Sheet Metal Flat Pattern Calculator

Should be subtracted from the flat pattern so the formed part arrives at the desired dimensions.

Sheet metal flat pattern calculator.

For creating a cone from sheet metal or any flat material. Sheet metal cone calculator view the cone instructions below to learn how to manually layout the flat pattern for a truncated cone in single or multiple gore sections. The bend allowance describes the length of the neutral axis between the bend lines or in other words the arc length of the bend. After bending the total length a b is larger than length l.

It allows you to determine either the size of raw material needed or the number of gore sections to fit on your available material. The flat pattern of a cone is an application that calculates the parameters for a development of a right oblique or truncated cone. 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. For example when sheet metal of length l is bend.

The bend allowance and bend deduction are two measures that relate the bent length of a piece of sheet metal to the flat length. You only have to insert interior angle flange lengths k factor inside radius and material thickness. Therefore the bend allowance added to the flange lengths. Because a bend deduction can be measured in a physical part it is the most accurate way to calculate a material s stretch.

In the example above it is indicated by a dashed blue line. K factor in sheet metal bending is a constant used to calculate sheet metal flat length or flat pattern. Cells on the right will output the desired values. Mathematically k factor value is equal to the ratio of position of neutral axis and sheet thickness.