How To Roll Sheet Metal Edges

For sheet metal support rolls are needed near the knives or files.

How to roll sheet metal edges.

Stationary carbide knives or flat files for smoothing the edges are easy to incorporate into a low speed operation. Just do it in increments. Curling sheet metal is the process of adding a hollow circular roll to the edge of the sheet. The smallest bending radius is equal to the upper roll diameter.

The curled edge provides strength to the edge and makes it safe for handling. Grinding uses driven side rolls see figure 4. The deeper these rolls are set the smaller the bending radius. It s a fairly simple process that adds strength to your armor as well as giving it a finished look and pr.

Curls are most often used to remove a sharp untreated edge and. After entering the type of material sheet thickness and bending radius the cnc machine sets itself to roll bending by adjusting the middle rolls downwards in relation to the two side rolls. For the most part the easiest edge to roll is one on a straight line or one with a very slight outward curve. I did something like this when i made burn barrels just skipped the slitting part.

It strengthens a piece where it s most vulnerable the edges and it protects the wearer from getting gouged or cut by their own armor. Rounding metal with the bevel heads from beveltools ensure a smooth and consistent rounded edge on sheet plate pipe and hole. Rolling sheet metal serves two important functions for armoring. In the photos you can see that we start by folding the sheet metal over a sharp edge such as the edge of an anvil or sander stand.

Figure 1 1 shows that the length of the edge before the roll a is the same as the outermost area of the roll b and as the inner most part of the roll c. Sheet metal hems are formed using very different methods though produces features with similar uses and functionality. This is how easy it is to make a rounded edge on metal. If you don t want to weld 1 2 round on the edge get yourself a piece of 5 8 or 3 4 rod about 8 or 10 inches long.

Pinch rolls stabilize the sheet metal in the grinding zone. You can create the perfect uniform radius with these bevel heads. This is because the metal is simply being bent on one plane.