Sheet metal forming method and device based on laser shock wave and vibration technology

A metal sheet and shock wave technology, applied in sheet forming, based on the field of half-mold forming sheet, can solve the problems of low precision and large springback, and achieve the effect of improving forming efficiency, increasing plastic deformation and small space

Active Publication Date: 2019-03-05
ANHUI UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of low precision caused by the large amount of rebound of light alloy plates after shock forming at room temperature, and to provide a metal plate forming method and device based on laser shock wave and vibration technology. The present invention is Half-mold high-precision metal sheet forming method and device powered by pulse pressure induced by laser shock wave

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  • Sheet metal forming method and device based on laser shock wave and vibration technology

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Embodiment Construction

[0030] The method and device of the present invention will be further described below by forming a 0.2 mm thick 2024 aviation aluminum alloy plate in conjunction with the accompanying drawings.

[0031] The specific steps of the sheet metal forming method based on laser shock wave and vibration technology provided by the present invention are as follows:

[0032] (1) The metal plate 10 is a 0.2mm thick 2024 aviation aluminum alloy plate, wipe the upper surface of the metal plate 10 with acetone, and after drying, coat a layer of black paint with a thickness of 0.10mm on the metal plate 10 upper surface As an energy absorbing layer 9 for laser light.

[0033] (2) The O-type second sealing ring 25 with cross-sectional diameter φ 3.5mm is installed in the annular sealing groove of the mold 11 whose groove depth is 3.2mm, and the metal plate 10 coated with the energy absorbing layer 9 on the upper surface It is fixed on the mold 11 by the binder plate 7 with the middle hole.

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Abstract

The invention discloses a metal plate forming method and device based on the laser shock wave and vibration technology, and belongs to the technical field of mechanical part fast manufacturing. According to the method and device, a single pulse laser is adopted for induce shock waves underwater to load a metal plate many times; resilience and vibration in the plate forming process are controlled through the one-way exhaust performance of a one-way valve; a vibration method is adopted for weakening resistance of plastic deformation of the metal plate in the forming process; plastic flowing and forming of the metal plate are accelerated; resilience is further reduced; and therefore the metal plate and a molded surface of a mold are attached precisely, and a high-precision formed part is obtained. Adopted equipment is simple, operation is convenient, the induced shock waves are high in pressure and can be utilized many times, and the formed part is small in elastic recovery, large in plastic deformation and high in forming precision.

Description

Technical field: [0001] The invention belongs to the technical field of rapid manufacturing of mechanical parts, and relates to a method and device for forming thin plates based on half molds, in particular to a method and device for forming metal sheets based on laser shock wave and vibration technology, and the invention is especially suitable for difficult forming at room temperature And sheet forming of high resilience material. Background technique: [0002] Lightweight alloy sheets such as aluminum alloys, magnesium alloys, and titanium alloys are widely used in industries such as aerospace, automotive panels, microelectronics, and instruments because of their high strength and light weight. occupies an important position. Stamping forming is one of the most commonly used processing methods for plastic forming of thin plates. The hydraulic press is used to apply pressure to the metal sheet to make it produce the same plastic deformation as the cavity, so as to obtain ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D26/06B21D26/00
CPCB21D26/00B21D26/06
Inventor 张兴权纪啸天张义伟陈彬杨浩童靳于尹元德纪看看李胜祗
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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