A bending brake will be best suited for shaping flat square sheets of light gauge aluminum.
Which type of aluminum sheet bends best.
This will give you a nice bend.
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.
From a bending perspective it s always best to bend these parts in an annealed state and then temper them to the correct condition.
Series 7xxx are the aluminum zinc magnesium and aluminum zinc copper alloys.
A commercially pure aluminum with added manganese to increase its strength 20 stronger than the 1100 grade.
When this is an issue 2024 is commonly used in an anodized finish or in clad form thin surface layer of high purity aluminum known as alclad.
That s the ideal anyway but the reality is that many parts arrive at the press brake in a less than ideal state.
Proper bending can be done with annealing the aluminum first although it s not an ideal candidate for formed parts.
Miserable to bend cracking is very common and cold bending will always weaken the metal.
These heat treatable alloys exhibit great strength good corrosion resistance and ease of formability.
Highly formable and one of the best kinds of aluminum to bend.
The are mainly used in architectural applications.
The best aluminum alloys for bending come down to series 3xxx and series 5xxx and sometimes series 6xxx.
The most widely used of all aluminum alloys.
Aluminium alloy 3003 excellent for bending the best series for forming and thus for bending are the alloy series 3xxx 5xxx and in some cases 6xxx.
Series 6xxx are the aluminum magnesium silicon alloys.
Heavy gauge aluminum bars or rods must be heat bent using an acetylene torch and vice.
They exhibit very high strength making them very difficult to form.
Basic bending brakes typically retail for around 20 50 and are small enough to fit easily on most work benches or tabletops.
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.
