Machining stability using controlled contact tools

Abstract
A simple technique for stabilization of the metal cutting process has been investigated. It was found when machining orthogonally on a tube with controlled contact tools that for a given feed per revolution there is a critical tool contact length below which instability will not occur irrespective of the width of cut. Further, it was found that the critical contact length was almost exactly proportional to feed. The threshold of unconditional stability for any feed can thus be defined in terms of controlled tool contact length.

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