Force Required To Bend Sheet Metal Foldeing

Understanding the bend allowance and consequently the bend deduction of a part is a crucial first step to understanding how sheet metal parts are fabricated.

Force required to bend sheet metal foldeing.

The relationship between the v opening and the required tonnage is straight forward the larger the v opening the less tonnage is required to bend the metal. As a result the wipe die also determines the bend s inner radius. Air bending is a simple method of creating a bend without the need for lower die geometry. The bending force can be calculated from the sheet thickness die opening bend length and the ultimate tensile strength of the material.

ε y σy bending force requirement punch workpiece t die w force t sheet thickness w width of die opening l total length of bend into the page uts ultimate tensile. This tool allows you to determine tonnage internal radius v die opening and minimum flange you just have to insert the characteristics of the sheet metal to be bent. The sheet metal is supported by two surfaces a certain distance apart. The strength of the table is the force required to bend sheet metal up to 1 m in length.

The total strength of bending of a sheet is directly proportional to the length of bending. A punch exerts force at the correct spot bending the sheet metal between. When the sheet metal is put through the process of bending the metal around the bend is deformed and stretched. The tool can calculate the required bending force for bending aluminum stainless steel mild steel and weldox or strenx high strength steels.

Forces needed to bend sheet metal. The slack between the wipe die and the punch plays an important role in getting a good result. F 2 ybh2 4 fl 4 m max f bh2y l l σ ε e. To define the bend region and reduce the force required to bend a part out of sheet metal down to something you can handle without a brake press slots can be cut at the bending line to.

As this happens you gain a small amount of total length in your part. It is important to make sure that the sheet is properly pushed onto the wipe die. Stress distribution through the thickness of the part s s y y y y y. Wipe bending or edge bending is another way to bend sheet metal edges.