Table 3 Experimental measurement results.
From: Effect of die fillet radius on tube thinning in free bending
Mold offset distance, U/mm | Number of groups | Section distortion rate, η/% | Pipe wall thinning rate, δ/% | ||
|---|---|---|---|---|---|
Measured value | Mean | Measured value | Mean | ||
4 | 1 | 5.03 | 5.02 | 3.1 | 3.0 |
2 | 5.07 | 3.3 | |||
3 | 4.96 | 2.6 | |||
6 | 4 | 6.85 | 6.86 | 4.3 | 4.3 |
5 | 6.90 | 4.6 | |||
6 | 6.83 | 4.0 | |||
8 | 7 | 8.05 | 8.03 | 5.6 | 5.4 |
8 | 8.01 | 5.3 | |||
9 | 8.03 | 5.4 | |||
10 | 10 | 8.42 | 8.43 | 5.6 | 5.6 |
11 | 8.41 | 5.6 | |||
12 | 8.45 | 5.7 | |||
12 | 13 | 9.01 | 9.02 | 5.8 | 5.8 |
14 | 9.01 | 5.8 | |||
15 | 9.03 | 5.8 | |||
