Sheet Metal Flat Pattern Calculator

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.

Sheet metal flat pattern calculator.

It allows you to determine either the size of raw material needed or the number of gore sections to fit on your available material. You can use this sheet metal flat pattern calculator to calculate this increase in length. For creating a cone from sheet metal or any flat material. For example when sheet metal of length l is bend.

Mathematically k factor value is equal to the ratio of position of neutral axis and sheet thickness. After bending the total length a b is larger than length l. Cells on the right will output the desired values. Should be subtracted from the flat pattern so the formed part arrives at the desired dimensions.

In the example above it is indicated by a dashed blue line. Because a bend deduction can be measured in a physical part it is the most accurate way to calculate a material s stretch. Therefore the bend allowance added to the flange lengths. K factor in sheet metal bending is a constant used to calculate sheet metal flat length or flat pattern.

In this article we will discuss sheetmetal bend deduction bend allowance k factor y factor and sheet metal flat pattern calculations. The bend allowance describes the length of the neutral axis between the bend lines or in other words the arc length of the bend. You only have to insert interior angle flange lengths k factor inside radius and material thickness. The bend allowance is the amount of the neutral axis that bends.