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Manufacturing method of large thin-wall special-shaped curved surface component

A special-shaped surface and manufacturing method technology, applied in the field of alloy product processing, can solve the problems of poor part profile accuracy, low production efficiency, uneven deformation, etc., and achieve improved forming precision, low production cost, and reduced profile distortion. Effect

Pending Publication Date: 2022-02-01
SICHUAN AEROSPACE LONG MARCH EQUIP MFG CO LTD
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  • Claims
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Problems solved by technology

[0003] At present, the process method used for the forming of large thin-walled special-shaped curved surface components is blanking→cold spinning→shaping→cold spinning→cutting→solution treatment→aging treatment→machining. The parts produced by this method have poor surface accuracy and deformation. Uneven, and the process is relatively complicated, the production efficiency is not high, and the processing cost is high

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  • Manufacturing method of large thin-wall special-shaped curved surface component
  • Manufacturing method of large thin-wall special-shaped curved surface component
  • Manufacturing method of large thin-wall special-shaped curved surface component

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Embodiment Construction

[0030] The selected material is the rough plate of 2219 aluminum alloy, its size is 3800×3800mm, the wall thickness is 30mm, the outer diameter of the large end of the ellipsoid bottom part is 3500mm, the height is 1200mm, and the wall thickness is 15-30mm.

[0031] This embodiment provides a method for manufacturing a large thin-walled special-shaped curved surface member, including the following steps:

[0032] S1, blanking: use the gantry CNC milling machine to process the 2219 aluminum alloy square rough plate with a size of 3800×3800×30mm into a circular slab with a diameter of φ3700mm and a wall thickness of 30mm, and vacuum absorb the 2219 aluminum alloy through the pressure plate and other tooling and machine tools The square blank plate is fixed on the machine table, and the installation positioning hole 6xφ80mm and the hoisting hole φ40mm located in the center of the plate are processed, and the excess material of the plate is removed by milling to the required size a...

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Abstract

The invention provides a manufacturing method of a large thin-wall special-shaped curved surface component. The large thin-wall special-shaped curved surface component is manufactured by a method of blanking, solution treatment, cold spinning, cutting, aging treatment and machining. Compared with a method of blanking, cold spinning, shape correction, cold spinning, cutting, solution treatment, aging treatment and machining in the prior art, the method has the advantages that: the working procedures are simpler, and the two working procedures of shape correction and secondary cold spinning are omitted, so that a large amount of production cost is reduced, and the production cost is remarkably reduced. Meanwhile, a metal plate blank is subjected to solution treatment before cold spinning, molded surface distortion caused when the cold-spun part is in a complex stress state and then subjected to solution treatment is greatly relieved, and the part forming precision is remarkably improved. The part obtained through the method is obviously improved in grain structure and good in quality, and the service performance and the service life are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of alloy product processing, and in particular relates to a method for manufacturing a large thin-walled special-shaped curved surface component. Background technique [0002] Large-scale thin-walled special-shaped surface components are one of the key core structural components in key fields such as national aerospace, national defense and military industries. They have the characteristics of large size, complex shape, thin wall thickness and high precision, which determine the excellent performance of aviation, aerospace and national defense equipment. and upgrades. Therefore, it is extremely important to master the manufacturing method of large thin-walled special-shaped surface components, and it is of great significance to meet the high-density launch requirements in the current aerospace field and the routine strategic duty of weapons and equipment. [0003] At present, the process method used for the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/16C21D1/18C21D8/00C21D9/00
CPCB21D22/16C21D1/18C21D8/00C21D9/0068
Inventor 马飞胡豪吴津臣余超熊秋萍杜尚军苟强
Owner SICHUAN AEROSPACE LONG MARCH EQUIP MFG CO LTD
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