Sheet Metal Bend Line

Typical products that are made like this are boxes such as electrical enclosures and rectangular ductwork.

Sheet metal bend line.

Most sheet metal materials will conform to the calculations. 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. This page also includes a link to a on line calculator. Therefore the bend allowance added to the flange lengths is equal to the total flat length.

You can add bend lines to a flat face of a sheet metal part with a sketched bend feature. This lets you dimension the bend line to other geometry. Bending is a manufacturing process that produces a v shape u shape or channel shape along a straight axis in ductile materials most commonly sheet metal. To bend sheet metal in a vice start by marking a line on the metal where you want to bend it.

Only lines are allowed in the sketch. Next put your wooden or metal form blocks in the vice and clamp your sheet of metal between the forms. Also known as press braking flanging die bending folding and edging this method is used to deform a material to an angular shape. Cells on the right will output the desired values.

Some items to note about a sketched bend feature. Bump bending also known as step bending the process for forming a large radius with conventional tooling by performing a series bends in close proximity. You only have to insert interior angle flange lengths k factor inside radius and material thickness. Bend line the line across the metal where the punch comes in contact with the metal and the bend begins.

The bend allowance and bend deduction are two measures that relate the bent length of a piece of sheet metal to the flat length. Your bend lines are stored in the same location as above but there are 2 other sheet metal features that can interfere if you change the default way those are displayed if you do not change anything with in them then you should have nothing to worry about. Commonly used equipment include box and pan brakes brake presses and other specialized machine presses. If your sheet metal is long ask a friend to stabilize the part hanging out from the form blocks so it doesn t affect the bend.

This is done through the application of force on a workpiece. The bend allowance describes the length of the neutral axis between the bend lines or in other words the arc length of the bend.