Mechanical Displacement for 3D Printers’ Parts Using FEM as Inverse Engineering Method in Honduras

Abstract

Plastics industry is growing day by day; the new techniques generated by the fourth industrial revolution, such as additive manufacturing (AM) or better known as 3D printing, make the design and production of plastic products available to all. The aim of this research aims to explore the application of reverse engineering in improving the mechanical displacement in AM. The method used in this paper was the finite element analysis (FEM) applying it to different 3D printing parameters with a grid infill. Then the multiple line regression (MLR) was implemented to determine parameters relation. Finally, the simplex method to improve the parameters to decrease the mechanical displacement in AM. Reverse engineering process for parts that use 0.2 as shell wall and 25% of grid infill can have acceptable mechanical performance to be used in different applications.

Magnetically activated 3D printable polylactic acid/polycaprolactone/magnetite composites for magnetic induction heating generation

“…It can be seen that while at low NPs concentrations the filaments show a regular morphology and dense structure, the increase in the magnetic component fosters the deterioration of the morphology. As NPs concentration increases, the filament becomes rougher with a consequent enhancement of the porosity, i.e., porous in the micrometric range [39,[52][53][54]. Interestingly, it must be noted that the increased porosity does not affect the macroscopic aspect of the extruded filament, displaying, all the series of composites, a smooth surface (see Fig.…”

Design of an Error-Proof Device (Poka Yoke) in the Cup Molding Process in a Clothing Manufacturing Company, Honduras.

“…Para el proceso de enfriamiento existen los cooling cones los cuales absorben el calor mientras mantienen las formas de las copas. La industria del plástico crece día a día; las nuevas técnicas generadas por la cuarta revolución industrial, como la fabricación aditiva (FA) o más conocida como impresión 3D, ponen al alcance de todos el diseño y producción de productos plásticos [7]. Aprovechando este recurso de la impresión en 3D presente para la planta se procedió a la selección de un poka yoke que pueda ser impreso de manera interna para aplicarlo en el área de moldeo.…”

Cinematic Design and Force Analysis of a SCARA Robot with Pneumatic Actuators

“…Previous research has shown that the tensile mechanical properties of PLA are greater than ABS if printed at 0° or 90° degrees which is the case [14]. Also an infill of more than 70% was used to avoid mechanical stress [15] Fig. 6 Work area of pneumatic SCARA 4 DOF.…”

“…180 = 𝛼 + 𝜃 2 ; 𝛼 = 180 − 𝜃 2 (10) For the resolution of the obtuse triangle of blue and yellow color was analyzed, in which the law of cosines was applied (11) and clearing for cosine (12) in which the hypotenuse R in the diagram and in the formula is already known by applying the Pythagorean theorem (13), in which substituting in the equation is expressed as follows according to the values of links and the variable coordinate system (14). We substitute the known value of the equation ( 14) in the equation and applying the trigonometric identity (15) we can leave the positive equation (16).…”