Ultrasonic-assisted flexible rolling forming method and device for micro-groove surface structure

An ultrasonic-assisted and surface-structured technology, applied in the field of metal plastic forming, can solve problems such as the difficulty of large-area machining of micro-grooves, and achieve the effects of large deformation resistance, reduced deformation resistance, and promotion of material flow.

Active Publication Date: 2020-02-14
WUHAN TEXTILE UNIV +1
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Problems solved by technology

[0005] In view of the above defects or improvement needs of the prior art, the purpose of the present invention is to provide an ultrasonic-assisted flexible rolling forming method and device for micro-grooved surface structures, wherein through the se...

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  • Ultrasonic-assisted flexible rolling forming method and device for micro-groove surface structure

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Embodiment Construction

[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0033] refer to figure 1, the ultrasonic-assisted flexible rolling forming method of metal surface microgroove in the present invention, comprises the following steps:

[0034] 1) Use the clamping sub-device 1 to fix the sheet metal part 2;

[0035] 2) The embossing roller 3 is installed on the output end of the ultrasonic vibration system 4, the ultrasonic vibration system 4 can be installed ...

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Abstract

The invention belongs to the field of metal plastic forming, and discloses an ultrasonic-assisted flexible rolling forming method and device for a micro-groove surface structure. The device comprisesclamping sub-devices (1), an impression roller (3), a support roller (6) and an ultrasonic vibration system (4). The impression roller (3) and the support roller (6) can synchronously roll on the surface of a metal piece to be treated along a preset track, under the assistance of ultrasonic vibration, the impression roller and the support roller are cooperatively used to carry out extrusion effecton the metal piece to be treated, and then a micro groove is formed in the surface of the metal piece to be treated, wherein the ultrasonic vibration can soften the metal piece to be treated, and theauxiliary effect is achieved. According to the ultrasonic-assisted flexible rolling forming method, through improvement of the arrangement of the components in the device and the working relationshipof mutual cooperation between the components and the like, rolling extrusion on the surface of the metal plate piece is carried out through the cooperation of the impression roller and the support roller, so that the material on the surface of the metal plate piece is subjected to continuous elastic plastic deformation, and meanwhile, the deformation resistance of the material is reduced by utilizing the ultrasonic softening effect.

Description

technical field [0001] The invention belongs to the field of metal plastic forming, and more specifically relates to a method and device for ultrasonically assisted flexible rolling forming of micro-grooved surface structures. The method and device are especially suitable for large-sized curved metal sheet surfaces such as aircraft skin A micro-groove structure with a drag-reducing function is formed. Background technique [0002] As a major strategic equipment for safeguarding national security, safeguarding national interests and promoting national economic development, large aircraft has become the focus of the development of high-end equipment manufacturing industries in world powers. Drag reduction is one of the key scientific and technological issues faced by the development of large aircraft. The wall frictional resistance encountered by large aircraft during cruising accounts for about 40% to 50% of the total resistance. If the frictional resistance is reduced by 10...

Claims

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Application Information

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IPC IPC(8): B21D13/04B21D43/00B06B3/00B25J11/00
CPCB06B3/00B06B2201/70B21D13/04B21D43/003B25J11/005
Inventor 李巧敏张茂柳玉起李红军江维陈伟
Owner WUHAN TEXTILE UNIV
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