Methods Of Stiffening Sheet Metal

How large of a bend you put in the metal depends on the application and fitment of the piece.

Methods of stiffening sheet metal.

The rupture failure of the cfrp stiffened models is probably caused by the software s weakness to detect de bonding mechanism between the materials. Closed hems are basically flat with the material folded over completely on itself. They are used to strengthen part edges. This is also like flanging but then instead of an l its more like a u.

Before we get into the specifics of how and when to perform each technique let s take a step back and ask the question why should i stiffen my sheet anyway. Bend a flange all the way over and you have a hem. Ways in which you can improve the stiffness of sheet metal. An open hem is one that forms a u or c shape and might be used to accept a pin for a hinge.

It consists of two folded edges that are locked together with a hand groover fig. Sheet metal edge bending. When making a grooved seam on a cylinder you fit the piece over a stake and lock it with the hand groover fig. The grooved seam joint fig.

2 57 is one of the most widely used methods for joining light and medium gauge sheet metal. The metal in the areas where holes and slots are punched gets stretched and become more tensile which gives more structural rigidity to the sheet metal. Integrally formed rib stiffeners foam backed sheets and embossed material. Wire edging is a process in which the edge of the sheet metal is rolled over on a metal wire giving the sheet strong edges.

When stiffening ductwork or other sheet metal products there are two primary techniques fabricators can employ cross braking or beading. These methods will give sheet metal the rigidity you need to use it in a structural or semi structural application. Means of calculating the stiffness obtained by each method is presented. This feature is added by offsetting the plane of the sheet in a local area.

Three basic types of sheet stiffening methods have been investigated. Folding over the edge of a piece of sheet metal will give the metal instant structural integrity.