Patent ID: 8958270
Filing Date: 2015-02-17
Classification: B06B,B23K,Y10T

Abstract:
1. An ultrasonic horn for a high power actuator, comprising: a monolithic pre-stress portion constructed from a first material, said monolithic pre-stress portion having a first interior surface and a second interior surface defined therein, said first interior surface and said second interior surface configured to provide a pre-stress cavity for a high power actuator material, said specified pre-stress is directed along a first axis, said first interior surface and said second interior surface monolithically connected by at least one flexure structure having a curved shape and configured to apply a specified pre-stress value to an actuator material inserted in said pre-stress cavity, said at least one flexure structure is configured to apply a specified pre-stress having a pre-stress value that varies less than one part in a hundred as a temperature varies over 100 degrees Celsius to an actuator material inserted in said pre-stress cavity; and a horn portion connected to said monolithic pre-stress portion, said horn portion is configured to be driven at a resonance frequency, and said horn portion is configured to amplify displacement along said first axis.