Research Article
Influence of Nano Boric Acid Material in Bio-Diesel Blends to Enhance the Surface Quality with Minimum Quality Lubrication
Table 10
Surface roughness (R) of wet machining operation (with solid lubricant).
| | Wet machining operation (20% of coconut oil + bio-diesel with 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 | 33 | 6.9 | 7 | 6.8 | 6.9 | M1 | 38 | 4 | 4.1 | 4.2 | 4.1 | H1 | 44 | 5.3 | 5.6 | 5.7 | 5.53 | | L2 | 34 | 6.7 | 6.8 | 6.9 | 6.8 | M2 | 39 | 8.1 | 8.4 | 8.5 | 8.33 | H2 | 44 | 6.1 | 6.2 | 6.2 | 6.16 | | L3 | 34 | 7.9 | 8.1 | 8.1 | 8.03 | M3 | 39 | 8.3 | 8.9 | 8.7 | 8.63 | H3 | 45 | 3 | 3.2 | 3.1 | 3.1 | | L4 | 35 | 7.8 | 8.3 | 8.1 | 8.06 | M4 | 41 | 4.8 | 5 | 4.9 | 4.9 | H4 | 46 | 3.7 | 3.8 | 3.8 | 3.76 | | L5 | 36 | 4.8 | 4.9 | 5 | 4.9 | M5 | 42 | 4.8 | 5.1 | 5 | 4.96 | H5 | 47 | 4.2 | 4.3 | 4.2 | 4.23 | | L6 | 38 | 4 | 4.1 | 4.2 | 4.1 | M6 | 44 | 5.3 | 5.6 | 5.7 | 5.53 | H6 | 48 | 4.9 | 5 | 5 | 4.96 |
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