New applications for laser processing of glass surfaces

The beauty of glass allows the body to carry more colours and has the advantages of warmth and comfort in the hand, so glass-bodied mobile phones are very popular among the public; however, the glass body is easy to show dirt. At present, we can make the touch area between the glass body and human hands smaller by frosting the glass surface, and the glass surface changes from mirror to frosted surface, so that the glass surface becomes diffuse reflection, so as to weaken the effect of dirty glass on the appearance. The glass furring or AG effect not only improves the visual effect of the glass body, but also the user's hand experience is better.

Traditional glass surface furring techniques include sandblasting/grinding furring and chemical etching furring. Glass has a high chemical stability, and chemical etching burring chemical reagents used to verify the chemical corrosiveness, the environment, equipment and operators of the hazards are relatively large; sandblasting / sandblasting burring is to reduce the production yield, slow down the efficiency of the process control is harsh, and there will be a certain degree of pollution to the environment. The use of ultra-fast laser glass surface burring treatment can effectively solve the pain points of the traditional processing process, with fast and efficient, non-polluting, environmentally friendly, low loss characteristics, can promote the technical innovation of glass processing technology, to achieve a certain economic value.

Due to the hard and brittle nature of glass, improper control of laser energy can easily lead to the expansion of glass microcracks, heat cracking or broken pieces. In order to pursue different haze, transmittance, roughness and glass strength, it is necessary to select and adjust the appropriate laser process parameters.

The equipment adopts ultra-fast laser with high-speed scanning equipment, which greatly improves the processing efficiency. With the high-precision scanning control system, it solves the problems of large-format furring processing: uneven scanning spacing, uneven work caused by uneven furring. Can achieve large format, high efficiency, high quality ultra-fast laser grossing process.