High performance titanium alloy tube forming process and system

By inserting a prefabricated tubular self-supporting body before the hot drawing of titanium alloy tubes and reducing its strength after drawing, the problem of internal cavity support and removal in the prior art is solved, and the processing consistency and efficiency of titanium alloy tubes are improved.

CN122125076APending Publication Date: 2026-06-02SHAANXI XINDONGYING METAL PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHAANXI XINDONGYING METAL PROD CO LTD
Filing Date
2026-04-29
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing technologies struggle to simultaneously ensure stable internal cavity support during the multi-pass, low-temperature drawing process of titanium alloy tubes, while also facilitating rapid removal and cleaning after drawing, thus affecting processing consistency and efficiency.

Method used

Before each secondary temperature drawing, a prefabricated tubular removable self-supporting body is inserted into the tube, and the support state is formed to maintain continuous circumferential support capacity before drawing. After drawing, the strength attenuation triggering treatment makes it easy to remove, combined with intermediate heat treatment and surface cleaning.

Benefits of technology

It achieves continuous internal cavity support stability and easy-to-remove support during warm drawing, improving processing consistency and manufacturing efficiency, and is suitable for precision forming of high-performance titanium alloy tubes.

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Abstract

This invention provides a high-performance titanium alloy tube forming process and system, relating to the field of titanium alloy tube plastic processing technology. The process includes degreasing, cleaning, and surface pretreatment of the titanium alloy tube blank, and determining the diameter reduction and / or wall reduction for each drawing pass based on the target finished product size. Before each drawing pass, a prefabricated tubular removable self-supporting body is inserted into the inner cavity of the section to be drawn. This prefabricated tubular removable self-supporting body is composed of an inorganic particle skeleton and a deactivated bonding phase, and before insertion, it has a self-supporting form that allows it to be individually removed and maintain its tubular contour. This high-performance titanium alloy tube forming process and system solves the problem that existing multi-pass warm drawing processes for titanium alloy tubes struggle to simultaneously ensure stable inner cavity support during the drawing stage and rapid removal and subsequent cleaning after drawing.
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