Analysis of Welding Stability Based on Plume Images during High-power Disc Laser Welding

DOI

10.2991/emeit.2012.265How to use a DOI?

Keywords

High-power disc Laser Welding, Metal vapor plume, Information entropy.

Abstract

During the high-power disc laser welding, metal vapor plume is the important phenomenon and contains a lot of information that related to the welding quality. This paper researches a method for analyzing the welding stabilty by monitoring the plume during the welding of stainless steel 304. In the high-power disc laser welding, a high-speed camera was used to capture the ultraviolet band and visible band meal vapor plume images. The information entropy and area ratio were defined as the characteristic parameters of plume to determine the stability of welding. Image algorithms such as Wiener filtering, dynamic threshold segmentation, mathematical morphology were applied to obtain the characteristic parameter curves in the welding process. Welding experimental results showed that the proposed characteristic parameters could accurately reflect the welding stability status of high-power disc laser welding process.

Copyright

© 2012, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yingying LIU
AU  - Xiangdong GAO
AU  - Qian WEN
PY  - 2012/09
DA  - 2012/09
TI  - Analysis of Welding Stability Based on Plume Images during High-power Disc Laser Welding
BT  - Proceedings of the 2nd International Conference on Electronic & Mechanical Engineering and Information Technology (EMEIT 2012)
PB  - Atlantis Press
SP  - 1205
EP  - 1208
SN  - 1951-6851
UR  - https://doi.org/10.2991/emeit.2012.265
DO  - 10.2991/emeit.2012.265
ID  - LIU2012/09
ER  -