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Influence of the Cutting Variables on the Surface Roughness of Alloy Steels Machined With Cylindrical Grinding

[+] Author Affiliations
Zulay Cassier, Patricia Muñoz-Escalona, Carlos Tepedino

Universidad Simón Bolívar, Caracas, Venezuela

Paper No. PVP2004-2312, pp. 161-165; 5 pages
doi:10.1115/PVP2004-2312
From:
  • ASME/JSME 2004 Pressure Vessels and Piping Conference
  • Fracture Methodologies and Manufacturing Processes
  • San Diego, California, USA, July 25–29, 2004
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4669-5
  • Copyright © 2004 by ASME

abstract

In machining precision mechanical parts, the prediction and the control of the desired surface roughness is very important. The grinding process requires a good control of the operative variables to guarantee best results. This research analyses the influence of the cutting variables such as workpiece speed, wheels grain size, down feed, and workpiece hardness on the surface finish and it is shown how the surface roughness improves when using low values of workpiece speed, transverse feed and down feed, as well as a small wheel grain size. A mathematical expression for roughness, Ra , as a function of the cutting variables and the mechanical properties, is obtained in order to predict the value of surface roughness. AISI 4140, AISI 4340 and AISI O1 alloy steels under different conditions were used for the experiments.

Copyright © 2004 by ASME

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