Sheet Metal Flat Pattern Layout

Dimensions given on a flat pattern are affected by several bending factors like k factor and bend radius during the 3d modeling stage.

Sheet metal flat pattern layout.

Bend lines must be determined to develop a flat pattern for sheet metal forming. Therefore it is important to have the value correct in cad software. Before a sheet metal part is formed make a flat pattern to show how much material is required in the bend areas at what point the sheet must be inserted into the forming tool or where bend lines are located. Sheet metal cone calculator.

Enter flange length internal radius and thickness values. The layout may either be done on the material to be used or on a piece of paper. Value of bend deduction and flat pattern are shown in result section. The value of the k factor should range between 0 0 5.

Importance of the k factor in sheet metal design. The k factor is used to calculate flat patterns because it is related to how much material is stretched during bending. Use k factor calculator to calculate k factor values. Keep default values in calculator as zero.

Enter k factor values. The flat pattern drawing doesn t always list these factors. It allows you to determine either the size of raw material needed or the number of gore sections to fit on your available material.