Lightweight wall panel superplastic forming production method

A superplastic forming and manufacturing method technology, which is applied in the field of precision sheet metal processing, can solve the problems of difficult shape precision control, poor part integrity, high cost, etc., and achieve the effects of avoiding deformation control problems, improving efficiency, and eliminating residual stress

Inactive Publication Date: 2014-04-30
BEIJING HANGXING MACHINERY MFG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical solution of the present invention is to provide a light-weight wall panel superplastic forming manufacturing method, which can overcome the shortcomings of poor integrity of the

Method used

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  • Lightweight wall panel superplastic forming production method
  • Lightweight wall panel superplastic forming production method
  • Lightweight wall panel superplastic forming production method

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specific Embodiment approach

[0025] The specific implementation method is carried out according to the following process steps: the first step is to carry out plane expansion: according to the size of the part, the part is expanded into the same plane, the size of the blank and the position and size of the rib outline are determined, and then the welding position is determined, and the process is appropriately increased Allowance; the second step of blanking: according to the size of the blank after expansion, appropriately increase the process allowance, increase 66mm in the length direction, and increase 59mm in the width direction, see figure 2 , using laser cutting or numerical control punching methods to obtain two blanks with a thickness of 3mm and 2mm respectively; blow slag and deburr the above blanks; the third step of welding: pickling the parts to be welded before welding, and put them in a drying furnace Dry at 90°C to 100°C for 20min to 30min. Grind the welding area with a rotating wire brus...

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Abstract

The invention belongs to the field of precision sheet metal processing, and relates to a lightweight wall panel superplastic forming production method. The method comprises the following steps: 1, performing flat stretching to parts according to the sizes of the parts; 2, computing the size of a wall panel blank after stretching and cutting; 3, performing polishing, pickling and other surface treatment to the blank; 4, soldering an air intake pipe; 5, placing a superplastic formed blank into a mold cavity, keeping warm and compounding the mold, wherein the blank is bent into a preset shape; 6, filling high-pressure inertia gas into a sealed space to perform superplastic forming; 7, completing the superplastic forming, and thus obtaining the bent wall panel. The lightweight wall panel superplastic forming production method has the advantages that: the superplastic forming is adopted, so that the generation of springback, wrinkle, crack and other defects can be effectively avoided, and requirement on the dimensional accuracy of the parts is ensured.

Description

technical field [0001] The invention belongs to the field of precision sheet metal processing, and relates to a manufacturing method for superplastic forming of lightweight wallboards, which is suitable for forming various wallboards with certain curved shapes and complicated reinforcing ribs. Background technique [0002] Due to their excellent performance, aluminum alloys and titanium alloys are widely used in aerospace, rail transit, weaponry and other fields. In the field of aerospace, the integration and lightweight of large-scale panel parts and components are getting higher and higher, and the requirements for manufacturing precision are getting higher and higher. In the field of sheet metal forming, cold stamping is mostly used in industry at present. Compared with steel plates, forming aluminum alloys, titanium alloys and other sheets at room temperature has the disadvantages of large rebound and low plasticity, so forming strips under cold stamping conditions Wall...

Claims

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Application Information

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IPC IPC(8): B23P15/00B21D26/031
CPCB21D26/021B21D26/031
Inventor 李保永秦中环张珊珊孙燚韩维群赵刚刘洋
Owner BEIJING HANGXING MACHINERY MFG CO LTD
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