Laser cutting method of toughened glass

A tempered glass, laser cutting technology, applied in glass cutting devices, glass manufacturing equipment, laser welding equipment and other directions, can solve the problems affecting processing efficiency, the quality and accuracy of processing cannot be satisfied, etc., to improve production efficiency, cutting surface is smooth and clean Beautiful, high-precision cutting effect

Inactive Publication Date: 2018-11-23
江苏金琥珀光学科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The quality and precision of these methods are far from meeting some special needs in the project, and the glass must be polished after cutting, which seriously affects the processing efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A laser cutting method for tempered glass, comprising the steps of:

[0018] Step 1. Arrange the laser cutting beam assisted by bilateral cooling jets at the starting point of the tempered glass to be cut;

[0019] The laser cutting beam in the step is incident on the tempered glass surface along the normal direction of the tempered glass surface or at a certain angle with the normal, and is focused on the tempered glass surface or has a certain amount of defocus, that is, a laser spot is formed on the tempered glass surface; Direction Set two active forced cooling strip cooling jets behind both sides of the laser cutting beam, that is, form a laser spot for forced cooling by bilateral cooling jets.

[0020] The distance between the front end of the strip-shaped cooling jet and the geometric center of the laser spot is required to be between 0.5 and 15mm; in the direction perpendicular to the cutting direction, the distance between the central axis of the strip-shaped c...

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Abstract

The invention relates to a laser cutting method of toughened glass. The laser cutting method comprises the following steps: step 1, distributing a bilateral cooling jet flow assisted laser cutting light beam at a position of a starting point to be cut of the toughened glass; step 2, enabling the laser beam to pass through first glass and focusing on the upper surface of second glass, and canning;cutting a first groove on the upper surface of the second glass; step 3, focusing the laser beam on the upper surface of the first glass and scanning along a track of the first groove; cutting a second groove on the upper surface of the first glass; step 4, applying pressure along the first groove and the second groove from bottom to top, and carrying out shredding; or applying the pressure alongthe second groove and the first groove from top to bottom, and carrying out the shredding. According to the laser cutting method of the toughened glass, a bilateral cooling jet flow forced cooling method is utilized and pulling forces at two sides are formed at an original irradiation device of a slotting center, so that the toughened glass is cut according to a cutting track and the technical difficulty that current toughened glass cannot be cut is overcome.

Description

technical field [0001] The invention relates to a laser cutting method for tempered glass, belonging to the technical field of glass cutting. Background technique [0002] The processing of glass materials occupies an increasingly important position in industrial processing. Traditional glass processing uses mechanical and contact methods, such as glass cutting with diamonds and metal pulleys. The quality and precision of these methods of processing are far from meeting some special needs in the project, and the glass must be polished after cutting, which seriously affects the processing efficiency. Due to the advantages of high energy density and non-contact of laser, people try to use laser to process brittle materials such as glass and ceramics, and carry out theoretical and experimental research on laser cutting. Contents of the invention [0003] The object of the present invention is to propose a laser cutting method for tempered glass aiming at the defects of the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/364B23K26/402C03B33/033C03B33/03C03B33/10
CPCB23K26/364B23K26/402C03B33/03C03B33/033C03B33/102
Inventor 贡浩飞潘华平
Owner 江苏金琥珀光学科技股份有限公司
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