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RESEARCH PAPERS

Simulation of Surface Topography Formed During the Intermittent Turning Processes

[+] Author and Article Information
G. M. Zhang

Department of Mechanical Engineering and Systems Research Center, University of Maryland, College Park, MD 20742

S. Yerramareddy, S. M. Lee, S. C.-Y. Lu

Knowledge-Based Engineering Systems Research Laboratory, Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801

J. Dyn. Sys., Meas., Control 113(2), 273-279 (Jun 01, 1991) (7 pages) doi:10.1115/1.2896375 History: Received November 06, 1989; Online March 17, 2008

Abstract

This paper presents a methodology which employs computer simulation to dynamically generate the topography of a surface machined during an intermittent turning process. The methodology is based on a mathematical model that characterizes the intermittent turning process as an alternating sequence of forced and free vibratory motion. The simulation of machining workpieces, with discontinuous geometries of arbitrary shape, is facilitated by representing the workpiece surface as a two-dimensional grid, with an index for each cell in the grid accounting for the feature boundaries. The tool vibratory motion is integrated with the tool geometric motion to form a basis for the construction of surface texture produced during machining. The simulation model not only provides for a qualitative evaluation of the surface accuracy through a graphic visualization of the surface topography, but also provides a quantitative estimate of the roughness quality of the machined surface.

Copyright © 1991 by The American Society of Mechanical Engineers
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