A Study on Laser Welding for 3D Printed Metal Plate and Polymer

예, 강현; 김, 성욱; 박, 거동; 최, 해운

doi:10.5781/jwj.2016.34.4.23

Journal of Welding and Joining

2016

DOI: 10.5781/jwj.2016.34.4.23

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A Study on Laser Welding for 3D Printed Metal Plate and Polymer

강현 예¹,

성욱 김²,

거동 박³

et al.

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Evaluation of the Accuracy of Dental Prostheses manufactured by Metal 3D Printer

Hwang

Kim

et al. 2018

Journal of Welding and Joining

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Recently, in the era of the fourth industrial revolution, the main technology trend of digital dentistry is to make dental prostheses using 3D printer. In this study, we evaluated the accuracy of dental prostheses(coping) made with metal 3D printer. The equipment used in the experiment are Cr-Co 3D printer, 3D scanner, Analysis Software(Geomagic). and Experimental process parameters are hatching(1way, cross, counterclockwise) and orientation(0 degrees, 45 degrees, 90 degrees). The 3D printing accuracy of the dental prostheses(coping) was excellent for "Hatching cross" and "Orientation 90 degrees." That is, The dental prostheses(coping) manufactured by using 3D printer has higher accuracy with higher heat emission. If the angle of orientation is less than 45 degree, the roughness of the lower part of the coping is not particularly good. and this has a negative effect on the suitability of inner side crown.

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Evaluation of the Accuracy of Dental Prostheses manufactured by Metal 3D Printer

Hwang

Kim

et al. 2018

Journal of Welding and Joining

View full text Add to dashboard Cite

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Non-Destructive Testing of Laser Welded Hydrogen Storage Tank Liner Using Optical Coherence Tomography

Kim,

Shin,

Lee

et al. 2024

J Weld Join

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The Type 4 hydrogen storage tank has an internal liner made of polymer material. Instead of the joining of two cylinder-shaped liners through butt-joint thermal fusion bonding, a faster joining can be achieved through lap-joint laser welding. Non-destructive testing is required to inspect the quality of laser-welded areas and to detect pore defects. In this study, the interface of a laser-welded region is investigated using optical coherence tomography to detect internal pore defects, where the maximum thickness of the liner is found to be approximately 3 mm. Optical coherence tomography images with defects are then used for supervised YOLOv2 deep learning. Real-time detection of internal defects is successfully performed on laser-welded liner samples.

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A Study on Laser Welding for 3D Printed Metal Plate and Polymer

Cited by 2 publications

References 4 publications

Evaluation of the Accuracy of Dental Prostheses manufactured by Metal 3D Printer

Evaluation of the Accuracy of Dental Prostheses manufactured by Metal 3D Printer

Non-Destructive Testing of Laser Welded Hydrogen Storage Tank Liner Using Optical Coherence Tomography

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