1. Laser drilling: Laser drilling uses high energy generated by ultra-fine laser beam focusing for processing. The fineness of laser micropore aperture can reach 5um.
2. Ultrasonic punching machine: Ultrasonic punching machine is a kind of metal processing equipment that uses ultrasonic waves to generate * * * vibration inside objects and produce high-frequency oscillation. Because the frequency of ultrasonic oscillation is as high as 20 kHz, the amplitude is very small, generally in micron level, so it has high working efficiency, high precision and little influence on materials.