Air Bending Sheet Metal Table

Wide bending angle with one set of tooling.

Air bending sheet metal table.

Besides there will have a certain amount of spring back in air bending so you need to bend a slightly more acute angle so as to get the desired bend angle. Actual dimensions can only be found by making the bend and measuring the results. The above formula is for right angle bends only. The angle can t be smaller than the punch tip angle.

How bend calculations are used in a bending operation. For gaging remember to use only one leg and one half of the bend allowance to approximate the distance. The table below helps you identify the minimum flange length b mm and inside radii ir mm according to material thickness t mm. If using a 30 punch 180 30 bending angle can be obtained.

An air bend force chart or force chart breaks down a number of key components of sheet metal bending in an easy to reference format. Natural grain of the material is formed as the sheet is rolled from molten ingot. The punch is then forced past the top of the die into the v opening without coming into contact with the bottom of the v. Bend allowance and bend radius all the space between the band tangent lines is the.

The gauge inside radius die opening and minimum flange length are all interconnected through different equations and relationships the air bend force. The terms are used in sheet metal forming and flat pattern layout. Bending is a manufacturing process that produces a v shape u shape or channel shape along a straight axis in ductile materials most commonly sheet metal. Even on malleable materials you can end up cracking the metal at the bend or weakening it to the point where it ll break with minimal force.

V bending is the most common bending method using a punch and die. It has three subgroups bottoming air bending and coining. Commonly used equipment include box and pan brakes brake presses and other specialized machine presses typical products that are made like this are boxes such as electrical enclosures and rectangular ductwork. In this process the workpiece comes in contact with the outside edges of the die as well as the punch tip.

The solution is to have a radius on the tool that you ll be using to bend the metal. Being able to read a bend force chart is crucial for any brake press operator and sheet metal engineer. If you bend to a sharp inside corner with sheet metal you ll be adding a ton of internal stresses. Air bending and bottoming account for around 90 of all bending jobs.

The tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase. Features of air bending. To use the tables below. Flange is the shorter part of a formed angle.

It is possible to choose other bends but tooling charges may apply.