Table 2 Mechanical properties of welded specimens
From: Mechanical properties of friction-stir-welded polyamide sheets
Trial | Rotational speed (rpm) | Traverse speed (mm/min) | Tensile strength (MPa) | Relative tensile strength (%) | Impact strength (kJ/m2) | Relative impact strength (%) |
|---|---|---|---|---|---|---|
1 | 780 | 27 | 4.78 | 30.70 | 6.26 | 17.08 |
2 | 780 | 42 | 1.90 | 12.20 | 3.51 | 9.58 |
3 | 780 | 62 | 1.08 | 6.94 | 2.11 | 5.76 |
4 | 994 | 27 | 6.93 | 44.51 | 8.32 | 22.71 |
5 | 994 | 42 | 3.23 | 20.75 | 6.52 | 17.79 |
6 | 994 | 62 | 1.75 | 11.24 | 3.85 | 10.51 |
7 | 1255 | 27 | 8.38 | 53.82 | 8.61 | 23.50 |
8 | 1255 | 42 | 5.88 | 37.76 | 10.19 | 27.81 |
9 | 1255 | 62 | 2.89 | 18.56 | 5.89 | 16.07 |
10 | 1570 | 27 | 6.57 | 42.20 | 9.54 | 26.04 |
11 | 1570 | 42 | 8.51 | 54.66 | 10.80 | 29.48 |
12 | 1570 | 62 | 5.93 | 38.09 | 6.81 | 18.59 |
13 | 2000 | 27 | 4.71 | 30.25 | 7.70 | 21.01 |
14 | 2000 | 42 | 7.25 | 46.56 | 8.91 | 24.32 |
15 | 2000 | 62 | 3.22 | 20.68 | 7.09 | 19.35 |
Base material | … | … | 15.57 | 100 | 36.64 | 100 |