Method and device based on laser shock multi-point compound forming

A laser shock and composite forming technology, applied in laser welding equipment, forming tools, manufacturing tools, etc., can solve the problems of long preparation cycle, scratches, high design and manufacturing costs, and achieve uniform pressure and smooth workpiece surface.

Inactive Publication Date: 2009-09-02
JIANGSU UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

Its disadvantages are: because there is no blank holder in the forming process of the plate, it is prone to wrinkling, instability, and quality problems of scratches.
It can save half of the mold, but the disadvantage is that th

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  • Method and device based on laser shock multi-point compound forming
  • Method and device based on laser shock multi-point compound forming
  • Method and device based on laser shock multi-point compound forming

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Embodiment Construction

[0025] The details and working conditions of the specific device proposed by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] figure 1As shown, the device includes a laser generator (1), a light guide system, a laser impact head (5), a multi-point mode system (6), and a control system. The laser generator (1) generates a pulsed laser with an energy of 10-100 joules and a duration of 8-80 nanoseconds. The spot mode of the laser beam (3) can be a variety of modes such as fundamental mode and multi-mode. The controller adjusts and controls the laser beam (3) generated by the laser generator (1) to impact on the workpiece (13) by the laser impact head (5) through the light guide system; the light guide system includes a light guide tube (2), Total reflection mirror (4); laser impact head (5) is equipped with a focusing mirror, by adjusting the distance between the impact head and the workpiece, the size of the spot di...

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Abstract

The invention relates to the field of machinery manufacturing, in particular to a method and a device for laser shock multi-point compound forming. The method utilizes shock waves induced by laser as a forming force source, and adopts a discrete multi-point die as a female die or a male die to realize laser shock female die profile modeling or prestress shock forming. The device comprises a laser generator, a light guide system, a laser shocking head, a multi-point die system and a control system, and is provided with a detection feedback system with a displacement measuring device. According to a curved surface shape of a plate and the requirement of a forming rule, laser shock process parameters are optimized, the height of an element group of the multi-point die is adjusted, and the plate is deformed under the combined action of the shock waves and the multi-point die. The method and the device are particularly suitable for precision shock forming of metal plates with large deformation and large area, especially the forming of plates with complicated curved surface shapes.

Description

technical field [0001] The present invention relates to the field of mechanical manufacturing, in particular to a method and device for laser shock multi-point compound forming, which is suitable for precision impact forming of large deformation and large-area complex curved surfaces of sheet metal, and is also suitable for microprocessing of sheet metal Forming is especially suitable for materials that are difficult to form or cannot be formed at all by conventional methods, such as structural steel, magnesium alloys, titanium alloys, composite materials, etc. Background technique [0002] Sheet metal forming, as the main deep processing method before the sheet is directly put into consumption, has occupied a very important position in the entire national economy. For some small-batch, high-quality multi-curvature workpieces, such as aircraft skins, prototype vehicle covers, ship hulls, and pressure vessel shells, the requirements for rapid and economical forming methods ar...

Claims

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Application Information

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IPC IPC(8): B23K26/00B23K26/18B23K26/42B23K26/04B21D26/06B21D37/10B21D37/12B21D37/02B23K26/70
Inventor 杨超君张永康叶镇周建忠鲁金忠
Owner JIANGSU UNIV
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