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Analytical Chatter Stability of Milling With Rotating Cutter Dynamics at Process Damping Speeds
University West, Department of Engineering Science, Division of Production Engineering. (Machining Vibration PTW)ORCID iD: 0000-0001-9331-7354
University of British Columbia, Department of Mechanical Engineering, Manufacturing Automation Laboratory.
2010 (English)In: Journal of manufacturing science and engineering, ISSN 1087-1357, E-ISSN 1528-8935, Vol. 132, no 2Article in journal (Refereed) Published
Abstract [en]

Thispaper presents a chatter stability prediction method for milling flexibleworkpiece with end mills having asymmetric structural dynamics. The dynamicchip thickness regenerated by the vibrations of the rotating cutterand the fixed workpiece is transformed into the principle modaldirections of the rotating tool. The process damping is modeledas a linear function of vibration velocity. The dynamics ofthe milling system is modeled by a time delay matrixdifferential equation with time varying directional factors and speed dependentelements. The periodic directional factors are averaged over a spindleperiod, and the stability of the resulting time invariant butspeed dependent characteristic equation of the system is investigated usingthe Nyquist stability criterion. The stability model is verified withtime domain numerical simulations and milling experiments.

Place, publisher, year, edition, pages
USA: ASME , 2010. Vol. 132, no 2
Keywords [en]
Chatter, Milling
National Category
Manufacturing, Surface and Joining Technology
Research subject
ENGINEERING, Manufacturing and materials engineering
Identifiers
URN: urn:nbn:se:hv:diva-2382DOI: 10.1115/1.4001251OAI: oai:DiVA.org:hv-2382DiVA, id: diva2:312382
Available from: 2010-04-23 Created: 2010-04-23 Last updated: 2017-12-12Bibliographically approved

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Eynian, Mahdi

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