Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
A Design for Additive Manufacturing Method of Direct Metal Parts for Aerospace Applications
Submission Author:
Marcio Fernando Cruz , SP
Co-Authors:
Marcio Fernando Cruz, Anderson Vicente Borille, Luis Gonzaga Trabasso, Carlos Roberto Pansani de Haro, Felipe Brandão
Presenter: Marcio Fernando Cruz
doi://10.26678/ABCM.COBEM2017.COB17-1260
Abstract
In the aerospace industry, the additive manufacturing process for metal parts shows a huge potential. However, a challenge at the same order of magnitude is due to its low technology maturity, fragmented technology approaches and lack of methodological design approach for manufacturing. These constrain severely the use of metal additive manufacturing in the aerospace industry. This work presents a design for additive manufacturing (DFAM) method of direct metal part (end use part) for aerospace application in accordance with the constraints of the laser powder bed fusion process (L-PBF) and complementary processes, such as surface finishing. The proposed DFAM method consists of the concatenated activities: functional optimization, setting up of functional surfaces and build-up orientation of the part, 3D modeling procedure and manufacturing optimization, and integration of the knowledge of the L-PBF capabilities and complementary processes. A titanium airframe part has been designed and manufactured to verify the proposed DFAM method: it is shown that an optimized part in terms of weight and raw material savings has been successfully obtained. The part also met the aerospace requirements of smoothness and geometry uniformity. In spite of the promising outcome fully described herein, further design trials using other parts are necessary to fully validate the DFAM method, as other combinations of functional requirements and geometrical constraints may pose additional challenges.
Keywords
Design for additive manufacturing, Laser powder bed fusion, complementary processes, direct metal part, aerospace
