engleski

Butt welding of pipes in steam boiler manufacturing using CNC TIG welding machine

This paper explains application of CNC automat for TIG welding of butt pipe joints in steam boiler manufacturing. Welding is performed in single pass "I" weld groove preparation. Because of the small diameter pipe weld specifics, welding parameters were split in several different parts, related to pipe circumference. Beside the welding parameters for automatic TIG welding of 15Mo3 and 10 CrMo 9 10 pipes, authors offer some results of weld joints quality investigation. In the end of the paper, the techno-economic comparison between automatic and manual TIG is given

TIG welding; CNC automat; steam boiler; pipes

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