Scoring And Bending Sheet Metal

Place the fracture line over the edge of a table and bend the overhang slightly downwards.

Scoring and bending sheet metal.

This weakens the aluminium and creates a fracture line. Bending sheet metal by hand is a manageable task if the piece of sheet metal is small and thin enough to handle. This is done through the application of force on a workpiece. These stresses shift the neutral axis toward the inside surface of the bend.

With the aid of a straight edge and a sharp knife score both sides of the aluminium sheet. The angle of the bend is determined mainly by the amount of material removed from the groove. Scoring and bending is one of the most important ways of constructing jewellery. Bending is one of the most common sheet metal fabrication operations.

During bending compressive stresses occur on the inside of the bend toward the inside bend radius while expansion occurs toward the outside radius. If you are bending curves it is very important to begin each bend at the furthest tightest inside of the curve first one then the next in order to avoid parts you did not bend yet kinking in the opposite direction to the bend you want. The force must exceed the material s yield strength to achieve a plastic deformation. The inside bend radius should be equal to the thickness of the material that you re forming.

Also known as press braking flanging die bending folding and edging this method is used to deform a material to an angular shape. Most frequently expensive sheet metal bending tools called brakes are used to bend sheet metal but you can also complete this task without one. If you re bending 0 020 thick material use a 0 020 radius. Sheet aluminium can be cut without the need for a guillotine or tin snips which tend to deform the metal.

Cut sheet metal avoid accidentally bending scoring or gouging the metal in your next diy project when you use the tools and technique outlined here. Scoring is a method of obtaining very sharply defined bends in metal sheets. In other words if you re bending 1 8 sheet use a tool with a 1 8 radius to form the inside of the bend. The metal was annealed before the scoring was begun.