METHOD OF FAST LASER SCRIBING.

摘要

A method of fast laser scribing includes performing laser scribing on upper and lower surfaces of grain oriented silicon steel band simultaneously by using laser scribing equipment. The scribing lines on upper and lower surfaces of the steel band are arranged in an equidistant and staggered fashion. The distance between two neighboring scribing lines on a single surface of the steel band is 6-12mm. Laser power is 1000-3000W. Scanning speed is 100-400m/min. The method can increase machining speed and the improving rate of iron loss for the final products.