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Towards a circular metal additive manufacturing through recycling of materials: A mini review

小综述: 通过材料回收实现金属增材制造的循环利用

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Abstract

Additive manufacturing is a new emerging technology which is ideal for low-to-zero waste production, and it is considered to be a green and clean process that has the potential to lower the cost and energy consumption of production. However, the cost of the feedstock for additive manufacturing and the additive manufactured parts is usually very high, which hinders the further application of additive manufacturing, especially for the metal additive manufacturing. The concept of circular metal additive manufacturing involves the recycling of the metal feedstock and the additive manufactured parts leading to the truly zero waste production and the most energy saving. This paper reviews the technologies that help the formation of a circular metal additive manufacturing through recycling of the feedstocks and the damaged metal parts. Reactive metals, such as titanium, tend to be contaminated easily during handling and production. Recycling of the titanium for achieving a circular titanium additive manufacturing is reviewed in detail.

摘要

增材制造是一种新兴的废物排放接近于零的生产技术, 它被公认为是一种绿色清洁的生产工艺, 具有降低生产成本和能耗的潜力. 但是增材制造的原料成本和增材制造的零部件成本通常比较高, 严 重阻碍了增材制造, 尤其是金属增材制造的进一步工业应用. 循环金属增材制造的概念涉及到金属原 料和零部件的回收利用, 从而实现真正的零废物产生和最大程度的能量节省. 本文综述了通过循环利 用增材制造过程中的金属原料和金属零件形成循环的金属增材制造技术. 活性金属, 例如钛, 在粉末 处理和生产过程中很容易被污染, 本文详细介绍了钛材增材制造过程中金属钛的综合利用.

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  1. These authors contribute equally: XIA Yang, DONG Zhao-wang.

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  1. School of Metallurgy and Environment, Central South University, Changsha, 410083, China

    Yang Xia  (夏阳), Zhao-wang Dong  (董朝望), Xue-yi Guo  (郭学益) & Qing-hua Tian  (田庆华)

  2. State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, China

    Yong Liu  (刘咏)

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Correspondence to Yang Xia  (夏阳) or Xue-yi Guo  (郭学益).

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Foundation item: Project(51922108) supported by the National Natural Science Foundation of China; Project(2019JJ20031) supported by Hunan Natural Science Foundation, China; Project(2019SK2061) supported by Hunan Key Research and Development Program, China

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Xia, Y., Dong, Zw., Guo, Xy. et al. Towards a circular metal additive manufacturing through recycling of materials: A mini review. J. Cent. South Univ. 27, 1134–1145 (2020). https://doi.org/10.1007/s11771-020-4354-6

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