How To Roll Sheet Metal Edges

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

How to roll sheet metal edges.

The curled edge provides strength to the edge and makes it safe for handling. Sheet metal hems are formed using very different methods though produces features with similar uses and functionality. The smallest bending radius is equal to the upper roll diameter. Curling is different than a tear drop hem because in a curl the edge finishes inside itself where a hem leaves the initial edge exposed.

Pinch rolls stabilize the sheet metal in the grinding zone. Cut a slit on one end and use that slit to bend the edge over far enough to then dolly it to the final shape. 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.

Curls are most often used to remove a sharp untreated edge and. This is because the metal is simply being bent on one plane. You can create the perfect uniform radius with these bevel heads. Curling sheet metal is the process of adding a hollow circular roll to the edge of the sheet.

Here i show you how to roll an edge on your armor. It s a fairly simple process that adds strength to your armor as well as giving it a finished look and pr. Rounding metal with the bevel heads from beveltools ensure a smooth and consistent rounded edge on sheet plate pipe and hole. 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.

Stationary carbide knives or flat files for smoothing the edges are easy to incorporate into a low speed operation. Just do it in increments. 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. Grinding uses driven side rolls see figure 4.

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. Rolling sheet metal serves two important functions for armoring. This is how easy it is to make a rounded edge on metal.