Additive Manufacturing of Aluminum Alloys for Aeronautic Applications: Advantages and Problems

Author:

Montanari Roberto1ORCID,Palombi Alessandra1,Richetta Maria1ORCID,Varone Alessandra1

Affiliation:

1. Department of Industrial Engineering, University of Rome “Tor Vergata”, 00133 Rome, Italy

Abstract

In aeronautics, additive manufacturing (AM) leads to specific benefits, mainly connected to topological optimization for weight reduction, the decrease in “buy-to-fly” ratio, and the operations of maintenance, repair, and overhaul. Al alloys processed by AM technologies are extensively investigated and play an increasing role in the production of aircraft structural parts. Based on the recent literature and research activity of the authors, this work examines advantages and drawbacks involved in the printing of Al alloys. Defects, microstructure, mechanical properties, development of new alloys, and postprocess treatments are described and critically discussed by focusing the attention on the effects of the specific alloy composition, AM process, and process parameters.

Publisher

MDPI AG

Subject

General Materials Science,Metals and Alloys

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