Experimental Investigation and Taguchi Optimization of FDM process parameters for the Enhancement of Tensile properties of Bi-Layered printed PLA-ABS

Abstract Additive manufacturing (AM) technology has gained significant popularity, among which Fused Deposition Modeling (FDM) emerged as the predominant technique for 3D printing. FDM offers unique ability to achieve desired and tailored engineering properties required specific applications. This experimental study investigates influence of varying process parameters on mechanical highlights optimal set better tensile strength a bi-layered composite PLA-ABS (polylactic acid acrylonitrile butadiene styrene). Also, it most-to-least influential printing parameters. Four were played out i.e., Infill density (50%, 75%, 100%), number layers (20,25 30), speed (20mm/sec, 40mm/sec, 60mm/sec), bed temperature (90◦C, 95◦C, 100◦C), while keeping other constant. Taguchi optimization was used experiments designed according orthogonal array L9 (3 4). After printing, samples evaluated results analyzed. It is found that infill most parameter least influential. 30 per part, 20mm/sec, 100◦C are strength. Alongside, percent elongation, time, strength-to-weight ratio also analyzed correlated.