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Line width adjustable laser cutting method and laser cutting device

A technology of laser cutting and laser beam, which is applied in the direction of laser welding equipment, metal processing equipment, welding equipment, etc., can solve the problems of metal black spots residue and low cutting efficiency, so as to prevent the risk of short circuit, increase the width of laser cutting, avoid The effect of metal black spots remaining

Inactive Publication Date: 2019-05-28
HANS LASER TECH IND GRP CO LTD
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  • Claims
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a laser cutting method and a laser cutting device with adjustable line width, aiming to solve the problem that the existing laser cutting is easy to have metal black spots on the cutting edge and the cutting efficiency is low

Method used

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  • Line width adjustable laser cutting method and laser cutting device
  • Line width adjustable laser cutting method and laser cutting device
  • Line width adjustable laser cutting method and laser cutting device

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Embodiment Construction

[0032] Now in conjunction with the accompanying drawings, the preferred embodiments of the present invention will be described in detail.

[0033] Such as image 3 As shown, the present invention provides a laser cutting method with adjustable line width, which is used to cut the short-circuit ring of the terminal of the liquid crystal panel. The method includes the following steps:

[0034] Step S10: performing beam shaping on the laser beam, and shaping the laser beam into a flat-hat beam. Wherein, the flat-hat beam is a flat-hat beam with uniform energy. Such as Figure 4 It is the energy density distribution diagram of the flat-hat beam. The flat-hat beam has a uniform energy distribution to ensure that the effect is consistent in the entire laser action area, and the middle and both sides of the cutting line can be removed cleanly, avoiding the edge of the cutting short-circuit ring. Metallic black dots remain to prevent the risk of short circuits.

[0035] Step S20: ...

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Abstract

The invention relates to a line width adjustable laser cutting method and laser cutting device used for cutting a terminal short circuit ring. The line width adjustable laser cutting method comprisesthe following steps of shaping a laser beam into a flat-top beam; adjusting the spot size of the flat-top beam; and reducing and ejecting the spot of the adjusted flat-top beam according to a preset ratio to cut the terminal short circuit ring. By shaping the laser beam into the flat-top beam, the flat-top beam has uniform energy distribution so that consistent acting effect of the whole laser acting area can be guaranteed, the middle part and the two sides of a cutting way can be both completely removed, metal black point residue at the cutting edge is avoided, and the short circuit risk is prevented. In addition, when small-dimension cutting is converted into large-dimension cutting, the spot is enlarged to increase the laser cutting width only by adjusting the spot size of the flat-topbeam; the cutting of the large-size terminal short circuit ring is finished in one time, accumulated multi-cutting mode does not need to be adopted, and the cutting processing efficiency is greatly enhanced.

Description

technical field [0001] The invention relates to the technical field of laser cutting, in particular to a laser cutting method and a laser cutting device with adjustable line width. Background technique [0002] When producing large-size LCD panels, metal lines will be reserved at designated positions on the edge of the product. Each line will connect pixels, and then connect each line through a metal line. The metal line is called a terminal short circuit ring. In this way, as long as the short-circuit ring of the terminal is energized, the pixels of the entire screen can be lighted up. After lighting up, the screen can be checked to find out the problematic pixels and repair them. After the pixel point repair is completed, in order to prevent the short-circuit ring from being misconducted due to special reasons and causing visual problems after being assembled into a product later, it is necessary to cut off the short-circuit ring of the terminal before assembling the produ...

Claims

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Application Information

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IPC IPC(8): B23K26/38B23K26/064B23K26/073
Inventor 朱建卢建刚王祥周辉高云峰
Owner HANS LASER TECH IND GRP CO LTD
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