Aluminum Foil Test – Foil Perforation Mechanism

Posted on March 9, 2020 by John Fuchs

Until recently, I was only able to theorize about the mechanism involved in the perforation of aluminum foil by ultrasonic cavitation. I no longer have to theorize! My theory had always been that perforation of aluminum foil was due to the repeated flexing of aluminum foil as cavitation implosions occurring on opposite sides of the foil …

Ultrasonics – Near Field and BEYOND!

Posted on January 13, 2020January 9, 2020 by John Fuchs

The term “near field” is not new to ultrasonic cleaning. In general, it refers to cleaning parts in near proximity to the ultrasound source. It is well known that increasing ultrasonic power density can produce improved cleaning results in many cases. Increasing power density can be accomplished by reducing the size of the cleaning vessel to …