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Aluminum-alloy tank melon petal punching device and punching method

A technology of aluminum alloy and melon petals, which is applied in the field of aerospace design and manufacturing, can solve problems such as over-burning of parts, tensile strength and yield strength indicators that cannot meet the design requirements, and achieve low manufacturing cost, wide application range and high precision. Effect

Inactive Publication Date: 2017-05-17
CAPITAL AEROSPACE MACHINERY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the 2219 aluminum alloy material melon petals and top cover are produced by the existing process, the tensile strength and yield strength indicators cannot meet the design requirements, the tensile strength is 420MPa, and the yield strength is 320MPa
In addition, multiple solution treatments can easily lead to overburning of parts

Method used

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  • Aluminum-alloy tank melon petal punching device and punching method

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Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] Such as figure 1 As shown, the device includes an upper pressing block 2 , a forming die 3 , an insulating backing plate 6 and a lower pressing block 7 installed coaxially.

[0033] The forming die 3 is installed above the insulating backing plate 6 , and an installation groove is processed on the upper surface of the insulating backing plate 6 to place the inductor coil 5 . The parts 4 to be processed are placed between the forming die 3 and the inductor coil 5 . The upper pressing block 2 is installed on the forming die 3 to play the role of positioning and pressing. The lower pressing block 7 is located below the insulating backing plate 6 .

[0034] Said coaxial installation means that the upper pressing block 2, the forming die 3, the insulating backing plate 6 and the lower pressing block 7 are coaxially installed with...

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Abstract

The invention belongs to aerospace design and manufacturing technologies, and particularly discloses an aluminum-alloy tank melon petal punching device and punching method. The punching device comprises an upper pressing block, a molding female die, an insulating padding plate and a lower pressing block, wherein the upper pressing block, the molding female die, the insulating padding plate and the lower pressing block are coaxially installed, the molding female die is arranged on the upper portion of the insulating padding plate which is provided with an installing groove, an inductor coil is arranged in the installing groove, the upper pressing block is arranged on the molding female die, and the lower pressing block is arranged on the lower portion of the insulating padding plate. The punching method comprises the steps that plates are subjected to deep-drawing deformation, punching machining is conducted by means of a magnetic pulse technology, the restrictive use process of secondary solid solution treatment is eliminated, the risk that parts are prone to overburning due to multiple times of solid solution treatment is avoided, and meanwhile tensile strength and yield strength of the parts are improved.

Description

technical field [0001] The invention belongs to aerospace design and manufacturing technology, and in particular relates to a convex hole device and method for melon petals of a carrier rocket storage tank in a deep-drawn deformation state after solid solution treatment of 2219 aluminum alloy. Background technique [0002] The bottom of the carrier rocket storage tank is composed of melon petals and top cover tailor-welded, and flanging holes are designed on some of the melon petals. The forming process of melon petals with flanging holes and top cover using LD10 aluminum alloy material. With the development of model research and development, the design has higher and higher requirements for the mechanical properties of the product, and higher requirements for the reliability of the product. The bottom of a new type of storage tank is produced for the first time using 2219 aluminum alloy material, and the heat treatment state of the raw material is O state. However, when t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/04B23P15/00
CPCC22F1/04B23P15/00
Inventor 张文忠何铁军李杰王永铭孟宪昌贾春莉孟凡成王大刚郭睿英升琪
Owner CAPITAL AEROSPACE MACHINERY
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