Force Required To Bend Sheet Metal Foldeing

As a result the wipe die also determines the bend s inner radius.

Force required to bend sheet metal foldeing. 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. Stress distribution through the thickness of the part s s y y y y y. 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. Wipe bending or edge bending is another way to bend sheet metal edges.

A punch exerts force at the correct spot bending the sheet metal between. The tool can calculate the required bending force for bending aluminum stainless steel mild steel and weldox or strenx high strength steels. The sheet metal is supported by two surfaces a certain distance apart. It is important to make sure that the sheet is properly pushed onto the wipe die.

The bending force can be calculated from the sheet thickness die opening bend length and the ultimate tensile strength of the material. The slack between the wipe die and the punch plays an important role in getting a good result. The relationship is inversely proportional so if the v opening is doubled the tonnage will be halved. F 2 ybh2 4 fl 4 m max f bh2y l l σ ε e.

As this happens you gain a small amount of total length in your part. Forces needed to bend sheet metal. The die ratio may be entered to calculate the die opening which is typically 6 to 18 times the sheet thickness. The strength of the table is the force required to bend sheet metal up to 1 m in length.

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. Discover all our calculation tools in the calculators section of the top menu. When the sheet metal is put through the process of bending the metal around the bend is deformed and stretched. 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.