Metal Shaping - Forming louvres manually
Channel: Classic-Car.TV
Date: 15/05/2020

Louvres are formed for better air discharge.

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In order to form such louvres manually, the slots must first be cut into the sheet with a cutting disc. A steel ruler serves as the guide rail. A 22mm round bead roll and a form roll serve to shape the bead. The louvre is stretched between the bead rolls. The lower roller borders on the inside of the pre-cut bead opening. Now the metal patch is fed forward through the bead rolls. At the end, the rolls are tightened again and the sheet is fed backwards through the rolls. As a result, the louvre is raised.
With a stamp, the bead is driven into the final shape. Two L-profiles clamped togehter in a distance serve as a base. Use a flat anvil and a spoon to shape the surround a little. Finally, the bead is smoothed on a round T-anvil.
This gives the louvre  its final shape.