Lightweight materials, such as titanium alloys, magnesium alloys, and aluminium alloys, are characterised by unusual combinations of high strength, corrosion resistance, and low weight. However, some of the grades of these alloys exhibit poor formability at room temperature, which limits their application in sheet metal-forming processes. Lightweight materials are used extensively in the automobile and aerospace industries, leading to increasing demands for advanced forming technologies. This article presents a brief overview of state-of-the-art methods of incremental sheet forming (ISF) for lightweight materials with a special emphasis on the research published in 2015–2021. First, a review of the incremental forming method is provided. Next, the effect of the process conditions (i.e., forming tool, forming path, forming parameters) on the surface finish of drawpieces, geometric accuracy, and process formability of the sheet metals in conventional ISF and thermally-assisted ISF variants are considered. Special attention is given to a review of the effects of contact conditions between the tool and sheet metal on material deformation. The previous publications related to emerging incremental forming technologies, i.e., laser-assisted ISF, water jet ISF, electrically-assisted ISF and ultrasonic-assisted ISF, are also reviewed. The paper seeks to guide and inspire researchers by identifying the current development trends of the valuable contributions made in the field of SPIF of lightweight metallic materials.

中文翻译：

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轻质金属单点增量板成形的新趋势

轻质材料，如钛合金、镁合金和铝合金，具有不同寻常的高强度、耐腐蚀性和低重量的组合。然而，这些合金的一些等级在室温下表现出较差的可成形性，这限制了它们在钣金成形工艺中的应用。轻质材料广泛用于汽车和航空航天工业，导致对先进成型技术的需求不断增加。本文简要概述了用于轻质材料的渐进式板材成型 (ISF) 的最新方法，并特别强调了 2015-2021 年发表的研究。首先，提供渐进成形方法的回顾。其次，工艺条件（即成型工具、成型路径、成形参数）对拉丝表面光洁度、几何精度和传统 ISF 和热辅助 ISF 变体中金属板的工艺可成形性进行了考虑。特别注意回顾工具和金属板之间的接触条件对材料变形的影响。还回顾了与新兴渐进成形技术相关的先前出版物，即激光辅助 ISF、水射流 ISF、电辅助 ISF 和超声波辅助 ISF。该论文旨在通过识别在轻金属材料 SPIF 领域做出的宝贵贡献的当前发展趋势来指导和启发研究人员。考虑了传统 ISF 和热辅助 ISF 变体中金属板的工艺可成形性。特别注意回顾工具和金属板之间的接触条件对材料变形的影响。还回顾了与新兴渐进成形技术相关的先前出版物，即激光辅助 ISF、水射流 ISF、电辅助 ISF 和超声波辅助 ISF。本文旨在通过识别在轻金属材料 SPIF 领域做出的宝贵贡献的当前发展趋势来指导和启发研究人员。考虑了传统 ISF 和热辅助 ISF 变体中金属板的工艺可成形性。特别注意回顾工具和金属板之间的接触条件对材料变形的影响。还回顾了与新兴渐进成形技术相关的先前出版物，即激光辅助 ISF、水射流 ISF、电辅助 ISF 和超声波辅助 ISF。本文旨在通过识别在轻金属材料 SPIF 领域做出的宝贵贡献的当前发展趋势来指导和启发研究人员。还回顾了激光辅助 ISF、水射流 ISF、电辅助 ISF 和超声波辅助 ISF。本文旨在通过识别在轻金属材料 SPIF 领域做出的宝贵贡献的当前发展趋势来指导和启发研究人员。还回顾了激光辅助 ISF、水射流 ISF、电辅助 ISF 和超声波辅助 ISF。本文旨在通过识别在轻金属材料 SPIF 领域做出的宝贵贡献的当前发展趋势来指导和启发研究人员。