This paper describes the investigation of sparse-build tooling by Fused Deposition Modeling (FDM®) aimed at rapid tooling with reduction in the amount of material. Sparse-build test coupons having ULTEM as the material and varying air gap (sparse spacing), wall thickness, and cap thickness were fabricated using the sparse and sparse-double dense build styles of the Stratasys Fortus machine. The strengths and moduli of these coupons were measured in compression and flexure tests. The strength/mass ratio and modulus/mass ratio were compared among the various coupons, as well as with solid coupons, to investigate the effects of the two build styles and the three sparse-build parameters. In addition, the effects of build direction and raster orientation were also studied
O. Iyibilgin et al., "Investigation of Sparse-Build Rapid Tooling by Fused Deposition Modeling," Proceedings of the 25th Annual International Solid Freeform Fabrication Symposium (2014, Austin, TX), pp. 542-556, University of Texas at Austin, Aug 2014.
25th Annual International Solid FreeForm Fabrication Symposium (2014: Aug. 4-6, Austin, TX)
Mechanical and Aerospace Engineering
Article - Conference proceedings
06 Aug 2014