Dynamic correction of oscillatory forces during ultrasonic-assisted metal forming

Michalski M, Leicht U, Heath A, Merklein M (2017)

Publication Type: Journal article

Publication year: 2017

Journal

Production Engineering Wissenschaftliche Gesellschaft für Produktionstechnik (WGP)

Publisher: Springer Verlag

Book Volume: 11

Pages Range: 455-465

Journal Issue: 4-5

DOI: 10.1007/s11740-017-0762-3

Abstract

Numerous investigations in the past decades reported that the forces required for forming processes can be reduced by superimposing high frequency oscillation. Even though many studies have been carried out identifying and assessing the complex cause of this reduction, cause-effect relationships are generally not yet established in detail. Since the measurement of dynamic forces plays a key role in clarifying the causes, a precise measurement of the forming forces oscillating with high frequency is necessary. Although dynamic force measurement is a well-known field of research, this study focuses on its utilisation for ultrasonic-assisted forming processes. Since dynamic effects distort original measurements in this frequency range, adjustment is required. Based on measurement instruments with high temporal resolution the present study introduces an approach for creating and employing a frequency dependent force correction in the high dynamic range. The experimental procedure for creating a transfer function up to a limiting frequency of 40 kHz is later analysed and verified by numerical modal and transient simulations. The results indicate that the highly location dependent dynamic force detection has major influence on peak forces. Observed deviations can be precisely corrected using the generated frequency dependent transfer function.

Authors with CRIS profile

Markus Michalski Institute of Manufacturing Technology Marion Merklein Institute of Manufacturing Technology

Additional Organisation(s)

Institute of Manufacturing Technology

Related research project(s)

Development of the fundamentals and the simulation model (UltraCaulk) UltraCaulk: KMU-innovativ - Verbundprojekt: Kontext- und strukturbasierte Abwehr zielgerichteter Angriffe - APT-Sweeper Aug. 1, 2014 - July 31, 2017

Involved external institutions

MATFEM DE Germany (DE) Robert Bosch GmbH DE Germany (DE)

How to cite

APA:

Michalski, M., Leicht, U., Heath, A., & Merklein, M. (2017). Dynamic correction of oscillatory forces during ultrasonic-assisted metal forming. Production Engineering, 11(4-5), 455-465. https://dx.doi.org/10.1007/s11740-017-0762-3

MLA:

Michalski, Markus, et al. "Dynamic correction of oscillatory forces during ultrasonic-assisted metal forming." Production Engineering 11.4-5 (2017): 455-465.

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