International Journal of Extreme Manufacturing, Volume. 3, Issue 2, 22002(2021)

Defect inspection technologies for additive manufacturing

Yao Chen1, Xing Peng1, Lingbao Kong1、*, Guangxi Dong1, Afaf Remani2, and Richard Leach2
Author Affiliations
  • 1Shanghai Engineering Research Center of Ultra-precision Optical Manufacturing, Department of Optical Science and Engineering, Fudan University, Shanghai, People’s Republic of China
  • 2Manufacturing Metrology Team, University of Nottingham, Nottingham, United Kingdom
  • show less

    Additive manufacturing (AM) technology is considered one of the most promising manufacturing technologies in the aerospace and defense industries. However, AM components are known to have various internal defects, such as powder agglomeration, balling, porosity, internal cracks and thermal/internal stress, which can significantly affect the quality, mechanical properties and safety of final parts. Therefore, defect inspection methods are important for reducing manufactured defects and improving the surface quality and mechanical properties of AM components. This paper describes defect inspection technologies and their applications in AM processes. The architecture of defects in AM processes is reviewed. Traditional defect detection technology and the surface defect detection methods based on deep learning are summarized, and future aspects are suggested.


    Get Citation

    Copy Citation Text

    Yao Chen, Xing Peng, Lingbao Kong, Guangxi Dong, Afaf Remani, Richard Leach. Defect inspection technologies for additive manufacturing[J]. International Journal of Extreme Manufacturing, 2021, 3(2): 22002

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: Topical Review

    Received: Sep. 21, 2020

    Accepted: --

    Published Online: Jan. 10, 2022

    The Author Email: Kong Lingbao (



    Please enter the answer below before you can view the full text.