Titanium ingot forging and broadening process

Abstract

The invention discloses a titanium ingot forging and broadening process. The titanium ingot forging and broadening process is characterized in that the process comprises the following steps of: erecting a titanium ingot with a diameter D below a forging press and forging downwards until the diameter of the upset titanium ingot is less than or equal to 1.2D; flatly placing the upset titanium ingot on a lower anvil of the forging press so that the axis of the titanium ingot in a length direction is vertical with the axis of a press operation vehicle; rolling the upset titanium ingot and controlling the width of the titanium ingot to be 1.2-1.3 times as much as the width of a final continuously-rolled titanium ingot product; rotating the transversely-rolled titanium ingot for 90 degrees so that the axis of the titanium ingot in the length direction is parallel to the axis of the press operation vehicle; vertically drawing out one end of the titanium ingot through clamping of an operation vehicle of the forging press; alternatively forging along a thickness direction and a width direction of the titanium ingot until the requested thickness and width are obtained, namely manufacturing the continuously-rolled titanium ingot. With the adoption of the titanium ingot forging and broadening process, the continuously-rolled titanium ingot with the width more than or equal to 1.5D can be produced, so that the need of the continuously-rolled titanium ingot with the width more than or equal to 1500mm is satisfied. And the product properties are good.

Description

technical field [0001] The invention belongs to a nonferrous metal forging method, and relates to a titanium ingot forging widening process, which is suitable for producing a continuous rolling titanium billet (width B) by forging a cylindrical titanium (including titanium and titanium alloy) ingot. [0002] The key point of the invention is that the titanium ingot (diameter D) is widened by transverse rolling, and a continuously rolled titanium billet with a width B≥1.5D can be obtained. Background technique [0003] With the development of technology, various industries have higher and higher requirements for the width of titanium coils, and now the required width has reached more than 1500mm. The width of the titanium coil is the same as that of the continuous rolling titanium billet, which requires the production of a continuous rolling titanium billet with a larger width. [0004] In the prior art, the production of continuous rolling titanium billets generally adopts ...

AI Technical Summary

Problems solved by technology

At present, the diameter of titanium ingots produced in China is D≤1030mm, and only the width of titanium billets B≤1390mm can be obtained, which cannot meet the actual needs

And the edge of the continuous rolling billet with a width ≥ 1300mm produced by a titanium ingot with D=1030mm has loose and heavy quality problems. In fact, only when B≤1.25D can a continuous rolling titanium billet with better quality be obtained; because forging B When continuously rolling titanium billets ≥ 1.25D, due to the s