On the Surface Integrity of Precision-Ground Steel Cylindrical Parts |
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| Authors: | A G Mamalis J Kundr k K Gy ni |
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| Affiliation: |
a Manufacturing Technology Division, Department of Mechanical Engineering, National Technical University of Athens, Athens, Greece
b Manufacturing Technology Division, Department of Mechanical Engineering, National Technical University of Athens, Greece
c Department of Production Engineering, University of Miskolc, Miskolc, Hungary |
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| Abstract: | The effects of traditional corundum and boron-nitride (CBN) wheels on the surface integrity of internally and externally ground steel parts has been investigated in respect to microhardness, residual stresses, and change of texture. The microhardness and residual stress components of the surface layer of HSS tools ground with CBN wheels have been measured and texture has been also investigated. Case-hardened steels have been ground with mainly traditional wheels. The change of microhardness, residual stresses, and texture depends to a large extend not only on grinding parameters but also on the grade of sharpness of the wheel. The difference between grinding with sharp and worn wheels is significant. These facts prove the importance of different continuous wheel dressing processes. The effect of the coolant on the surface quality has also been examined. |
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| Keywords: | Precision grinding Surface integrity CBN tools Continuous wheel dressing Residual stresses |
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