ARC WELDING OF ALUMINIUM ALLOYS Russian patent published in 2015 - IPC B23K9/16 B23K103/10

Abstract RU 2561617 C2

FIELD: process engineering.

SUBSTANCE: invention relates to arc gas-shielded welding of articles from aluminium alloy and can be used for making of welded aluminium structures in aircraft engineering, machine building, ship building, nuclear power engineering, etc. Welding article is placed in climatic chamber and blown with heat airflow at the rate of 0.02-0.5 m/s irrespective of shield gas outflow rate during welding. Note here that fed air is heated to temperature higher than that of welding surface by at least 2°C.

EFFECT: decreased cavitation in welds owing to removal of sorbed moisture from the surface.

3 dwg

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RU 2 561 617 C2

Authors

Brovko Andrej Viktorovich

Dates

2015-08-27—Published

2013-11-13—Filed