Process die forging arrangement and functional uniformity of titanium bar forgings. After recrystallization heat treatment, the metal in the area of intense activity is equiaxed fine crystal at low times and equiaxed fine crystal at high times. In the difficult deformation area, the arrangement often preserves the condition before deformation due to the small amount of deformation or no deformation.
In die forging some important titanium rod blank products process parts (such as compressor disk, blade, etc.), in addition to the manipulation of the deformation temperature under TB and proper deformation degree, the arrangement of the manipulation of the original blank is very important, otherwise, the coarse grain arrangement or some disadvantages to genetic forgings, and after the heat treatment and cannot eliminate, will incur forgings. Die forging is usually used to make the final blank which is close to the shape and scale of the product, followed only by heat treatment and cutting. Casting temperature and deformation degree are the fundamental factors to determine the arrangement and function of titanium alloy. The heat treatment of titanium rod blank is different from that of steel.
Therefore, the process standard of the final step of die forging of titanium rod blank products has a unique and important effect. In order to obtain high strength and plasticity, it is necessary to make the total deformation of the blank not less than 30%, the deformation temperature does not exceed the phase change temperature, and should strive for temperature and deformation degree in the whole deformation blank can be distributed evenly.
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