What is the difference between aluminum film laser etching and laser marking?

Marking or etching on a film is done by irradiating a high-energy laser beam onto the surface of the film to form patterns, lines, words, barcodes and other information. So are laser marking machines and etching machines the same equipment?

The principle of the laser marking machine is the same as that of the laser etching machine, which can be understood as an upgraded version of the laser marking machine. Both devices can choose different lasers according to the characteristics of the processed materials, so what is the difference between the two devices?

The laser etcher for etching conductive metal films is developed for touch screens, optoelectronics, military, scientific research and other fields. Its function is to remove the conductive metal on the surface of the thin film material to form a conductive circuit, such as ITO laser etching, silver award laser etching, etc.

The present invention processes the surface marking patterns, texts, QR codes and other information of the thin film material, peels off the surface of the material several microns thick into a pattern different from the color of the substrate, thereby forming a chemical or physical reaction. For example, QR code marking.

Based on the difference of laser marking machine, the working principle of laser etcher is also different. Its working principle mainly includes optical path, software, visual recognition, processing width difference caused by linear motor, dust extraction and adsorption function, etc.

Due to the different optical path structures in laser etching machines, the optical path part is more complicated and needs to be optimized through methods such as reflective lenses. There are differences in the direct light emission mode between the galvanometer lens and the laser marking machine.

The software part of the laser etching machine is a specially developed system that integrates vision, motor, touch and other functions, mainly for the processing of circuit graphics. Laser is a marking software that only has processing control functions and no other control functions. Of course, additional functions are also written, which requires special customized secondary development.

The visual recognition of some laser etching machines has specially added a camera positioning function to ensure processing accuracy. And the marking machine usually does not have this function. Of course, with the continuous improvement of customer demand, some laser marking equipment has now appeared on the market.

In order to increase the processing format and increase the movement speed while ensuring processing accuracy, a linear motor is used, but the laser marking machine does not have this function. Similarly, as the market's requirements for processing increase, Laisei Laser has also developed a large-format laser marking machine controlled by a screw rod, with an effective processing format of up to 600*600mm.

Other components include a laser etcher to ensure the flatness during the etching process, as well as dust after evaporation. Moreover, the marking machine does not have this function, at most a set of marking machines is added outside. The system also uses a laser etcher as a marble stabilization platform to ensure the stability of the entire device when the linear motor is running.

The laser etcher is a comprehensive optomechanical and electrical integration equipment, and the laser marking machine is a simple processing platform. At present, Laisei Laser has developed a laser with a format of 600*600mm, and friends are welcome to negotiate.