A four-layer thin-wall mesh part with solid structure and its superplastic forming/diffusion bonding method

A technology of diffusion connection and solid structure, applied in forming tools, metal processing equipment, manufacturing tools, etc., can solve the problems of low structural rigidity, poor integrity of combined parts, weak strength, etc.

Active Publication Date: 2019-04-30
AEROSPACE RES INST OF MATERIAL & PROCESSING TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the thin-walled hollow parts are first formed by superplastic forming / diffusion connection, and then connected to the solid parts by welding, riveting or screwing, the integrity of the combined parts is poor, the structural rigidity is low, and the joints are easy to become weak area

Method used

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  • A four-layer thin-wall mesh part with solid structure and its superplastic forming/diffusion bonding method
  • A four-layer thin-wall mesh part with solid structure and its superplastic forming/diffusion bonding method
  • A four-layer thin-wall mesh part with solid structure and its superplastic forming/diffusion bonding method

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Embodiment Construction

[0027] Implementation examples such as Figure 1-7 As shown, for the superplastic forming / diffusion connection of a four-layer thin-walled mesh part with a solid structure made of TA15 titanium alloy, the specific steps are as follows:

[0028] (1) Preparation of raw materials and forming female mold: such as figure 1 As shown, the raw materials include an upper panel and a lower panel with a thickness of 1 mm, an upper core plate and a lower core plate with a thickness of 1 mm, and a solid structural part a and a solid structural part b. The cavity of the forming female mold is the grid part to be formed Shape; raw material is TA15 titanium alloy;

[0029] (2) Forming of two-layer panels: such as figure 2 As shown, the two-layer panels are placed in the forming female mold, and the two-layer panels are placed up and down; then the two-layer panels and the forming female mold are heated to the superplastic forming temperature (about 900°C) of the raw material TA15 titanium ...

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Abstract

The invention relates to a superplastic forming / diffusion connection method of a four-layer thin-wall grid part containing solid structures and belongs to the technical field of metal material forming. By means of the method, before superplastic forming / diffusion connection, in-process embedding of solid pre-embedded blocks is achieved; by means of subsequent superplastic forming / diffusion connection, integrated forming, in a technological process, of thin plate structures and the embedded type solid pre-embedded blocks is completed; and the final part is good in integrality. The four-layer structure thin-wall grid part formed through the superplastic forming / diffusion connection process can be used for manufacturing rudder and wing type parts of aerospace crafts, and the structure weightreduction requirement is met.

Description

technical field [0001] The invention relates to a four-layer thin-walled grid part with a solid structure and its superplastic forming / diffusion connection method, in particular to a superplastic forming / diffusion connection process with a preset solid pre-embedded block structure, that is, a The invention discloses a composite manufacturing method of a thin-walled hollow structure combined with a solid structure, which belongs to the technical field of metal material forming. The material of the four-layer thin-walled grid part with solid structure is metal, and the blank of the four-layer thin-walled grid part with solid structure includes two layers of panels and two layers of core boards, and the two layers of core boards are located on the two layers Between the panels, the solid structural member is located between the panels and the core. Background technique [0002] The superplastic forming / diffusion bonding process is usually applied to the forming of sheet metal,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D26/021B21D26/031B21D37/16
CPCB21D26/021B21D26/031B21D37/16
Inventor 高鹏阴中炜微石
Owner AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
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