Investigation on arc light intensity in gas metal arc welding .2. Application to weld seam tracking

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The are sensor has been widely used to detect the weld seam by monitoring welding current or voltage variation during weaving in gas metal are welding (GMAW). In this work, the are light intensity and welding resistance are utilized as the seam tracking sensor. Signal characteristics of the are light intensity and welding resistance are compared when argon and CO2 gas are used for shielding. The performance of signal processing methods such as the least squares and integration methods is evaluated experimentally. It is found that the are light intensity provides higher quality signals than welding resistance with CO2 gas. While both signal processing methods demonstrate almost equal seam tracking capabilities, the integration method appears to be more efficient because of the short computation time.
Publisher
MECHANICAL ENG PUBL LTD
Issue Date
1997
Article Type
Article
Keywords

TO-WORKPIECE DISTANCE; PREDICTION

Citation

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE, v.211, no.5, pp.355 - 363

ISSN
0954-4054
DOI
10.1243/0954405971516338
URI
http://hdl.handle.net/10203/73402
Appears in Collection
ME-Journal Papers(저널논문)
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