In other words, in some cases, it is difficult to cut thick soda-lime glass (float glass) by laser at one time without using special methods.
Research on CO2 Laser Cutting Colored Glass (with photos)
Source: China Laser Network Author: Zgshan translation
When cutting glass with CO2 laser, the optimum thickness of glass substrate is 0.00 12-0.0236 inch. If no special method is adopted,
In other words, in some cases, it is difficult to cut thick soda-lime glass (float glass) by laser at one time without using special methods.
In addition to conventional glass, the colored glass samples shown in the photo are all cut by sealed CO2 laser. Like standard float glass,
Linear cutting of colored glass is easy, which can be achieved by scribing and breaking. The difficulty lies in cutting irregular shapes.
The traditional method is to drill holes bit by bit along the edge of irregular shape to form a curved shape, and then polish it with a diamond grinding wheel.
Or saw with a diamond saw blade, but these methods are time-consuming and laborious.
South Korea's Esall Technology Company introduced LCD laser glass cutting equipment for the first time in the world.
China LCD Information Network: September 0, 2004110: 37:18.
South Korea's Esseltech said that LCD laser glass cutting equipment is the first research and development in the world. This product abandons the current TFT.
In the process of LCD production, the mechanical cutting method of diamond grinding wheel is used to cut the panel, and the newly developed laser has zero loss.
Cutting mode Non-contact cutting mode.
This equipment is a kind of laser cutting equipment which can realize high-speed and clean cutting of FPD glass such as LCD, PDP and organic light-emitting diode in a non-contact way.
Multicolor patterns were successfully formed on colorless transparent glass by laser engraving.
Release date: July 6, 2004
Based on the innovative research of laser-induced spatial selective three-dimensional microstructure, the International Cooperation Laboratory of Photonics Technology of Shanghai Institute of Optics and Mechanics chose specially doped colorless transparent glass as the substrate, and successfully carved three-dimensional multi-color patterns in the glass according to the design requirements by using the method of pulsed laser induction. At present, the popular glass laser engraving on the market is actually a pattern with focused explosion points, which cannot be colored. The success of this experiment laid a key technical foundation for realizing the technical transformation from colorless internal carving to full-color internal carving.
The above-mentioned technical development of the laboratory is developed on the basis of the original basic research. In the past two years, the research team led by Dr. Qiu, the head of the Hundred Talents Program of Chinese Academy of Sciences and the head of the National Outstanding Youth Fund, selected the research frontier of laser-induced three-dimensional light functional microstructure materials to conduct systematic and in-depth exploration and research, and achieved a number of original achievements, which were not only published in international authoritative journals, but also published in magazines such as Nature and Chem.
English
News and other magazines have made special presentations, which have been widely used by many domestic and foreign media (such as Xinhuanet, Science and Technology China, German Chemical Network and Canadian Discovery).
"British Materials Today" and "France L"
Expansion, etc. ) made a detailed report. The original technology in this field has applied for 4 invention patents in China.
The purpose of original innovation lies in application. One of the most direct practical applications of the above innovative technology is the internal engraving of color patterns. The laboratory has done a lot of research on the parameter optimization of glass matrix, laser and subsequent treatment, and realized the color selection and chromaticity control of color patterns. At present, patterns of several colors can be carved on a specially doped colorless transparent glass. The ultimate goal of researchers is to carve full-color patterns with lasers and reduce costs. To this end, they are continuing their efforts.
The formation of color internal carving comes from the change of microstructure of materials in the laser action zone. When the linearity of this microstructure reaches the microscopic scale required for optoelectronic integration, functional elements with various optoelectronic functions can be formed, and their applications can be extended to the fields of microelectronics and photonics. This is another application goal pursued by researchers.