期刊
MATERIALS SCIENCE AND TECHNOLOGY
卷 37, 期 9, 页码 805-829出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/02670836.2021.1958487
关键词
Additive manufacturing; aluminium alloy; Al-Cu; laser melting; wire-arc; defect; electron beam melting; porosity; cracking
This review provides an insight into the state-of-the-art of Al-Cu alloys additive manufacturing, discussing processes, challenges, and approaches to improving the integrity and performance of manufactured parts, including techniques used and defects found.
Aluminium alloys are commonly used in different areas and considerable interest has been given to additive manufacturing (AM) aluminium alloys recently. However, a few research studies succeeded in fabricating high-strength 2xxx alloys owing to porosity formation and their high cracking susceptibility. AM of these alloys is still suffering from different challenges. This review aimed at giving an insight into the current state-of-the-art of Al-Cu alloys AM and discusses the processes, challenges, and approaches in improving the integrity and performance of the parts manufactured in recent years. First, an introduction about the AM processes is given. Then, the main techniques used to fabricate parts are presented, and major defects found in additively manufactured parts are discussed afterward.
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