A kind of preparation method and device of tc11 titanium alloy cake billet with high flaw detection level

Abstract

The embodiment of the invention provides a preparing method and device for a TC11 titanium alloy biscuit with a high flaw detection level. The method comprises the following steps that a rod is subjected to isothermal forging, and a first biscuit body is obtained after water cooling; the first biscuit body is subjected to two-firing and three-upsetting process for n times to obtain a second biscuit body with the same size as the first biscuit body; the second biscuit body is subjected to solution treatment to form a third biscuit body; the third biscuit body is subjected to the two-firing andthree-upsetting process for m times to obtained a fourth biscuit body with the same size as the third biscuit body; and the fourth biscuit body is subjected to rolling and biscuit fining, and the target biscuit is obtained. According to the method, the number forging firing times is effectively reduced, operation is simple and easy to conduct, and the forging cost is reduced. A blank material withthe high flaw detection level is provided for subsequent production of compressor discs and other forging workpieces, and the final forging workpiece flaw detection level is improved.

Description

Technical field: [0001] The invention belongs to the technical field of titanium alloy materials, and in particular relates to a preparation method and device for a TC11 titanium alloy cake material with high flaw detection level. Background technique: [0002] TC11 titanium alloy is widely used in aviation, aerospace, navigation and other fields due to its high specific strength and good high temperature resistance, mainly used in aero-engine turbine disks and compressor disks. With the improvement of the level of flaw detection requirements for engine disc forgings, the use of cake blanks with high flaw detection level is the key forging blank link to prepare high-quality disc forgings. At present, the TC11 cake prepared by the traditional free forging process has the disadvantages of uneven deformation, poor structure consistency, and poor flaw detection level ( figure 1 ), it is difficult to meet the technical requirements related to the flaw detection of engine disc fo...

AI Technical Summary

Problems solved by technology

At present, the TC11 cake prepared by the traditional free forging process has the disadvantages of uneven deformation, poor structure consistency, and poor flaw detection level ( figure 1 ), it is difficult to meet the technical requirements related to the flaw detection of engine disc forgings

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