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Diffusion welding manufacturing method for aircraft rudder assembly

A technology of aircraft rudder assembly and manufacturing method, applied in manufacturing tools, welding equipment, non-electric welding equipment and other directions, can solve the problems of resistance seam welding edge cracking, unstable flight process of aircraft, etc.

Active Publication Date: 2015-04-22
北京新航钛空天技术有限公司
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Problems solved by technology

In the actual hypersonic flight of the rudder assembly processed in this way, due to the flight resistance, the edge part of the resistance seam welding will crack, causing the flight process of the aircraft to be unstable.
[0003] This shows that the above-mentioned existing aircraft rudder assembly still has deficiencies in the manufacturing method, and needs to be further improved urgently

Method used

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  • Diffusion welding manufacturing method for aircraft rudder assembly
  • Diffusion welding manufacturing method for aircraft rudder assembly
  • Diffusion welding manufacturing method for aircraft rudder assembly

Examples

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Embodiment Construction

[0028] see Figure 4 Shown, the manufacturing method of a kind of aircraft rudder component diffusion welding of preferred embodiment of the present invention, comprises the following steps:

[0029] (1) Cutting, processing the titanium alloy plate to the size required by the drawing;

[0030] (2) The plate is machined into a vertically symmetrical profile as shown in the figure, and the rudder rib and the edge of the edge to be diffused welded are finely milled to a roughness of ≤1.6μm and a flatness of ≤0.002mm to achieve Roughness requirements before diffusion welding, processing parameters: spindle speed: 500-1800r / min, cutting speed: 150-200mm / min, tool feed: 0.2-0.5mm;

[0031] (3) Chemical degreasing, degreasing liquid formula: Na 3 PO 4 12H 2 O: 45-60g / L, Na 2 CO 3 10H 2 O:40-50g / L,Na 2 SiO 3 : 20-35g / L, water balance; solution temperature 60-90 ℃, degreasing time 15-20min, remove surface grease;

[0032] (4) Alkali washing, the formula of alkaline washing so...

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Abstract

The invention relates to a machining method of an aircraft rudder assembly, in particular to a diffusion welding manufacturing method for the aircraft rudder assembly. The manufacturing method comprises the following steps of: (1) feeding; (2) machining and forming; (3) chemically deoiling; (4) performing alkaline washing; (6) washing; (7) drying; (8) performing diffusion welding; and (9) performing finish-milling until contour dimension reaches product design requirements. According to the manufacturing method, the problem of partial cracking of a resistance seam welded edge of the rudder assembly is solved. The provided diffusion welding process of the rudder assembly has a positive effect on promotion and application of the diffusion welded rudder assembly on an aircraft.

Description

technical field [0001] The invention relates to a processing method for an aircraft rudder assembly, in particular to a manufacturing method for diffusion welding of an aircraft rudder assembly. Background technique [0002] Aircraft rudder components are often realized by the structure of skeleton 1 and skin 2, such as figure 1 , figure 2 , image 3 As shown, the manufacturing method is to process the rudder frame 1 by machining, and form the skin 2 by hot pressing, and then weld the skin 2 to the frame 1 by resistance welding. The middle part of the skin is welded by resistance spot welding, and the edge of the skin is welded by resistance Seam welding. In the actual hypersonic flight of the rudder assembly processed in this way, due to the flight resistance, the edge part of the resistance seam welding will crack, causing the flight process of the aircraft to be unstable. [0003] It can be seen that the above-mentioned existing aircraft rudder assembly still has def...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B23K20/14B23K20/24
Inventor 王振强李亚丽胡鑫胡建国李波何东李凯祥李峰李鹏
Owner 北京新航钛空天技术有限公司
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