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    张昭

    • 教授     博士生导师   硕士生导师
    • 主要任职:Professor in Process Mechanics
    • 性别:男
    • 毕业院校:大连理工大学
    • 学位:博士
    • 所在单位:工程力学系
    • 学科:制造工艺力学. 工程力学. 计算力学
    • 办公地点:综合实验1号楼619
    • 联系方式:0411-84708432
    • 电子邮箱:zhangz@dlut.edu.cn

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    A review on in situ monitoring technology for directed energy deposition of metals

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    论文类型:期刊论文

    第一作者:Tang, Zi-jue

    通讯作者:Liu, WW (corresponding author), Dalian Univ Technol, Sch Mech Engn, Dalian 116024, Peoples R China.

    合写作者:Liu, Wei-wei,Wang, Yi-wen,Saleheen, Kaze Mojtaba,Liu, Zhi-chao,Peng, Shi-tong,Zhang, Zhao,Zhang, Hong-chao

    发表时间:2020-06-01

    发表刊物:INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY

    收录刊物:SCIE

    卷号:108

    期号:11-12

    页面范围:3437-3463

    ISSN号:0268-3768

    关键字:In situ monitoring; Additive manufacturing; Directed energy deposition; Molten pool; Laser deposition

    摘要:Directed energy deposition (DED) is an important additive manufacturing method for producing or repairing high-end and high-value equipment. Meanwhile, the lack of reliable and uniform qualities is a key problem in DED applications. With the development of sensing devices and control systems, in situ monitoring (IM) and adaptive control (IMAC) technology is an effective method to enhance the reliability and repeatability of DED. In this paper, we review current IM technologies in IMAC for metal DED. First, this paper describes the important sensing signals and equipment to exhibit the research status in detail. Meanwhile, common problems that arise when gathering these signals and resolvent methods are presented. Second, process signatures obtained from sensing signals and transfer approaches from sensing signals for processing signatures are shown. Third, this work reviews the developments of the IM of product qualities and illustrates ways to realize quality monitoring. Lastly, this paper specifies the main existing problems and future research of IM in metal DED.