METHOD OF PROCESSING SHEET FROM TITANIUM ALLOY Russian patent published in 2019 - IPC C22F1/18 C22F3/00 B23K26/352 

FIELD: metallurgy.

SUBSTANCE: invention relates to local hardening of sheet workpieces from titanium alloy using a laser beam. According to one version, local section of sheet 1 of titanium alloy is melted by laser beam 2 along straight line or curved path along and/or across full or incomplete thickness. Simultaneously with remelting, aluminum is supplied in form of powder or wire into melt zone with possibility of its transition into liquid state and interaction with molten titanium. According to the second version, sheet is melted to full thickness, at that, for sheet or strips from aluminum alloy at sections corresponding to areas of local processing zones, and said sheet or strip is partially melted by laser beam. Sheet or strip made of aluminum alloy is separated by machining after required amount of remelting. Amount of aluminum and the level of heat input in both versions are controlled from the condition of obtaining titanium aluminides.

EFFECT: method provides higher rigidity of sheet workpieces from low-alloyed titanium alloy.

8 cl, 6 dwg