Machine learning-based image processing for on-line defect recognition in additive manufacturing

被引:241
|
作者
Caggiano, Alessandra [1 ,2 ]
Zhang, Jianjing [3 ]
Alfieri, Vittorio [4 ]
Caiazzo, Fabrizia [4 ]
Gao, Robert [3 ]
Teti, Roberto [2 ,5 ]
机构
[1] Univ Naples Federico II, Dept Ind Engn, Naples, Italy
[2] Fh J LEAPT UniNaples, Fraunhofer Joint Lab Excellence Adv Prod Technol, Naples, Italy
[3] Case Western Reserve Univ, Dept Mech & Aerosp Engn, Cleveland, OH 44106 USA
[4] Univ Salerno, Dept Ind Engn, Fisciano, SA, Italy
[5] Univ Naples Federico II, Dept Chem Mat & Ind Prod Engn, Naples, Italy
关键词
Machine learning; Additive manufacturing; Fault recognition; LASER;
D O I
10.1016/j.cirp.2019.03.021
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A machine learning approach for on-line fault recognition via automatic image processing is developed to timely identify material defects due to process non-conformities in Selective Laser Melting (SLM) of metal powders. In-process images acquired during the layer-by-layer SLM processing are analyzed via a bi-stream Deep Convolutional Neural Network-based model, and the recognition of SLM defective condition-related pattern is achieved by automated image feature learning and feature fusion. Experimental evaluations confirmed the effectiveness of the machine learning method for on-line detection of defects due to process non-conformities, providing the basis for adaptive SLM process control and part quality assurance. (C) 2019 Published by Elsevier Ltd on behalf of CIRP.
引用
收藏
页码:451 / 454
页数:4
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