Analysis of stereolytograpghy process using a finite elements approach

Marlon Wesley Machado Cunico¹; Miriam Machado Cunico²; Jonas de Carvalho¹

¹ University of São Paulo; ² Concep3d Pesquisas Científicas

doi:10.20906/CPS/COB-2015-0015

Resumo

In spite of the popularization of additive manufacturing in the past years, stereolithography process are still complex,hard to optimize, and in several cases imply on dimensional distortion and warpening because of material shrinkage during the curing phase. For that reason, the current work purpose is the analyses of stereolithography process using a finite element method. In this work, the finite element method is introduced and the interaction between poylmerization straight lines and between layers were analysed. In this case, the shrinkage ratio and conversion degree were studied as a function of laser intensity, raster velocity, material formulation. By the end, we indicated the suitable process parameter in order to avoid dimensional distortion and warpening.

Palavras-chave: Additive manufacturing; Stereolithography; Finite elements method