Ultimate capability of variable pitch milling cutters

Variable pitch milling cutters intend to increase performance, but off-the-shelf cutters do not ensure this generally. Depending on the milling process they are selected for, they can perform better or even worse than uniform pitch cutters do. Improved performance can be guaranteed by considering th...

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Bibliographic Details
Published in:CIRP annals 2018, Vol.67 (1), p.373-376
Main Authors: Stepan, Gabor, Hajdu, David, Iglesias, Alex, Takacs, Denes, Dombovari, Zoltan
Format: Article
Language:English
Subjects:
Chatter
Optimization
Tool geometry
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Summary:Variable pitch milling cutters intend to increase performance, but off-the-shelf cutters do not ensure this generally. Depending on the milling process they are selected for, they can perform better or even worse than uniform pitch cutters do. Improved performance can be guaranteed by considering the reflected dynamic behaviour of the machine/tool/workpiece system. This work presents the achievable upper and lower capability bounds by introducing so-called stabilizability diagrams of a hypothetical variable pitch milling cutter that is tuned continuously along the stability boundaries. Robustly tuned milling cutters are designed for selected spindle speed ranges, which are experimentally tested both under laboratory and industrial conditions.
ISSN:0007-8506
DOI:10.1016/j.cirp.2018.03.005