Indian Journal of Science and Technology

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Influence of Drill Geometry on Surface Roughness in Drilling of Al/sic/gr Hybrid Metal Matrix Composite


Affiliations
1 Dept. of Mechanical Engineering, Sathyabama University, Chennai-600 119, India
2 2Dept. of Mechanical Engineering, Jeppiaar Engineering College, Chennai-600 119, India
3 3Dept. of Mechanical Engineering, Sri Sai Ram Institute of Technology, Chennai-600 044, India
 

We present a comparative study on three different drill bits and the factors influencing on the surface roughness in drilling Al/SiC/Graphite hybrid composite material. The surface roughness of 'coated carbide twist drill', 'multifaceted drill' and 'step drill' bits were analysed. The machining parameters considered were the cutting speeds (1000 rpm, 2000 rpm, and 3000 rpm), feed rates (0.05 mm/rev 0.10 mm/rev and 0.15 mm/rev), and diameter of drill (4 mm, 8 mm and 12 mm). The analyses of the results were done using effect graphs. The results indicated that the step drill performed better than the other drills considered.

Keywords

Hybrid Metal Matrix Composites, Drilling, Surface Roughness
User

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  • Influence of Drill Geometry on Surface Roughness in Drilling of Al/sic/gr Hybrid Metal Matrix Composite

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Authors

A. Munia Raj
Dept. of Mechanical Engineering, Sathyabama University, Chennai-600 119, India
Sushil Lal Das
2Dept. of Mechanical Engineering, Jeppiaar Engineering College, Chennai-600 119, India
K. Palanikumarr
3Dept. of Mechanical Engineering, Sri Sai Ram Institute of Technology, Chennai-600 044, India

Abstract


We present a comparative study on three different drill bits and the factors influencing on the surface roughness in drilling Al/SiC/Graphite hybrid composite material. The surface roughness of 'coated carbide twist drill', 'multifaceted drill' and 'step drill' bits were analysed. The machining parameters considered were the cutting speeds (1000 rpm, 2000 rpm, and 3000 rpm), feed rates (0.05 mm/rev 0.10 mm/rev and 0.15 mm/rev), and diameter of drill (4 mm, 8 mm and 12 mm). The analyses of the results were done using effect graphs. The results indicated that the step drill performed better than the other drills considered.

Keywords


Hybrid Metal Matrix Composites, Drilling, Surface Roughness

References





DOI: https://doi.org/10.17485/ijst%2F2013%2Fv6i7%2F34356