Minimum Flange Length Sheet Metal

A cutout or the edge of your flange to your bend.

Minimum flange length sheet metal.

In order to make the stretching smoother. As a rule of thumb the distance from the outside of the material to the bottom of the cutout should be equal to the minimum flange length as prescribed by the air bend force chart. While specifying flange widths in your drawing please ensure that the width of the flange does not go below four times the thickness of the sheet metal. When using a punch press or laser cutting holes should never be less than that of the material thickness.

D 2 5t r. Choose a bend radius that matches your minimum bend. The minimum height of a bent flange is directly related to the material thickness bend radius and length of bend. Discover all our calculation tools in the calculators section of the top menu.

Otherwise the tool will create marks on the sheet metal surface while manufacturing. When multiple bends are on the same plane try and design the part so the bends all face the same direction. It shall be equal to three times of sheet thickness plus bend radius. The minimum width of a bend relief is one material thickness or 1 50 mm 0 06 inch whichever is greater.

If you have any questions or want to discuss your design contact us. Minimum sheet metal flange bend length is required to avoid cracks in the bending area. The upper tool splits that in half and as a result 3x material thickness is the recommended minimum flange size for air bending on a press brake. This will prevent the need for the operator to flip the part.

The minimum bend size l for sheet metal z bends of different material thicknesses is shown in table 1 12 below. 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 minimum fillet radius between the flange and the wall of the tensile member should be greater than 2 times the thickness of the plate ie r2 2t. Until the bend is completed the sheet metal must be supported on both sides of the v opening.

Table 1 12 minimum height of z bend. The minumum flange length is based on the die used to bend. Consult and air bend force chart to determine typical minimum flange lengths. Minimum sheet metal flange bend length 3 x sheet thickness bend radius minimum hole diameter guidelines.

Determine your minimum bend by measuring the distance from your closest feature i e. We are here to help. The tool can calculate the required bending force for bending aluminum stainless steel mild steel and weldox or strenx high strength steels.