Research Article
Influence of Nano Boric Acid Material in Bio-Diesel Blends to Enhance the Surface Quality with Minimum Quality Lubrication
Table 9
Surface roughness (R) of wet machining operation (without adding solid lubricant).
| | Wet machining operation (20% of coconut oil + bio-diesel without adding solid lubricant) | | Low machining operations | Medium machining operations | High machining operations | | L | T (°C) | R (µm) | Avg.R
(µm) | L | T (°C) | R (µm) | Avg.R
(µm) | L | T (°C) | R (µm) | Avg.R
(µm) | | R1 | R2 | R3 | R1 | R2 | R3 | R1 | R2 | R3 |
| | L1 | 35 | 7.3 | 7.1 | 7.1 | 7.1666667 | M1 | 40 | 4.3 | 4.4 | 4.3 | 4.3333333 | H1 | 46 | 5.9 | 6.1 | 6.2 | 6.066667 | | L2 | 36 | 6.9 | 7.1 | 7.4 | 7.1333333 | M2 | 41 | 8.9 | 9.1 | 9.2 | 9.066667 | H2 | 47 | 6.5 | 6.8 | 6.9 | 6.733333 | | L3 | 36 | 8.1 | 8.4 | 8.6 | 8.3666667 | M3 | 41 | 8.8 | 9.3 | 9.4 | 9.166667 | H3 | 49 | 3.9 | 4 | 4.1 | 4 | | L4 | 38 | 8.2 | 8.3 | 8 | 8.1666667 | M4 | 42 | 5 | 5.1 | 5.1 | 5.066667 | H4 | 51 | 4.1 | 4.1 | 3.9 | 4.033333 | | L5 | 39 | 5 | 5.2 | 5.1 | 5.1 | M5 | 44 | 5.2 | 5.2 | 5.3 | 5.233333 | H5 | 52 | 4.9 | 5.1 | 5.2 | 5.066667 | | L6 | 40 | 4.3 | 4.4 | 4.3 | 4.3333333 | M6 | 46 | 5.9 | 6.1 | 6.2 | 6.066667 | H6 | 53 | 5.1 | 5.2 | 5.1 | 5.133333 |
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