Laser beam splitting and processing device

A processing device and laser beam technology, applied in laser welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of slow processing speed and low processing efficiency, and achieve improved processing efficiency, rich spatial trajectory modulation, and fast focus switching Effect of High Precision Focus Switching Capability

Active Publication Date: 2014-03-26
张立国
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  • Abstract
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a laser beam splitting processing device, which solves the technical problems of low processing efficiency and slow processing speed of the laser processing device in the prior art

Method used

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  • Laser beam splitting and processing device

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Embodiment 1

[0049] figure 1 It is a schematic diagram of the structure of a laser beam splitting processing device of the present invention when it is applied in the drilling of alumina ceramics, as figure 1 As shown: including a beam control module, a laser beam splitting module and a laser focus switching module, the workpiece 89 to be processed is a 1000 micron thick aluminum oxide ceramic sheet, which is fixedly installed on a moving platform.

[0050] The beam control module of this embodiment includes a laser beam expansion unit (not shown in the figure) and a beam dynamic control unit.

[0051] The incident beam 79 of this embodiment is a collimated beam with a diameter of 10 millimeters, and its relevant parameters are as follows: laser wavelength 532 nanometers, beam quality factor less than 1.2, spot circularity greater than 90%, average power 35 watts, single-mode Gaussian laser (transverse field strength is Gaussian distribution), pulse repetition frequency 50 kHz.

[0052] ...

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Abstract

The invention relates to the field of laser processing, in particular to a laser beam splitting and processing device. The laser beam splitting and processing device comprises a laser focusing and switching module, a laser splitting module and a beam steering module. The laser splitting module can process a single laser into multiple lasers, the laser focusing and switching module can focus lasers and switch spatial space of laser focal points at a high speed, and through combination of the laser splitting module and the laser focusing and switching module, array laser processing with high speed, efficiency and accuracy is realized; through the beam steering module, control content of beam movement trajectories during laser processing is further enriched, and requirements on various processing environments and processing conditions can be met. Compared with conventional laser processing devices, the laser beam splitting and processing device has the advantages that processing accuracy, processing efficiency, processing quality and the like are greatly improved, and the laser beam splitting and processing device adapts to the development trend of modern solid-sate lasers and can be widely applied to the field of laser processing.

Description

technical field [0001] The invention relates to the field of laser processing, in particular to a laser beam splitting processing device. Background technique [0002] In the prior art, laser processing devices equipped with galvanometer scanning and focusing all use single-beam laser processing, and the processing efficiency is not high enough to meet industrial needs; while devices using multi-beam laser processing are all based on static focusing methods, there are The problem that the laser focus switching position is slow. However, the current solid-state lasers, especially fiber lasers, are developing towards high pulse repetition frequency and high-power ultra-short pulse width. Due to the advantages of high pulse repetition frequency and high-power ultra-short pulse width of lasers, it is necessary to find a more efficient laser processing method to match the current level of laser development. Contents of the invention [0003] The technical problem to be solved...

Claims

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Application Information

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IPC IPC(8): B23K26/046B23K26/067
CPCB23K26/046B23K26/0676
Inventor 张立国
Owner 张立国
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