Method for preparing composite flying plate in laser indirect impact micro-forming

Abstract

The invention discloses a method for preparing a composite flying plate in laser indirect impact micro-forming. K9 glass is selected to serve as a sputtering substrate; titanium is selected to serve as a first sputtering target, aluminum is selected to serve as a second sputtering target, a Ti-Al composite film layer is obtained through magnetron sputtering for twice, and the Ti-Al composite film layer serves as an absorbing/ablation layer of a flying plate driven by lasers; metal foil or non-metal foil is adhered to the Ti-Al composite film layer; pressure is exerted between the flying plate and the Ti-Al composite film layer and the flying plate and the Ti-Al composite film layer are placed in a constant temperature device; the flying plate and the Ti-Al composite film layer are taken out from the constant temperature device so that the composite flying plate can be formed. The composite flying plate prepared through the method is high in laser energy use rate and good in completeness. The flying plate good in completeness can be obtained and forming performance is improved. The composite flying plates with different properties can be obtained through the adjustment of preparing parameters. The method for preparing the composite flying plate in laser indirect impact micro-forming is convenient to use, reliable, simple in technology, high in preparing efficiency, low in preparing cost and capable of being used in large-scale production and application in industry.

Description

technical field [0001] The invention relates to a method for preparing composite flyers in laser indirect impact micro-forming, and belongs to the technical field of advanced laser manufacturing. Background technique [0002] Laser-driven flyer forming technology is a new type of high-pressure and high-strain rate forming technology, that is, the laser-driven flyer loading method replaces the direct laser impact, and the laser energy is converted into the kinetic energy of the flyer. The carrier, after flying for a certain distance, collides with the workpiece material, and high-pressure shock waves are generated on the collision interface to cause ultra-fast plastic deformation of the material in the micro-mold, thereby realizing the precise forming of the workpiece in the micro-mold. [0003] Laser-driven flyer forming technology can realize the micro-forming of complex devices that are difficult or impossible to form by conventional methods. Among them, the quality of th...

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Problems solved by technology

[0005] In view of the problems existing in the laser-driven flyer forming process in the prior art, the forming ability of the laser impact flyer is poor due to the weak bonding force between the flyer and the substrate, low laser energy coupling efficiency, low flyer speed and poor integrity. To solve the problem of low forming quality, a method for preparing composite flyers in laser indirect impact microforming was proposed

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