Ultrasonic horn

[1] Ultrasonic processing of liquids relies of intense shear forces and extreme local conditions (temperatures up to 5000 K and pressures up to 1000 atm) generated by acoustic cavitation.

Ultrasonic horns may be classified by the following main features: 1) Longitudinal cross-section shape – stepped, exponential, conical, catenoidal, etc.

[7] Barbell horns are able to amplify ultrasonic amplitudes while retaining large output diameters and radiating areas.

It is, therefore, possible to directly reproduce laboratory optimization studies in a commercial production environment by switching from Converging to Barbell horns while maintaining high ultrasonic amplitudes.

Ultrasonic welding utilizes high frequency, vertical motion to produce heat and the flow of thermoplastic material at the interface of mated parts.

Pressure is maintained after the delivery of energy is stopped to allow re-solidification of interwoven plastic at the joint, securing the parts with a homogeneous or mechanical bond.

Conventional Converging Ultrasonic Horn, produced by Industrial Sonomechanics, LLC [ 1 ]
Full-wave Barbell Ultrasonic Horn, produced by Industrial Sonomechanics, LLC [ 1 ]
A horn in an ultrasonic drill from 1955. The horn, the long tapering steel rod at center, couples the ultrasonic transducer in the housing at top to the tool which presses against the workpiece on the worktable at bottom.