Enhancement of Fatigue Life of Polylactic Acid Components through Post-Printing Heat Treatment
Author:
Jimenez-Martinez Moises1ORCID, Varela-Soriano Julio1, Carrera-Espinoza Rafael2ORCID, Torres-Cedillo Sergio G.3, Cortés-Pérez Jacinto3
Affiliation:
1. Tecnologico de Monterrey, School of Engineering and Science, Via Atlixcayotl 5718, Mexico 2. Departamento de Ingeniería Industrial y Mecánica, Universidad de las Américas Puebla, San Andrés Cholula 72810, Mexico 3. Centro Tecnológico FES Aragón, Universidad Nacional Autónoma de México, Mexico City 57171, Mexico
Abstract
To reduce the carbon footprint of manufacturing processes, it is necessary to reduce the number of stages in the development process. To this end, integrating additive manufacturing processes with three-dimensional (3D) printing makes it possible to eliminate the need to use tooling for component manufacturing. Furthermore, using 3D printing allows the generation of complex models to optimize different components, reducing the development time and realizing lightweight structures that can be applied in different industries, such as the mobility industry. Printing process parameters have been studied to improve the mechanical properties of printed items. In this regard, although the failure of most structural components occurs under dynamic load, the majority of the evaluations are quasistatic. This work highlights an improvement in fatigue strength under dynamic loads in 3D-printed components through heat treatment. The fatigue resistance was improved regarding the number of cycles and the dispersion of results. This allows 3D-printed polylactic acid components to be structurally used, and increasing their reliability allows their evolution from a prototype to a functional component.
Subject
Industrial and Manufacturing Engineering,Mechanical Engineering,Engineering (miscellaneous)
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