Means (SE’s in parentheses) for relative breaking strengthz, breaking strength, and surface roughness. Read down a column, means followed by the same letter are not different (P > 0.05).
| Failure Tipe | N | Relative Breaking Strength (%) | Breaking Strength (kN) | Surface Roughness (mm) |
|---|---|---|---|---|
| Barrel | 11 | 15.9 (1.58) a | 31.46 (0.41) a | 0.57 (0.05) a |
| Body | 6 | 13.7 (1.07) a | 29.57 (0.76) ab | 0.89 (0.09) b |
| Hinge | 6 | 11.3 (2.68) a | 31.15 (0.75) ab | 0.83 (0.15) ab |
| Key | 14 | 17.5 (1.48) a | 29.86 (0.47) by | 0.76 (0.08) ab |