Experimental Investigation on Effect to the Specific Strength of FDM Fabrication Parameters Using Taguchi Method

Authors : Sedat İRİÇ

Pages : 984-990

Doi:10.16984/saufenbilder.771389

View : 43 | Download : 9

Publication Date : 2020-10-01

Article Type : Research Paper

Abstract :The Fused Deposition Modeling insert ignore into journalissuearticles values(FDM); fabrication is commonly used printing technique, the reasons behind this are low consumable cost, simplicity of workflow and more reliable. The quality of the printed parts depends on various process variables such as part orientation, layer thickness, hotend and bed temperature, fabricating speed, infill pattern and infill density, number of top-bottom solid layers, number of shells etc. Literature suggests that infill density, number of shells and number of top-bottom solid layers are variables that changing the tensile strength under tension of 3D fabricated parts and also have effect on weight of the parts. This study focuses on effect of infill density insert ignore into journalissuearticles values(ID);, number of shells insert ignore into journalissuearticles values(NS); and top-bottom solid layers insert ignore into journalissuearticles values(TBSL); on specific strength insert ignore into journalissuearticles values(strength/weight ratio);. Taguchi L18 Orthogonal Array insert ignore into journalissuearticles values(OA); design is used to perform the experiments. 18 runs with 3 repeated specimens were printed according to the ASTM D638 Type I standard using different printing variables. According to the results, parameters increase of ID, NS and TBSL were seen to effect significant improvement in the specific strength increase. However, between 40-60% ID has negative effect to specific strength while NS and TBSL increase.
Keywords : Fused Deposition Modelling, Specific Strength, 3D printing, Taguchi Method