LASER RAPID PROTOTYPING BY FUSION WIRE DEPOSIT

作者：Arbaoui L^*; Masse J E; Barrallier L; Mocellin K

来源：International Journal of Material Forming, 2010, 3: 1095-1098.

DOI：10.1007/s12289-010-0962-2

• 3D finite element
• lagrangian formulation
• absorptivity
• plasma
• phase change
• surface tension

A finite element model has been developed to simulate an innovative laser rapid prototyping process. Several numerical developments have been implemented in order to stimulate the main steps of the rapid prototyping process: injection, heating, phase change and deposit. The numerical model also takes into account different phenomena: surface tension in the liquid state, asborptivity and plasma effects during material-laser interaction. The three-dimensional model is based on the lagrangian approach used in the Forge (R) finite element software. The thermal model coupled with material-laser model is compared and gives good agreements. Simulations of the rapid prototyping are compared with experimental results.

• 出版日期2010-4