Composite metal sheet micro-array functional structural member and forming method and device thereof

Abstract

The invention provides a composite metal sheet micro-array functional structural member and a forming method and device thereof. The technical problem that the forming capacity of a metal sheet under the mesoscale is poor is solved. The composite metal sheet micro-array functional structural member is provided with a low-strength metal sheet layer and a high-strength metal sheet layer which are stacked and connected from top to bottom. At least one layer is face-centered cubic metal. The low-strength metal sheet layer is a low-strength and large-thickness metal substrate, and the high-strength metal sheet layer is a high-strength and small-thickness metal substrate. A plurality of downward protrusions are arranged on the lower surface of the high-strength metal sheet layer and distributed in an array structure, a plurality of grooves are formed in the upper surface of the high-strength metal sheet layer, the grooves correspond to the protrusions one by one in the vertical direction, and the lower surface of the low-strength metal sheet layer is embedded in the grooves. The invention further discloses the forming method and the forming device of the composite metal sheet micro-array functional structural member, and the forming method and the forming device can be widely applied to the field of metal sheet forming.

Description

technical field [0001] The application belongs to the field of thin metal plate forming, and in particular relates to a composite metal thin plate micro-array functional structural part, a forming method and a device thereof. Background technique [0002] With the rapid development of modern industries such as precision machinery and electronics, people's requirements for products in production and life are becoming increasingly miniaturized, refined, and integrated; especially in electronic communications, precision instruments, biomedical, fine chemicals, fuel cells, etc. In the field of thin plate products with micro-featured structures, such as fuel cell plates, micro-radiators, micro-reactors, etc., are widely used, and therefore higher requirements are put forward for their manufacturing processes. [0003] At present, when the characteristic dimension of the thickness of the metal sheet is smaller than a certain level, its mechanical properties will be different from ...

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Problems solved by technology

[0003] At present, when the characteristic dimension of the thickness of the metal sheet is smaller than a certain level, its mechanical properties will be different from the macroscopic conditions, and the forming ability of the metal sheet at the mesoscopic scale is weaker than that of the macroscopic scale, and high-strength metals are difficult to form due to their high strength. ; and low-strength metals cannot meet the use standard due to their low strength.

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