Laser assisted machining system and workpiece preheating device thereof

A processing system and laser-assisted technology, applied in optical components, optics, instruments, etc., can solve problems affecting workpiece processing efficiency and quality, material variation, etc., and achieve the effect of reducing equipment construction costs and improving processing efficiency.

Inactive Publication Date: 2018-07-03
METAL INDS RES & DEV CENT
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  • Abstract
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Problems solved by technology

[0002] Please refer to Taiwan's invention patent I508810 "Laser-assisted processing device", which directly uses laser to preheat and soften the workpiece before cutting. However, the laser with Gaussian energy distribution will cause the workpiece to generate a temperature field distribution that is hot and cold. Therefore, the material of the workpiece is prone to variation due to excessive temperature differences, which affects the processing efficiency and quality of the workpiece

Method used

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  • Laser assisted machining system and workpiece preheating device thereof
  • Laser assisted machining system and workpiece preheating device thereof
  • Laser assisted machining system and workpiece preheating device thereof

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Embodiment Construction

[0033] see figure 1 , a laser-assisted processing system 100 of the present invention includes a processing tool 110 and a workpiece preheating device 120, the processing tool 110 has a tool 111, and the tool 111 is used for processing (such as turning or milling) in the area 210 to be processed of the workpiece 200 processing), the workpiece preheating device 120 has a laser source 121 and a modulating mirror group 122, the laser source 121 is used to emit a laser beam L to the modulating mirror group 122, and the laser beam L passes through the modulating mirror group 122 ( That is, the modulating mirror group 122 is arranged on the optical path of the laser beam L), and the modulating mirror group 122 is used for modulating the laser light shape S of the laser beam L, so as to focus and form the laser spot S' on the workpiece 200 This area to be processed 210 (see Figure 2a to Figure 2d and Figure 3a to Figure 3d ), the laser spot S' is used to preheat and soften the ar...

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Abstract

The invention relates to a laser assisted machining system. The laser assisted machining system includes a machining tool and a workpiece preheating device; the machining tool is used for machining aworkpiece; the workpiece preheating device is provided with a laser source and a modulation mirror group; the laser source emits a laser beam to the modulation mirror group; the modulation mirror group modulates the laser beam to focus the laser beam, so that a laser spot can be formed on the workpiece, and therefore, a to-be-machined area of the workpiece can be preheated and softened; and the modulation mirror group is used for modulating the shape and/or direction of the laser spot, so that the energy density of the laser spot can be uniformly distributed on the to-be-machined area, and therefore, poor processing efficiency and workpiece material variation which are brought about by the excessive temperature difference of the to-be-machined area can be avoided.

Description

technical field [0001] The present invention relates to a laser-aided processing system and its workpiece preheating device, in particular to a laser-assisted processing system and its workpiece preheating device for uniform distribution of laser energy by modulating the shape and / or direction of the spot. Background technique [0002] Please refer to China Taiwan invention patent I508810 "Laser-assisted processing device", which directly uses laser to preheat and soften the workpiece before cutting. However, the laser with Gaussian energy distribution will cause the workpiece to generate a temperature field distribution that is hot and cold. Therefore, the material of the workpiece is prone to variation due to an excessive temperature difference, which affects the processing efficiency and quality of the workpiece. Contents of the invention [0003] The main purpose of the present invention is to provide a laser-assisted processing system, which uses a mirror group to mod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/09
CPCG02B27/09G02B27/0955
Inventor 吕育廷叶昭永林秋丰吕英诚
Owner METAL INDS RES & DEV CENT
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