Abstract

Additive manufacturing (AM) technology is not only used to make 3D objects but also for rapid prototyping. In industry and laboratories, quality controls for these objects are necessary though difficult to implement compared to classical methods of fabrication because the layer-by-layer printing allows for very complex object manufacturing that is unachievable with standard tools. Furthermore, AM can induce unknown or unexpected defects. Consequently, we demonstrate terahertz (THz) imaging as an innovative method for 2D inspection of polymer materials. Moreover, THz tomography may be considered as an alternative to x-ray tomography and cheaper 3D imaging for routine control. This paper proposes an experimental study of 3D polymer objects obtained by additive manufacturing techniques. This approach allows us to characterize defects and to control dimensions by volumetric measurements on 3D data reconstructed by tomography.

© 2016 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Liquid index matching for 2D and 3D terahertz imaging

J. B. Perraud, J. Bou Sleiman, B. Recur, H. Balacey, F. Simoens, J. P. Guillet, and P. Mounaix
Appl. Opt. 55(32) 9185-9192 (2016)

Noncontact detection of Teflon inclusions in glass-fiber-reinforced polymer composites using terahertz imaging

Jin Zhang, Jie Wang, Xiaohui Han, Hong-Liang Cui, Changcheng Shi, Jinbo Zhang, and Yan Shen
Appl. Opt. 55(36) 10215-10222 (2016)

Terahertz wave three-dimensional computed tomography based on injection-seeded terahertz wave parametric emitter and detector

Saroj R. Tripathi, Yuya Sugiyama, Kosuke Murate, Kazuki Imayama, and Kodo Kawase
Opt. Express 24(6) 6433-6440 (2016)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Supplementary Material (3)

NameDescription
» Visualization 1: AVI (2797 KB)      Video of different projection set.
» Visualization 2: AVI (10848 KB)      Video summary of information extracted from reconstruction.
» Visualization 3: AVI (13876 KB)      Video summary of information extracted from reconstruction.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription