A laser shock metal sheet forming device and method thereof

Abstract

The invention discloses a laser shock metal sheet forming device and a method thereof. The device comprises a laser emission system, a workpiece forming system and a control system. The laser controlemission system is formed by a laser controller, a pulse laser, a retroreflector, a collecting lens, a collecting lens support and a base; the workpiece forming system is formed by a pressing mechanism, a Y-shaped pressing handle, a spring I, a long bolt, a forming mechanism, a three-coordinate moving platform and the like; and the control system is formed by a computer, a laser controller, a three-coordinate moving platform controller, a real-time temperature controller, a heating device, a temperature measuring device and the like. According to the laser shock metal sheet forming device andthe method thereof provided by the invention, pulse laser is adopted as an energy source, and micro-distortion of a single-layer and multi-layer metal sheet is realized through a heating assisted forming system, so that a forming performance is improved.

Description

technical field [0001] The invention belongs to the field of laser processing and manufacturing and metal plate forming, and in particular relates to a laser shock metal sheet forming device and a method thereof. Background technique [0002] With the continuous development of society, the level of scientific and technological production has been greatly improved. The emergence of advanced manufacturing, especially precision manufacturing, has enabled more and more micro-parts to be processed and manufactured, which are widely used in aerospace, biomedical and other aspects. . In the process of precision manufacturing development, in order to further improve the forming performance of micro-forming, heating-assisted forming was proposed and widely used. As an auxiliary forming method, heat can increase the plasticity of the material by increasing the forming temperature, thereby improving the micro-forming ability of the workpiece. In the heating-assisted micro-bending of ...

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Problems solved by technology

[0003] The existing heating-assisted forming devices are mainly electromagnetic heating micro-forming devices, and this heating device is not in contact with the workpiece, so it is only suitable for magnetic workpieces, which has great limitations

However, other contact-type heating-assisted forming devices mostly adopt open-loop temperature control, which cannot monitor and control the temperature of the device well in real time, and cannot meet the needs of micro-forming with high temperature accuracy requirements.

The Chinese patent application number CN201310298622.2 discloses a microplastic forming device and method under high strain rate. Due to the structural limitation of the forming device, only one size of micro-mold can exist on each mold, and the replacement When taking samples, the blank holder and flange should be removed, and the operation is more complicated

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