Research Article
Experimental Investigation on Mechanical and Turning Behavior of Al 7075/x% wt. TiB2-1% Gr In Situ Hybrid Composite
Table 3
Experimental values of surface roughness by using 0.4 mm and 0.8 mm nose radius inserts.
| Material | Feed (mm/rev) | Depth of cut (mm) | Cutting speed (m/min) | Average surface roughness (, in m) | 0.4 mm nose radius insert | 0.8 mm nose radius insert |
| Al 7075 + 0% TiB2 + 1% Gr | 0.1 | 0.5 | 180 | 0.948 | 0.358 | 200 | 0.810 | 0.343 | 220 | 0.740 | 0.319 | 240 | 0.671 | 0.289 | 0.2 | 1.0 | 180 | 2.570 | 1.310 | 200 | 2.353 | 1.290 | 220 | 2.289 | 1.100 | 240 | 2.156 | 1.039 | 0.3 | 1.5 | 180 | 3.754 | 2.756 | 200 | 3.662 | 2.711 | 220 | 3.461 | 2.661 | 240 | 3.111 | 2.558 |
| Al 7075 + 3% TiB2 + 1% Gr | 0.1 | 0.5 | 180 | 0.882 | 0.507 | 200 | 0.843 | 0.519 | 220 | 0.736 | 0.456 | 240 | 0.680 | 0.416 | 0.2 | 1.0 | 180 | 2.134 | 1.240 | 200 | 1.882 | 1.211 | 220 | 1.877 | 1.111 | 240 | 1.836 | 1.011 | 0.3 | 1.5 | 180 | 3.875 | 2.809 | 200 | 3.575 | 2.572 | 220 | 3.545 | 2.473 | 240 | 2.911 | 2.412 |
| Al 7075 + 3% TiB2 | 0.1 | 0.5 | 180 | 1.117 | 0.761 | 200 | 1.081 | 0.740 | 220 | 1.011 | 0.685 | 240 | 0.949 | 0.598 | 0.2 | 1.0 | 180 | 2.657 | 1.318 | 200 | 1.863 | 1.291 | 220 | 1.751 | 1.210 | 240 | 1.711 | 1.171 | 0.3 | 1.5 | 180 | 3.692 | 2.238 | 200 | 3.458 | 2.195 | 220 | 3.342 | 2.115 | 240 | 3.128 | 2.095 |
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