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Three-waveband laser double-focusing-head laser processing system and method

A laser processing, three-band technology, used in laser welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of reduced beam quality, reduced light intensity, complex optical switch structure, etc., to achieve clear imaging and observation, reduce the direction Adjustment requirements, ease of fine adjustment and effect of imaging control

Active Publication Date: 2020-09-01
青岛昆仑天峰航空科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The optical switch structure is relatively complex, and the use of too many mirrors and other devices will cause a decrease in light intensity and beam quality, which will affect the effect of laser processing

Method used

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  • Three-waveband laser double-focusing-head laser processing system and method
  • Three-waveband laser double-focusing-head laser processing system and method
  • Three-waveband laser double-focusing-head laser processing system and method

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Embodiment 1

[0036] Such as figure 1 As shown, a three-band laser double-focus head laser processing system includes a femtosecond laser light source, a first reflector 21, a second reflector 4, a third reflector 4', a fourth reflector 6, and a fifth reflector 12. The first processing department, the second processing department and the lighting and imaging department;

[0037] The femtosecond laser light source is a femtosecond laser that can emit ultraviolet band laser, visible light band laser and infrared band laser;

[0038] The first reflecting mirror 21 transmits light in the visible and infrared bands and totally reflects the light in the ultraviolet band; the second reflecting mirror 4 and the third reflecting mirror 4' fully reflect the light in the ultraviolet band; the fourth reflecting mirror 6, the fifth Reflector 12 transmits light in the ultraviolet band and reflects light in the visible and infrared bands;

[0039]The femtosecond laser light source emits light in the ult...

Embodiment 2

[0066] This embodiment specifically introduces the laser processing method using the device, which uses the device of the present invention to perform laser processing on composite materials.

[0067] The composite material to be processed is a multi-layer material, and the light absorption capabilities of each layer for different wavelengths are different; for example, a composite material with three layers, the composite material includes the first layer, the second layer and the third layer ; The first layer has a high absorption rate of ultraviolet light, which is greater than 50%, but a high reflection rate of infrared light, greater than 70%, and the second layer has a high absorption rate of 50% for visible light, but the absorption rate of infrared light , less than 30%, the third layer has a high absorption rate for infrared light, greater than 60%, but a high reflectance rate for ultraviolet light, which is 75%; using traditional single-wavelength laser processing met...

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Abstract

The invention relates to a three-waveband laser double-focusing-head laser processing system and method. Through three-waveband laser beam splitting processing and double-focusing-head design, one device can be matched with ultraviolet, visible and infrared three-waveband laser transmission and processing at the same time; a composite light beam is used for illumination, visible light and infraredlight are used for illumination during ultraviolet light processing, ultraviolet light is used for illumination during visible light and infrared light processing, light captured by a CCD only comprises illumination light and does not comprise processing light at the moment, and a processing position can be imaged and observed more clearly; by means of a plurality of precise two-dimensional adjusting frames and a translation support, precise adjustment and imaging control of the transmission direction of the laser beam are facilitated, the requirement for adjusting the direction of the incident laser beam is lowered, and the processing and imaging requirements of various laser light sources and various specifications of focusing mirrors or field lenses are met.

Description

technical field [0001] The invention belongs to the field of laser processing, and relates to a beam transmission and processing method, in particular to a system and method for simultaneously supporting ultraviolet, visible and infrared three-band laser beam transmission and processing. Background technique [0002] As a new manufacturing technology, laser processing technology has been more and more widely used in the industry, and has occupied an important manufacturing position in the fields of automobiles, electronics, aviation, and aerospace. Among them, the laser transmission control is one of the important components of the laser processing system, which mainly includes direction control, motion control and focus control. [0003] At present, although the dielectric film of optical components in laser transmission control can realize the control of reflection, movement, and focusing of single-wavelength, dual-wavelength, and certain-band lasers, it cannot cover wider...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/03B23K26/06B23K26/067B23K26/70
CPCB23K26/0643B23K26/702B23K26/067B23K26/032
Inventor 韩坤李伟林王雨峰董润徐梓潇杨敬儒
Owner 青岛昆仑天峰航空科技有限公司
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