Modeling of the centerless infeed (plunge) grinding process
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A computer simulation method for investigating the form generation mechanism in the centerless infeed (plunge) grinding process is described. For a 3-D simulation model of form generation, contact points are assumed to be on least squares contact lines at the grinding wheel, regulating wheel, and work-rest blade. Using force and deflection analyses, the validity of this assumption is shown. Based on the 2-D simulation model developed in the previous work and the least squares contact line assumption, a 3-D model is presented. To validate this model, simulation results were compared with the experimental works. The experiments and computer simulations were carried out using three types of cylindrical workpiece shapes with varying flat length. The experimental results agree well with the simulation. It can be seen that the effect of flat end propagated to the opposite end through workpiece reorientation.
Key WordsCenterless Infeed (Plunge) Grinding Least Squares Contact Line (LSCL) Workpiece Reorientation
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- ASM International, 1989,Metals Handbook. 9th Edition, Vol. 16 Machining, pp. 422, 448.Google Scholar
- Dall, A. H., 1946, “Rounding Effect in Centerless Grinding,”Mechanical Engineering, Vol. 68, No. 4, ASME, pp. 325–329.Google Scholar
- Johnson. K. L., 1987,Contact Mechanics, Cambridge University Press, pp. 84–134.Google Scholar
- Kim, K., Chu, C. N. and Barash, M. M., 1992a, “Roundness Generation during Centerless Infeed Grinding,”Transactions of NAMRI of SME, 20, pp. 167–172.Google Scholar
- Kim, K., Chu. C. N. and Barash. M. M., 1992b.Cylindricity Control in Precision Centerless Grinding, Technical Report TR-ERC 92-6, Purdue University, pp. 23–31, 77–86.Google Scholar
- Kingery, W. D., Bowen. H. K. and Uhlmann. D. R., 1976,Introduction to Ceramics 2nd ed., John Wiley & Sons, pp. 768–783.Google Scholar
- Malkin. S., 1989, Grinding Technology, Ellis Horwood Limited, pp. 116.Google Scholar
- Reshetov, D.N. and Portman, V. T, 1988,Accuracy of Machine Tools, ASME Press, p. 275.Google Scholar
- Snoeys, R., and Wang, I-C, 1968, “Analysis of the Static and Dynamic Stiffnesses of the Grinding Wheel Surface,”Proc. 9th Int“l Corresponding Author,Des. and Res. Conf Part 2, pp. 1133–1148.Google Scholar
- Yonetsu, S., 1959, “Forming Mechanism of Cylindrical Work in Centerless Grinding,”Proc. Fujihara Memorial Faculty of Engineering, Keio Univ., Vol. 12, No. 47, pp. 27–45.Google Scholar