METHOD OF MAKING PARTS, MAINLY FASTENING PARTS, OF HARD-TO-DEFORM LOW DUCTILE TITANIUM ALLOYS Russian patent published in 1995 - IPC

FIELD: metal pressure forming. SUBSTANCE: method comprises steps of making parts by formation of homogeneous fine-grain recrystallisation structure at deforming hydrogenated blank at temperature, being by 20-50 C more, than a temperature of beginning of recrystallisation of hydrogenated alloy; performing vacuum annealing, combined with a recrystallisation annealing, at temperature, being by 10-100 C lower, than a transition temperature value. EFFECT: enhanced quality of parts, made by such method. 1 cl, 1 tbl