title: Longitudinal ultrasonic vibration assisted guillotining of stacked paper.
abstract: Ultrasonic vibration assisted cutting is a complex process with high dynamics. The interaction between cutting tool and workpiece is of key interest to understand the entire process. Experimental investigations are limited by the dynamics of the measurement system, and thus appropriately modeling of the ultrasonic vibration assisted cutting process is essential. In this investigation, a dynamic model regarding the ultrasonic vibration assisted guillotining of stacked paper sheets is developed. A Kelvin-Voigt material model, representing the individual sheets, is chosen, with its stiffness and damping parameters being empirically determined. A novel measurement strategy for studying the contact time and interaction between cutting tool and workpiece is introduced. It allows the verification of the highly dynamic behavior of the developed model. With the dynamic model, the experimentally observed cutting forces can be calculated. It is found that the dynamic forces cause a quicker failure of the material, which leads to a lower compression of the stack prior to reaching the critical cutting force.
authors.affiliation: Institute of Machine Tools and Manufacturing, ETH Zurich, Tannenstrasse 3, 8092 Zurich, Switzerland. Electronic address: deibel@iwf.mavt.ethz.ch.
authors.forename: Karl-Robert
authors.initials: KR
authors.lastname: Deibel
authors.affiliation: Institute of Machine Tools and Manufacturing, ETH Zurich, Tannenstrasse 3, 8092 Zurich, Switzerland.
authors.forename: Fabian
authors.initials: F
authors.lastname: Kaiser
authors.affiliation: Institute of Machine Tools and Manufacturing, ETH Zurich, Tannenstrasse 3, 8092 Zurich, Switzerland.
authors.forename: Remo
authors.initials: R
authors.lastname: Zimmermann
authors.affiliation: Institute of Machine Tools and Manufacturing, ETH Zurich, Tannenstrasse 3, 8092 Zurich, Switzerland.
authors.forename: Linus
authors.initials: L
authors.lastname: Meier
authors.affiliation: Institute of Machine Tools and Manufacturing, ETH Zurich, Tannenstrasse 3, 8092 Zurich, Switzerland.
authors.forename: Peter
authors.initials: P
authors.lastname: Bolt
authors.affiliation: Institute of Machine Tools and Manufacturing, ETH Zurich, Tannenstrasse 3, 8092 Zurich, Switzerland.
authors.forename: Konrad
authors.initials: K
authors.lastname: Wegener
keywords: Assisted; Guillotining; Modeling; Paper stack; Vibration