METHOD FOR PRODUCING ARTICLE FROM TITANIUM ALLOY AND METHOD FOR THERMAL PROCESSING OF ARTICLE FROM TITANIUM ALLOY Russian patent published in 2003 - IPC

FIELD: mechanical engineering. SUBSTANCE: method involves deforming article at deformation extent ε, satisfying the requirement ε≤K₁•(18,5-1,8•10^-5σ2t

), where K₁=0.4-1 coefficient, σ_t is temporary resistance, Mpa; subjecting article to annealing for removing deposit and improving mechanical properties by heating article to temperature (T_h) selected from formula T_h = K₂•(σ_t-190)+360, where K₂=0.2-0.3 C/MPa is coefficient, σ_t is temporary resistance, MPa. Method may be used for manufacture of sheet constructions from titanium alloys with the use of forming processes, for example cold stamping, with following thermal processing. Method allows cyclic strength of article to be increased by eliminating or reducing number of intermediate annealing operations in the process of deformation. EFFECT: improved mechanical characteristics of article, increased efficiency by selecting optimal temperature modes, reduced labor intensity and manufacture cycle time, increased operation time of articles from expensive titanium alloys and reduced production costs. 3 cl, 1 tbl