... perceive the surface finish of AM products. Design/methodology/approach A pen, as an example of a consumer product, was designed, built and finished using a range of materials, AM technologies and post-processing methods. Forty participants were recruited for the study: 50% male and 50% female...

...Wendy Triadji Nugroho; Yu Dong; Alokesh Pramanik Purpose This paper aims to investigate the dimensional accuracy consisting of thickness, grip section width, full length, circularity, cylindricity and surface finish of printed polyurethane dog-bone samples based on American Society for Testing...

... the contact between the molten polymer and the surrounding powder. The authors set the powder bed temperature closer to the melting temperature than that for a typical LS. Alternatively, the authors use a low-power laser to irradiate the powder bed surrounding the parts being built. The surface finish...

... intensity in the melt pool, which may lead to a comparatively poor surface finish. In terms of scanning speed, a relatively low speed is generally preferred because the prolonged time allows the melt pool to redistribute and achieve a flat surface, but the resulting low productivity may be another...

... of this paper is to present a parametric study and optimisation of fundamental parameters, including scan power, speed, inclined angle and layer thickness on surface roughness during selective laser melting of Hastelloy X. Design/methodology/approach Parametric significance on surface finish was analysed...

... dimension; and GA = genetic algorithm. S/N ratio Regression analysis Taguchi 3D model Taguchi S/N ratio ANOM regression analysis Surface finish Laser power Layer thickness Temperature Optimal Co₂ ANOM © Emerald Publishing Limited 2018 Emerald Publishing...

... machine generated grids with optimal microstructure, the apertures fell within the specified tolerances and tolerances of slightly less than 10 µm can be guaranteed for the hole array positioning. The grids’ upper surfaces presented good-quality surface finish, and the lower surface quality was acceptable...

...) and sanding. In Kulkarni and Dutta (2000) and Boschetto et al. (2016) , the improvement in surface finish was achieved by using computer numerical control (CNC) milling machines after the part had been printed by layer deposition. However, when complex surfaces with small dimensions were...

... the layer-based point scanning limitations to increase fabrication speed, obtain better surface finish, achieve material flexibility and reduce equipment costs. Design/methodology/approach The freeform additive manufacturing approach conceptually views a 3D article as an assembly of freeform elements...

... The results indicate that surface roughness is reduced immensely after cold vapour treatment with minimum variation in geometric accuracy of parts. Parts build vertically over its side face (X orientation) provides the overall better surface finish and geometric accuracy. Originality/value The present...