Method for controlling an ultrasonic machining process

US8702883B2 · kind B2 · utility

Assignee

• HERRMANN ULTRASCHALLTECHNIK GMBH & CO. KG · DE

Inventors

• Thomas Herrmann · Ottobrunn, DE
• Volker Aust · Birkenfeld, DE

Key dates

• Filing date: Jul 12, 2013
• Grant date: Apr 22, 2014
• Expiry date: Jul 12, 2033

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29C66/942
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

Invention relating to a method for controlling an ultrasonic machining, in which an ultrasonic vibration is transmitted via a sonotrode into the material to be machined. During the first machining interval, a first welding variable of the group S, consisting of the frequency f and the amplitude ü of the ultrasonic vibration, the force F, which the sonotrode exerts on the material to be machined, the power P, which the generator delivers, and the speed v, with which the sonotrode is moved in the direction of the material to be machined, is kept constant until a first target variable of the group Z adopts a predetermined value. During an adjoining second machining interval, a second welding variable of the group S is kept constant until a second target variable of the group Z adopts a predetermined value, wherein the first and the second target value differ.