Open Access3D printing of spare parts: experimental study using non-standardized tests of the maximum supported torque
Author(s) -
A Cerro,
Esther Molero,
Ramos González,
Pablo E. Romero
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1193/1/012032
Subject(s) - spare part , taguchi methods , infill , torque , orthogonal array , mechanical engineering , 3d printing , engineering , materials science , structural engineering , engineering drawing , composite material , physics , thermodynamics
Industry 4.0 is scanning the spare parts of your machines and printing them directly when they are needed. This reduces storage space and shortens downtimes associated with corrective maintenance. In this work, we study which printing factors are the most important in spare parts that are going to be subjected to torque and have been manufactured by fused deposition modelling. For this purpose, an L16 design of experiments with three factors and two levels has been carried out. The factors studied were: number of shells, infill pattern and infill density. Following this design of experiments, cylindrical specimens with hexagonal heads were manufactured. These specimens were subjected to a non-standardized torsion test. From the experimental results, using the Taguchi method and the analysis of variance, it was found that the factors that most influence the maximum torque reached by the parts are the number of shells and the infill density. As a practical application of the work, the spare part for a water heater selector has been manufactured, using 5 shells and a density of 80 %.