Abstract
Managing the quality of functional parts is a key challenge in wire arc additive manufacturing. In case of additive production of aluminum parts, porosity is one of the main limitations of this process. This paper provides an indicator of porosity through the simulation of melt pool volume in aluminum wire arc additive manufacturing. First, a review of porosity formation during WAAM process is presented. This review leads to the proposal of this article: monitoring the porosity inside produced part can be achieved through the melt pool volume monitoring. An adapted Finite Element model is then proposed to determine the evolution of the melt pool volume throughout the manufacturing process of the part. This model is validated by experimental temperature measurement. Then, in order to study the link between the porosity and the melt pool volume, two test parts are chosen to access to two different pore distributions. These two parts are simulated and produced. The porosity rates of produced parts are then measured by X-ray tomography and compared to the simulated melt pool volumes. The analysis of the results highlights the interest of the melt pool volume as a predictive indicator of the porosity rate.
Subject
Industrial and Manufacturing Engineering,Mechanical Engineering,General Materials Science
Reference33 articles.
1. Designing for Additive Manufacturing
2. Wohlers T., Campbell I., Diegel O., Huff R., Kowen J., Wohlers Report 2021: 3D Printing and Additive Manufacturing Global State of the Industry, Wohlers Associates, Fort Collins, CO, USA (2021)
3. Characterizing particle emissions from a direct energy deposition additive manufacturing process and associated occupational exposure to airborne particles
4. A review of the wire arc additive manufacturing of metals: properties, defects and quality improvement
5. Wire arc additive manufacturing of aluminium alloys: A review
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