Laser cutting method of toughened glass

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...

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