Abstract

Vibratory Finishing is a commonly used process for deburring and polishing. The process effectiveness is difficult to quantify due to a nexus of variables relating to workpiece, media, compound and machine. In this paper, effect of orientation of rectangular Al6061 workpieces is considered with respect to the motion of ceramic media using water as lubricant. It is found that parallel orientation of workpiece to media motion and higher lubrication level lead to higher degree of sliding, thereby leading to smoother finish. Experiments with different ceramic media showed smoother finish with the geometry more susceptible to rounding. The aforesaid findings can be employed in applications requiring superpolished surfaces.

Highlights

  • At the end of 10 hours, parallel orientations generally achieve a lower value of Roughness Average (Ra), followed by diagonal orientation and perpendicular orientation

  • This means that parallel orientation results in a smoother surface or has the best rate of polishing, while perpendicular orientation generally has the worst polishing effect

  • The one-dimensional vibratory finishing experiments performed on Al 6061 coupons using ceramic media show that a parallel workpiece orientation leads to smoother finish due to greater degree of sliding as mentioned in [4]

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Summary

Introduction

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Article available at http://www.matec-conferences.org or http://dx.doi.org/10.1051/matecconf/20153004001

Experimental Setup and Procedure
Effect of workpiece orientation
Effect of lubrication:
Conclusion

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