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Method and device for laser shock forming on the basis of polyurethane rubber film

A polyurethane rubber, laser shock technology, applied in laser welding equipment, welding equipment, metal processing equipment and other directions, can solve the problems of high design and manufacturing costs, inflexible processing, long preparation period, etc., to avoid metal spalling, expand forming Capability and range, the effect of improving the service life

Active Publication Date: 2013-06-12
JIANGSU UNIV
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  • Abstract
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Problems solved by technology

These two forming methods can save half of the mold in terms of laser shock concave imitation. The disadvantage is that the traditional mold is still needed, the design and manufacturing cost of the mold is high, the preparation period is long, and the processing is still not flexible enough, and can only be adapted to a single type. Surface shaping

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  • Method and device for laser shock forming on the basis of polyurethane rubber film
  • Method and device for laser shock forming on the basis of polyurethane rubber film
  • Method and device for laser shock forming on the basis of polyurethane rubber film

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Embodiment Construction

[0035] 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.

[0036] figure 1 As shown, the device includes a laser generator (1), a light guide system, a laser impact head (5), a polyurethane rubber mold 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 th...

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Abstract

The invention relates to a method and a device for laser shock forming on the basis of a polyurethane rubber film. The method is characterized in that shock waves induced by laser are used as a power source for forming; the polyurethane rubber film is used as a concave film for the laser shock forming; and the stress condition of a plate under the action of the shock waves is changed to achieve the shock forming of a complicated curved surface. The device comprises a laser generating device, a light guide system, a laser shock head, a polyurethane rubber film system and a control system and is also provided with a detection feedback system with a displacement measuring device. According to the requirement of the curved surface shape and forming rules of a plate, laser shock process parameters are optimized, the polyurethane rubber of proper hardness and thickness are selected, and the plate is deformed under the associative action of the shock waves and the polyurethane rubber. The device not only can achieve the complicated and precise forming of the plate, but also can carry out the flexible leveling of the plate, and also can be applied to the surface shock strengthening treatment of materials.

Description

technical field [0001] The invention relates to the field of mechanical manufacturing laser forming, in particular to a polyurethane rubber mold-based laser shock forming method and device. Background technique [0002] Sheet metal laser forming technology is an advanced and green flexible precision processing technology that has emerged in recent years. It overcomes the shortcomings of traditional sheet metal forming, such as poor flexibility, large mold costs, and high manufacturing costs, and realizes fast, efficient, flexible stamping and die-free forming of sheet metal, and adapts to the market competition needs of rapid update of modern manufacturing products. Laser shock forming is a new application of laser technology in sheet metal forming. [0003] Laser Shock Forming (Laser Shock Forming, LSF) is a new flexible forming method that uses the mechanical effect of strong laser to realize the cold plastic deformation of sheet metal. When the high power density (GW / cm ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/00
Inventor 杨超君张永康周建忠叶镇冯爱新鲁金忠
Owner JIANGSU UNIV
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