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research-article

Surface location error and surface roughness for period-n milling bifurcations

[+] Author and Article Information
Andrew Honeycutt

University of North Carolina at Charlotte, Department of Mechanical Engineering and Engineering Science, 9201 University City Blvd., Charlotte, NC 28223
ahoney15@uncc.edu

Tony Schmitz

University of North Carolina at Charlotte, Department of Mechanical Engineering and Engineering Science, 9201 University City Blvd., Charlotte, NC 28223
tony.schmitz@uncc.edu

1Corresponding author.

ASME doi:10.1115/1.4035371 History: Received September 07, 2016; Revised November 28, 2016

Abstract

This paper provides time domain simulation and experimental results for surface location error and surface roughness when machining under both stable (forced vibration) and unstable (period-2 bifurcation) conditions. It is shown that the surface location error follows similar trends observed for forced vibration, so zero or low error conditions may be selected even for period-2 bifurcation behavior. The surface roughness for the period-2 instability is larger than for stable conditions because the surface is defined by every other tooth passage and the apparent feed per tooth is increased. Good agreement is observed between simulation and experiment for stability, surface location error, and surface roughness results.

Copyright (c) 2016 by ASME
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