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Cylindrical Grinding Cycle Design Based on Final Part Quality Constraints

[+] Author Affiliations
Rogelio L. Hecker

UNLPam, LP, Argentina

Steven Y. Liang

Georgia Institute of Technology, Atlanta, GA

Paper No. IMECE2003-42166, pp. 69-76; 8 pages
doi:10.1115/IMECE2003-42166
From:
  • ASME 2003 International Mechanical Engineering Congress and Exposition
  • Manufacturing
  • Washington, DC, USA, November 15–21, 2003
  • Conference Sponsors: Manufacturing Engineering Division
  • ISBN: 0-7918-3720-3 | eISBN: 0-7918-4663-6, 0-7918-4664-4, 0-7918-4665-2
  • Copyright © 2003 by ASME

abstract

A grinding process model to predict the forces and power based on a probabilistic analysis of the chip thickness is presented. The model includes tool properties, material properties, kinematic conditions, and dynamic effects. A surface roughness model based on the predicted chip thickness is formulated and validated with empirical data. A grinding cycle is proposed by combining power control during the stock removal stage and feed control during the finishing stage. The grinding power model and the surface roughness model were used to simulate the process and to find the optimal settings for the cycle. The desired grinding power and the workpiece rotational velocity for stock removal were selected to not exceed the machine capabilities and to prevent workpiece burn. The feed and the workpiece tangential velocity of the finishing stage were found based on the final part requirements such as surface roughness and the theoretical out-of-roundness. This grinding cycle was implemented and tested in an open architecture machine.

Copyright © 2003 by ASME
Topics: Grinding , Design , Cycles

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