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Ultrasonic Deep-Drawing and Ironing with the Aid of Flat and Profiled Radial Resonators

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Abstract:

A research and development programme was formulated to establish design criteria applied to the deep-drawing and ironing processes with the aid of radial resonators.

Cans of 68.26 mm and 25.4 mm diameter were deep-drawn in different materials for which the increases in depths of draw varied from zero to approximately 20%, depending on parameters which are discussed in depth.

The ultrasonic ironing programme showed that the punch load could be reduced to zero, indicating that a substantial increase in reduction of area per pass could be obtained. Tests were performed to determine the optimum die angle for the case of a radially oscillated die.

Zusammenfassung

Es wurde ein Forschungs- und Entwicklungsprogramm zur Erstellung von Entwurfskriterien für Radialresonatoren mit Anwendungen auf Tiefzieh- und Abstreckziehprozesse formuliert.

Dosen aus verschiedenen Materialien mit Durchmessern von 68,26 mm und 25,4 mm wurden tiefgezogen. Die Zunahme der Ziehtiefe bewegte sich zwischen Null und etwa 20%, abhängig von Parametern, die ausführlich diskutiert werden.

Das Ultraschall-Abstreckziehprogramm zeigte, daß die Stempellast auf Null reduziert werden konnte. Dies weist auf einen wesentlichen Anstig der Flächenverminderung pro Arbeitsgang hin. Es wurden ferner Versuche zur Bestimmung des optimalen Stempelwinkels für den Fall radial schwingender Stempel durchgeführt.

Sommaire

On formule un programme de recherche et de développement pour établir les critères à appliquer aux projets concernant l'usinage en surface et en profondeur (étirage et emboutissage) au moyen de résonateurs radiaux.

Des boîtes cylindriques aux diamètres de 68,26 mm et 25,4 mm ont été embouties dans divers matériaux et on a étudié et discuté les paramètres conditionnant le creusement.

Le programme d'étirage par ultrasons a montré que la pression d'usinage pouvait être réduite à zéro, permettant ainsi une augmentation substantielle de l'efficacité des passes. Des tests ont été effectués en vue de déterminer l'angle optimum de l'outil dans le cas où ce dernier est soumis à des vibrations radiales.

Document Type: Research Article

Publication date: May 1, 1980

More about this publication?
  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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