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J Weld Join > Volume 31(1); 2013 > Article
Journal of KWJS 2013;31(1):33-37.
DOI: https://doi.org/10.5781/KWJS.2013.31.1.33    Published online June 4, 2013.
Technologies for Robotized Welding of Big Aluminium Structures with Tolerances for High Speed Trains
Sang Chul Lee
Abstract
Robotized MIG welding of large aluminium components for high speed trains is state-of-the-art. The implementation of online laser cameras enables seam tracking and adoptive modification of welding parameters. A constant fill is achieved regardless of the gap tolerances. Friction Stir Welding has been introduced to the market as a reliable and fast joining technology. The advantages of high welding speeds and the elimination of arc light, fumes and liquefaction in the welding spot lead to economical realisation of heavy-duty gantry systems. FSW robots offer a high flexibility with regard to welding of curved parts, and can be equipped with laser cameras for exact joint tracking.
Key Words: Aluminum alloys, Metal inert gas welding, Friction stir welding
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