An approach to study the whirling motion of the BTA (boring trepanning association) deep hole boring system is presented by introducing the system excitation in the form of internal forces between the boring bar and the workpiece. This involves nonhomogeneous boundary conditions with homogeneous equations. The mathematical approach with the boring bar-workpiece internal cutting forces and external suppression forces will transform the problem into nonhomogeneous equations with homogenous boundary conditions. Using this approach the whirling motion of the boring bar is obtained at different points on the boring bar-workpiece assembly. External suppression forces will reduce the whirl amplitude at the same locations. Further, an experimental investigation is carried out on the BTA deep hole boring process while drilling at four cutting speeds using proximity pickups for displacement measurements.
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February 2007
Technical Papers
Whirling Vibrations in Boring Trepanning Association Deep Hole Boring Process: Analytical and Experimental Investigations
Hussien M. Al-Wedyan,
Hussien M. Al-Wedyan
Department of Mechanical and Industrial Engineering,
hwedyan@hotmail.com
Concordia University
, 1455 De Maisonneuve Boulevard, Montreal, Quebec H3G 1M8, Canada
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Rama B. Bhat,
Rama B. Bhat
Department of Mechanical and Industrial Engineering,
rbhat@vax2.concordia.ca
Concordia University
, 1455 De Maisonneuve Boulevard, Montreal, Quebec H3G 1M8, Canada
Search for other works by this author on:
Kudret Demirli
Kudret Demirli
Department of Mechanical and Industrial Engineering,
demirli@alcor.concordia.ca
Concordia University
, 1455 De Maisonneuve Boulevard, Montreal, Quebec H3G 1M8, Canada
Search for other works by this author on:
Hussien M. Al-Wedyan
Department of Mechanical and Industrial Engineering,
Concordia University
, 1455 De Maisonneuve Boulevard, Montreal, Quebec H3G 1M8, Canadahwedyan@hotmail.com
Rama B. Bhat
Department of Mechanical and Industrial Engineering,
Concordia University
, 1455 De Maisonneuve Boulevard, Montreal, Quebec H3G 1M8, Canadarbhat@vax2.concordia.ca
Kudret Demirli
Department of Mechanical and Industrial Engineering,
Concordia University
, 1455 De Maisonneuve Boulevard, Montreal, Quebec H3G 1M8, Canadademirli@alcor.concordia.ca
J. Manuf. Sci. Eng. Feb 2007, 129(1): 48-62 (15 pages)
Published Online: March 13, 2006
Article history
Received:
June 21, 2004
Revised:
March 13, 2006
Citation
Al-Wedyan, H. M., Bhat, R. B., and Demirli, K. (March 13, 2006). "Whirling Vibrations in Boring Trepanning Association Deep Hole Boring Process: Analytical and Experimental Investigations." ASME. J. Manuf. Sci. Eng. February 2007; 129(1): 48–62. https://doi.org/10.1115/1.2280610
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