Rolling Radius On Sheet Metal Edge

Visualize if you will rolling the edge of a piece of paper.

Rolling radius on sheet metal edge.

Create a raised edge in sheet metal that locks into the rolled edge of another piece. Therefore the bending inner radius of our sheet metal parts is basically 0 2. Good and accurate rounding of steel constructions according to en 1090 iso 12944 iso 8501 or imo pspc is becoming more and more important in the metal working industry. 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.

Leaving a radius on the other hand relieves this danger. Rounding edges with minium radius 2 mm is a necessity for good adhesion of coating or paint to protect against corrosion. Still some advice applies. It is better to leave a small radius inside the hem.

Recommended inside bend radius for sheet metal parts should be equal to material thickness. But for harder materials e g. This is because the metal is simply being bent on one plane. Turn your impact driver into a power crimper and create raised edges on sheet metal more quickly than hand crimpers.

The desired radius is created by step bending a progressively larger radius into the sheet beginning with the desired curl radius minus the material thickness and ending with the desired curl radius. Jamey jordan radius roll set 5 8 inch radius. Sharp inside bend radius in sheetmetal parts can cause material flow problems in soft material and fracturing in hard material. Sheet metal locking crimpers.

Of jamey jordan series 5 8 inch radius rolls allows you to make a full 90 degree radius bend on the edge of sheet metal. This is perfect for forming. No stretching or compressing is needed to achieve this shape. If you want to strengthen the edges of your metal sheet hemming is a great option.

For ordinary low carbon steel plates rust proof aluminum plates brass plates copper plates etc the inner radius 0 2 is no problem. Completely crushing the radius needs great power and tonnage.