A knife blade vibrating at an ultrasonic frequency can easily slice through the material to be cut quickly and precisely without leaving behind any residue in the form of particles.
Ultrasound has been used for years for cutting finished products. The swinging, cold cutting sonotrode reduces resistance in the cutting process and even cleans itself off residue when used with baked goods, energy bars, cheese, pizza, etc.
The result: smooth, reproducible cutting surfaces without deformation and thermal damage of the product.