| 摘要 |
A method to bend sheet material (1), where bars (2) are clamped to the edges of the sheet material (1) , or at equal distance from the bend line (5) and a loop is formed by straps (3). The loop pf sheet material (1) is then clamped together with beams (6) aligned with markings (4), which positions on the sheet material (1) depend on the bend radius (R) and the material thickness. There is also disclosed a method to bend a sheet material (1), where beams (6) are spaced a certain distance apart and a round bar is used to draw the sheet material (1) into a U-shape between the beams (6). Then the side of the beams are aligned with the markings (4) and the beams (6) are clamped around the sheet material (1) to form the bend. |
