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Titanium alloy box-shaped part hot drawing method

A technology for titanium alloys and parts, applied in other household appliances, household appliances, applications, etc., can solve the problems of hot drawing and forming of parts, and achieve the effect of convenient operation and use, simple tooling structure, and reduction of batch production costs.

Inactive Publication Date: 2018-06-12
BEIJING XINGHANG MECHANICAL ELECTRICAL EQUIP
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: how to solve the problem of hot drawing of titanium alloy parts with box-shaped sags on the complex surface, eliminate the defects of existing hot drawing process methods such as wrinkles and cracks, and achieve titanium alloys that are difficult to deform Precise forming of sheet metal parts

Method used

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  • Titanium alloy box-shaped part hot drawing method
  • Titanium alloy box-shaped part hot drawing method
  • Titanium alloy box-shaped part hot drawing method

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Embodiment Construction

[0032] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0033] Such as figure 1 As shown, the formed TA15 titanium alloy part is formed. The shape of the part is a hyperboloid surface that fits the aircraft cabin. It requires high precision, and there is a large area of ​​deep depression on the hyperboloid surface. Parts are difficult to form, unreasonable mold design or improper process is easy to form wrinkles on the surface, and the vertical wall and rounded corners of box-shaped parts are easy to crack.

[0034] Such as Figure 2 to Figure 4 As shown, a device provided by the present invention to realize the forming of the titanium alloy part TA15 with complex profiles includes an upper mold 1, a middle mold 2 and a lower mold 3, and the upper mold 1, the middle mold 2...

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Abstract

The invention elates to a titanium alloy box-shaped part hot drawing method, relates to the technical field of titanium alloy hot formation, can realize hot drawing and pressing formation of parts with such difficult deformation materials as titanium alloys and with box-shaped sinks on special-shaped curved surfaces, and solves the difficulties of low forming precision of the parts and easy wrinkling and cracking during forming. Through novel and reasonable mold structural design, different molded surfaces of the parts are formed in once forming process by adopting a two-pass drawing scheme. The tool structure is simple; the operation and the use are convenient; the batch production cost is reduced; the production efficiency is improved; and the precise forming difficulties of titanium alloy parts with complicated molded surfaces are solved.

Description

technical field [0001] The invention relates to the technical field of titanium alloy thermoforming, in particular to a method for thermally drawing a titanium alloy box-shaped part. Background technique [0002] Titanium alloy parts are more and more widely used in the field of aerospace. Generally, they are formed by thermoforming. The material is placed on the mold, pressurized after the sheet reaches the predetermined temperature, the upper and lower molds are closed, the sheet is deformed and attached to the mold, and the blank of the part is taken out after holding the pressure for a certain period of time to remove the remainder of the part. But now the thermoforming process mostly forms parts with relatively simple profiles such as single-curved parts or hyperboloids. Parts composed of multiple profiles with non-large curvature transitions are prone to wrinkles and cracks when ordinary hot-press forming is used. Parts using thermal deep-drawing technology do not per...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/20B21D51/52
CPCB21D22/20B21D51/52
Inventor 刘太盈鞠伟华胡晓勇沈华朱冬妹高海涛
Owner BEIJING XINGHANG MECHANICAL ELECTRICAL EQUIP
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