Titanium alloy cylindrical skin arc pre-bending and shape correcting method
A titanium alloy and circular arc technology is applied in the field of circular arc pre-bending and shape correction of titanium alloy cylindrical skins, which can solve the problems of difficulty in forming arcs, and the difficulty of forming blanks for shape correction, etc., and achieves simple forming methods, easy implementation, The effect of overcoming the unfavorable situation of straight line segments and difficult arcing
Pending Publication Date: 2022-03-22
HUBEI SANJIANG AEROSPACE GRP HONGYANG ELECTROMECHANICAL
View PDF5 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] This application provides a titanium alloy tubular skin arc pre-bending and shape correction method, which solves the technical problems in the related art that titanium alloy materials are not easy to form an arc when rolled, and the billet is difficult to mold and implement shape correction after rolling.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0031] The embodiment of the present application provides a titanium alloy tubular skin arc pre-bending and shape correction method, which solves the problems in the related art that the titanium alloy material is not easy to form an arc when it is rolled, and it is difficult to mold the billet after rolling and perform shape correction. technical problem.
[0032] The technical solution in the embodiment of the present application is to solve the above-mentioned technical problems, and the general idea is as follows:
[0033] A titanium alloy tubular skin arc pre-bending and shape correction method, comprising: forming a flat plate blank by rough rolling to form a first intermediate blank; after forming the first intermediate blank, using an arc bending mold to bend the first intermediate blank Carry out pre-bending to form a second arc-shaped blank; after forming the second arc-shaped blank, put the second arc-shaped blank on the mold tire, and use at least two straps to loc...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an arc pre-bending and shape correcting method for a cylindrical titanium alloy skin, relates to the technical field of titanium alloy part forming, and solves the technical problems that in the prior art, a titanium alloy material is not easy to form an arc during rolling forming, and a rolled blank is difficult to mold and carry out shape correction. Comprising the following steps: roughly rolling and forming a flat blank to form a first intermediate blank; after a first middle blank is formed, the first middle blank is pre-bent through an arc bending die, and a second arc-shaped blank is formed; after a second arc-shaped blank is formed, the second arc-shaped blank is arranged on the mold in a sleeving mode, at least two wrapping belts are adopted to be locked to the outer side of the second arc-shaped blank, and the second arc-shaped blank is attached to the mold in the stress state; and then the second arc-shaped blank and the mold are subjected to high-temperature creep heat correction. According to the method, the arc-shaped blank obtained through pre-bending is closer to the final arc state than the first middle blank, the blank can be conveniently attached to the mold in the stress state, and then the blank can meet the final cylindrical precision requirement in the free state through hot sizing.
Description
technical field [0001] The invention relates to the technical field of forming titanium alloy parts, in particular to a method for pre-bending and correcting the arc of a titanium alloy cylindrical skin. Background technique [0002] The rolling forming of flat blanks is a common method for manufacturing cylindrical parts. For cylindrical parts made of titanium alloy materials, the circular arc is generally formed by rolling, and then the inner and outer molds in the shape of a rotary body are used to load the rolled coils. The blanks are thermally corrected in the pressed state. [0003] At room temperature, titanium alloy materials have high deformation resistance, large springback, poor plasticity, and difficult forming. After rolling, the arc is large, and there are 100mm to 150mm long straight segments at both ends of the arc. Therefore, the state of the billet after rolling is very different from the final state of the cylinder, and it is difficult to install it betwe...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): B21D21/00
CPCB21D21/00
Inventor 张如平王维新李博洋钱春雨解世超陈龙
Owner HUBEI SANJIANG AEROSPACE GRP HONGYANG ELECTROMECHANICAL