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Creep age forming method for wallboard and pre-pressing mold

A creep aging forming and creep aging technology, applied in the manufacturing field, can solve the problems of slow speed and poor quality of large-curvature wall panels, and achieve the effect of improving surface quality, large load and uniform load

Inactive Publication Date: 2016-08-17
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a creep aging forming method for wall panels that must rely on autoclave and large-size, large-curvature panel parts during press forming with slow speed and poor quality in the background technology. Method of variable aging forming and pre-pressing mold

Method used

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  • Creep age forming method for wallboard and pre-pressing mold
  • Creep age forming method for wallboard and pre-pressing mold
  • Creep age forming method for wallboard and pre-pressing mold

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Embodiment Construction

[0032] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0033] Such as figure 1 and figure 2 As shown, the present invention discloses a pre-compression mold for creep aging forming of wall panels, which includes an upper backing plate, an upper fixing plate, a lower fixing plate, a lower backing plate, several upper clamping plates, and several numbers of the same number as the upper clamping plates the lower pallet;

[0034] The positions between the upper fixing plate and the upper backing plate, and between the lower fixing plate and the lower backing plate are all positioned and fixed by several pins and bolts;

[0035] The top of the upper clamping plate is fixedly connected with the upper fixing plate;

[0036] The lower clamping plate is arranged under its corresponding upper clamping plate, and the bottom is fixedly connected with the lower fixing plate;

[0037] The upper clamping plate a...

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Abstract

The invention discloses a method for creep aging forming of wall panels and a pre-pressing mold. First, the pre-pressing mold is set on the workbench of a thermoforming machine tool, and then the wall panel blank is placed on the discharging platform of the pre-pressing mold. Close the pre-compression mold; then provide the temperature required for the creep aging of the wall panel under the pressure-holding state, and keep the temperature exceeding the preset time threshold; finally, when the temperature drops to no higher than 60°C, take out the wall panel pieces. The pre-press mold is loaded by a press, with uniform load and fast speed, especially suitable for rapid press forming of large-size and large-curvature wall panels. The invention breaks through the limitation that the existing creep aging forming must rely on pressure and heating in an autoclave.

Description

technical field [0001] The invention relates to the field of manufacturing technology, in particular to a wallboard creep aging forming method and a pre-pressing die. Background technique [0002] Creep age forming technology is a metal forming process that combines creep forming and aging strengthening. The process has the characteristics of simple forming process, good repeatability and high performance of formed parts, and has broad prospects in the field of aerospace. Creep age forming technology has been deeply studied, such as the patent No. CN 102925826 A disclosed by the National Patent Office for an autoclave-based integral wall creep age forming tooling and the patent No. CN 103691793 A An autoclave-based method for one-time forming of an aging-strengthened aluminum alloy monolithic panel. However, these creep aging forming methods must be used in combination with autoclave, which has poor adaptability. The patent No. is CN 102266887 A, a type of mechanically lo...

Claims

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Application Information

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IPC IPC(8): B21D37/10B21D37/16B21D5/06
CPCB21D37/10B21D5/06B21D37/16
Inventor 童国权马振武王石川陈峰崔保金何泽洲
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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