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Hot drawing-air bulking composite forming method for high-temperature titanium alloy skin

A high-temperature titanium alloy, composite forming technology, used in forming tools, metal processing equipment, transportation and packaging, etc., can solve problems such as poor forming quality, and achieve improved part profile quality, low loss, and avoidance of wrinkling and cracking. Effect

Pending Publication Date: 2022-02-01
BEIJING XINGHANG MECHANICAL ELECTRICAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above analysis, the embodiment of the present invention aims to provide a high-temperature titanium alloy skin hot-drawing and inflation composite forming method to solve the problem of poor forming quality of high-temperature titanium alloy complex profile parts in the aerospace field in the prior art. question

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  • Hot drawing-air bulking composite forming method for high-temperature titanium alloy skin
  • Hot drawing-air bulking composite forming method for high-temperature titanium alloy skin
  • Hot drawing-air bulking composite forming method for high-temperature titanium alloy skin

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Embodiment 1

[0071] A specific embodiment of the present invention discloses a high-temperature titanium alloy skin hot-drawing air-expansion composite forming method, such as Figure 4 As shown, it is the formed high-temperature titanium alloy skin part 8, the material is Ti60, and it is the skin of the air intake of the aircraft. Large, the two ends of the conventional skin thermoforming are prone to wrinkles, and the wrinkles are usually cut off to repair the patch.

[0072] Such as Figure 2-Figure 3 As shown, it is the formed part blank 4 and the process plate 3, and the process plate 3 has an air passage 7.

[0073] Specific steps include:

[0074] Step S1: Convex-concave mold structure design.

[0075] Convex mold structure such as figure 1 shown. It specifically includes die 1, blank holder 2, process plate 3 and punch 6, binder ring 2 is set between die 1 and punch 6, process plate 3 is set between punch 6 and press ring 2 , the die 1 is located above the punch 6 . The mate...

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Abstract

The invention relates to a hot drawing-air bulking composite forming method for high-temperature titanium alloy skin, belonging to the technical field of hot forming of high-temperature titanium alloy. The invention aims to solve the problem of poor forming quality of high-temperature titanium alloy complex profile parts in the aerospace field in the prior art. According to the method, a high-temperature titanium alloy blank is subjected to hot drawing in a one-time hot forming process, the high-temperature titanium alloy blank is preliminarily attached to a die, and then the high-temperature titanium alloy blank is completely attached to the mold through air bulking forming. According to the method, a composite forming process combining hot drawing and air bulking is adopted, so the skin blank is preliminarily attached to the convex-concave die during hot drawing and completely attached to the convex-concave die under an air bulking condition, the profile precision of the part is improved, and the loss of mechanical properties is reduced.

Description

technical field [0001] The invention relates to the technical field of high-temperature titanium alloy thermoforming, in particular to a method for hot-drawing and inflating composite forming of a high-temperature titanium alloy skin. Background technique [0002] High-temperature titanium alloy has excellent characteristics such as high specific strength and high temperature resistance, and has been widely used in the aerospace field. Titanium alloys are generally formed by thermoforming process. The forming process is as follows: cut the sheet blank according to the part, put the mold into the heating furnace, place the sheet on the mold after heating to the set temperature, and heat the sheet after reaching the predetermined temperature. Pressing, the upper and lower molds are clamped, the sheet metal 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, and the surplus of the part is removed....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D37/10B21D53/92B21D35/00B21D22/22B21D26/02
CPCB21D37/10B21D53/92B21D35/002B21D22/22B21D26/02
Inventor 刘太盈鞠伟华熊亮同郭成龙兰晓宸赛音
Owner BEIJING XINGHANG MECHANICAL ELECTRICAL EQUIP
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