Nonlinear Dynamics Model for Chip Segmentation in Machining

Timothy J. Burns; Matthew A. Davies

doi:10.1103/PhysRevLett.79.447

Nonlinear Dynamics Model for Chip Segmentation in Machining

Timothy J. Burns and Matthew A. Davies

Phys. Rev. Lett. 79, 447 – Published 21 July 1997

Abstract

We have developed a new model for chip formation in machining which includes a mechanism for thermomechanical feedback. This leads to an interpretation of metal cutting as a process which is similar in many ways to an open chemical reactor. As the cutting speed is increased, there is a Hopf bifurcation, which explains the observed change from continuous to segmented chip formation.

Received 31 January 1997

DOI:https://doi.org/10.1103/PhysRevLett.79.447

Authors & Affiliations

Timothy J. Burns

Mathematics and Computational Sciences Division, Information Technology Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899

Matthew A. Davies

Automated Production Technology Division, Manufacturing Engineering Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899