Bend Radius Sheet Metal Metric

With this free online tool we quickly get the sheet metal bend deduction and therefore the sheet metal blank initial flat length from the finished part measurements.

Bend radius sheet metal metric. 3 carbon 45 kg mm. The most important considerations when bending metal is the min. You only have to insert interior angle flange lengths k factor inside radius and material thickness. The bend allowance added to the flange lengths is equal to the total flat length of the part.

When bends are made smaller than the required min. Sheet metal bend radii. Cells on the right will output the desired values. Round up to the nearest v opening on the chart to match to your tooling.

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. This page also includes a link to a on line sheet metal bend allowance calculator. Discover all our calculation tools in the calculators section of the top menu. Radius of a bend is determined by the hardness and thickness of the metal.

Use this document to choose values that are both manufacturable and meet your needs. Therefore the bend deduction equals the difference between the mold line lengths and the total flat length. Preferred recommended 90 degree bend radii for various sheet metals. The tool can calculate the required bending force for bending aluminum stainless steel mild steel and weldox or strenx high strength steels.

Sheet metal calculator bend allowance equations and calculator. You will need to know your material thickness mt the bend angle b the inside radius ir and the k factor k. If these guidelines are not followed more research and or some form of analysis may be requried. Bend allowance is the amount of metal to be added to the total layout.

Bend radii minimum bend sizes. The bend deduction sometimes called the bend compensation describes how much the outside of the sheet has been stretched. The bend allowance formula takes into account the geometries of bending and the properties of your metal to determine the bend allowance. Calculate your desired v opening based on the thickness of the sheet metal you re bending.

Most sheet metal materials will conform to the calculations. Where necessary 5052 h32 may be bent to 1t and 6061 t6 to 1 1 2t. Radius metal will crack at the outside heel of the bend. The material thickness will be measured in decimal form not by the gauge number.

It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii. The following illustration shows the equation calculation for determining the bend allowance when forming sheet metal.