Research of the influence of parameters of isothermal deformation and heat treatment on structure and mechanical properties punchings from alloy VT6ch
Isothermal punching is the perspective cost-efficient form-building technological process for the titanium alloys, allowing to lower materials consumption and labor input of the manufacturing in comparison with the traditional multitransitional manufacturing techniques of details from forgins and plates. One of the problems of this work is research of the influence of modes of deformation and thermal processing on structure and mechanical properties of isothermal punching from alloy VT6ch. It has been shown that isothermal die forging on the final step of deformation leads to elongation increase up to 14%. Further heat treatment (recrystallization annealing) results in globular-lamellar structure formation which is most favorable in order to provide ultimate tensile strength values not less than 995 MPa.