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Physical Nature of the Processes in Structure Forming, Phase and Chemical Composition of pipe Permanent Joints when MMA Welding
2016
IOP Conference Series: Materials Science and Engineering
The paper outlines peculiarities of structure formation, phase and chemical composition in regard to heat content in molten electrode metal beads when pipe steel (steel 09G2S) welding using power sources with various energy characteristics. Mathematical calculations indicate an inverter power source provides minor heat content into the bead of electrode metal when welding. Experimental research has pointed at 4 -9 % increase in impact strength of joints produced using an inverter power source
doi:10.1088/1757-899x/125/1/012010
fatcat:wcfe2b3mqjdxxddjyys7awr5ri