Investigation of TiAlN coated roller burnishing on Al-(B4C)p MMC workpiece material |
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| Authors: | E Shankar S Balasivanandha Prabu T Sampath Kumar M R Stalin John |
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| Affiliation: | 1. Department of Mechanical Engineering, Rajalakshmi Engineering College, Thandalam, Chennai, India;2. Department of Mechanical Engineering, College of Engineering, Anna University, Guindy, Chennai, India;3. School of Mechanical Engineering, Vellore Institute of Technology University, India;4. Department of Mechanical Engineering, SRM University, Kattankulathur, Chennai, India |
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| Abstract: | Burnishing avoids the need for super finishing operations after the conventional turning process, to enhance the surface quality. This paper deals with the surface modifications of Al(B4C)p Metal Matrix Composites (MMC) workpiece material after burnishing with a TiAlN coated WC roller. The burnishing speed, lubrication type, burnishing passes, and coating were the input parameters. Surface hardness and roughness after the burnishing were studied. It was found that the coating on the WC roller had enhanced the hardness in the workpiece after burnishing in the case of Al-5?wt.% (B4C)p, under all conditions. The effect of the coating on the work piece surface hardness was not significant with Al-10?wt.% (B4C)p. While burnishing Al-5?wt.% (B4C)p, the minimum surface roughness combined with maximum surface hardness was obtained, during the third pass under dry condition using uncoated rollers. The number of passes to achieve the desired surface conditions reduced, on using coated rollers with kerosene as the lubricant. |
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| Keywords: | Burnishing coating composites deformation hardness roller roughness surface |
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