NDLI: Simultaneous imaging and measurement of weld pool surface and metal transfer from weld pool reflected laser lines

Content Provider	IEEE Xplore Digital Library
Author	ZhenZhou Wang XiaoJi Ma YuMing Zhang
Copyright Year	2011
Description	Author affiliation: Institute for Sustainable Manufacturing and Department of Electrical and Computer Engineering, University of Kentucky, Lexington, 40506, USA (ZhenZhou Wang; XiaoJi Ma; YuMing Zhang)
Abstract	Precision control of gas metal arc welding process requires both weld pool surface and developed/detached droplet be simultaneously measured from the same sensor. To this end, laser lines are projected onto the weld pool surface and the reflected laser lines are intercepted and imaged. It is found from the images that the reflected laser lines are intercepted periodically by the droplets. While this interception adds complexity to the clustering of laser lines but it also provides sources to simultaneously detect the geometry of the droplet. This paper aims at extracting the laser lines from images that contain the reflected laser lines and extracting the droplet from the interception points. Experimental results verified the effectiveness of both the proposed image processing algorithms and modelling methods. Since the weld pool surface and droplet are extracted from the same image, a method thus has been developed to simultaneously image and measure the weld pool surface and metal transfer process.
Starting Page	1
Ending Page	6
File Size	2168312
Page Count	6
File Format	PDF
ISBN	9781612846989
e-ISBN	9781612847009
DOI	10.1109/WCICA.2011.5970599
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-21
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Mathematical model Equations Deformable models
Content Type	Text
Resource Type	Article

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