From the perspective of regenerative chatter, variable-pitch milling process offers a mathematically very challenging task. It can be reduced to the problem of stability assessment on a linear time-invariant dynamics (LTI) which has more than one independent delays. This mathematically notorious problem is uniquely solved by a recent paradigm. It is called Cluster Treatment of Characteristic Roots (CTCR). This paper presents a process optimization procedure using CTCR over a special milling operation with variable pitch cutters. The optimization is based on maximizing the metal removal rate while avoiding the onset of chatter, which, in turn, enables production of the parts with a desirable surface quality. The end result is a powerful tool to determine some important geometrical and operational features of the process: (i) the pitch angle selection on the tool (i.e., variable pitch cutter vs. uniform pitch cutter), (ii) the optimum cutting conditions (i.e., depth of cut and the spindle speeds).
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ASME 2006 International Mechanical Engineering Congress and
Exposition
November 5–10, 2006
Chicago, Illinois, USA
Conference Sponsors:
- Manufacturing Engineering Division and Textile Engineering Division
ISBN:
0-7918-4774-8
PROCEEDINGS PAPER
Optimum Conditions for Variable Pitch Milling
Hassan Fazelinia,
Hassan Fazelinia
University of Connecticut
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Nejat Olgac
Nejat Olgac
University of Connecticut
Search for other works by this author on:
Hassan Fazelinia
University of Connecticut
Nejat Olgac
University of Connecticut
Paper No:
IMECE2006-13228, pp. 151-156; 6 pages
Published Online:
December 14, 2007
Citation
Fazelinia, H, & Olgac, N. "Optimum Conditions for Variable Pitch Milling." Proceedings of the ASME 2006 International Mechanical Engineering Congress and Exposition. Manufacturing Engineering and Textile Engineering. Chicago, Illinois, USA. November 5–10, 2006. pp. 151-156. ASME. https://doi.org/10.1115/IMECE2006-13228
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