Good Aluminum Sheet For Bending

This is done through the application of force on a workpiece.

Good aluminum sheet for bending.

Miserable to bend cracking is very common and cold bending will always weaken the metal. Series 6xxx are the aluminum magnesium silicon alloys. Highly formable and one of the best kinds of aluminum to bend. They exhibit a very good combination of high strength resistance to corrosion formability and good weldability.

This weakens the aluminium and creates a fracture line. A bending brake will be best suited for shaping flat square sheets of light gauge aluminum. It gives you design flexibility integrated functions good aesthetics and complex geometries you can also choose between different bending processes such as roller bending press bending draw bending and stretch bending. Place the fracture line over the edge of a table and bend the overhang slightly downwards.

The top 3 aluminum alloys for being are the 3003 which has medium strength and the best cold workability the 5052 which is the highest strength alloy of the more common non heat treatable grades and the 6061 which is one of the more versatile heat treatable alloys. Sheet aluminium can be cut without the need for a guillotine or tin snips which tend to deform the metal. That s the ideal anyway but the reality is that many parts arrive at the press brake in a less than ideal state. These heat treatable alloys exhibit great strength good corrosion resistance and ease of formability.

Bending is one of the most common sheet metal fabrication operations. Also known as press braking flanging die bending folding and edging this method is used to deform a material to an angular shape. This is a highly technical and potentially dangerous process best left to a professional metalworker. The force must exceed the material s yield strength to achieve a plastic deformation.

From a bending perspective it s always best to bend these parts in an annealed state and then temper them to the correct condition. Heavy gauge aluminum bars or rods must be heat bent using an acetylene torch and vice. This will give you a nice bend. The alloy 5052 h32 may bend well enough for my use and shows about 50 higher tensile and yield.

With the aid of a straight edge and a sharp knife score both sides of the aluminium sheet. 3003 definitely isn t fun for drilling or any other sort of operation involving edge cutting tools. Proper bending can be done with annealing the aluminum first although it s not an ideal candidate for formed parts. 6061 t6 aluminum is tempered and notorious for not bending easily.

The bending process for aluminium is useful and cost effective. Grain direction bend line should go across the grain for the best bend having said that a typical sharp 90 bend on a piece of 1 8 aluminum sheet should be a minimum 1 8 inside radius use either 3003 or 5052 ideally the bend line should go across the grain.