Sheet Metal Bend Line

Next put your wooden or metal form blocks in the vice and clamp your sheet of metal between the forms.

Sheet metal bend line.

This page also includes a link to a on line calculator. The following illustration shows the equation calculation for determining the bend line to mold allowance when forming sheet metal. Bend line the line across the metal where the punch comes in contact with the metal and the bend begins. 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.

Commonly used equipment include box and pan brakes brake presses and other specialized machine presses. 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. To bend sheet metal in a vice start by marking a line on the metal where you want to bend it.

This is done through the application of force on a workpiece. Most sheet metal materials will conform to the calculations. This lets you dimension the bend line to other geometry. 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.

Typical products that are made like this are boxes such as electrical enclosures and rectangular ductwork. Bending the process of cold working metal to achieve a desired profile. The bend allowance and bend deduction are two measures that relate the bent length of a piece of sheet metal to the flat length. Sheet metal bending methods design tips k factor bending is one of the most common sheet metal fabrication operations.

Only lines are allowed in the sketch. 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. 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.

Therefore the bend allowance added to the flange lengths is equal to the total 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.