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.

铝合金通常用于不同的领域，最近人们对增材制造 (AM) 铝合金产生了相当大的兴趣。然而，由于孔隙形成和高开裂敏感性，一些研究成功地制造了高强度 2xxx 合金。这些合金的增材制造仍然面临着不同的挑战。本综述旨在深入了解 Al-Cu 合金增材制造的当前最新技术，并讨论了近年来提高制造部件完整性和性能的工艺、挑战和方法。首先，对AM过程进行介绍。然后，介绍了用于制造零件的主要技术，然后讨论了增材制造零件中发现的主要缺陷。