Working with sheet metal
Straight bends (angle or U-shapes)
For straight bends first draw your bending edge. We recommend leaving the protective foil on the sheet. It is optimal protection for the sheet and facilitates scratch-free processing.
Tape the sheet with the protective foil onto a particle board in such a manner that the bending edge comes to lie precisely on the edge of the board. Then place the second particle board precisely flush on the bending edge and screw both boards together outside of the sheet.
Anchor the sandwich pack with alfer®-Multi-clamp tightly in front of the work bench.
The better the sheet can be prevented from slipping by taping, clamping, or screw-fastening (if possible in the sheet area) the more dimensionally true the bending edge will be!
For the subsequent bend we recommend using a profile, roof strip, or board to bend the projecting sheet forwards (towards the body) as uniformly as possible until it reaches the desired bend angle. If you do not want to bend just one angle, but rather a U- or Z-shaped sheet, then repeat the process on the other side of the sheet.
Here you see the finished U-sheet. It is precisely flush, parallel, and rectangular.
If you do not manage to achieve the bend due to too great a length (over approx. 80 cm) or to too great a sheet thickness, you can also obtain the desired bend using a hammer and impact protection (profile or wood batten) by carefully knocking it down.