The K Factor For Bending Sheet Metal

When you bend sheet metal the neutral axis shifts toward the inside surface of the bend.

The k factor for bending sheet metal.

K factor in sheet metal bending is a constant used to calculate sheet metal flat length or flat pattern. Of all the mathematical constants in precision sheet metal fabrication the k factor stands out. The factor offsets the neutral line piece in the bend region from its center path until it has the length of the corresponding region of the flat pattern. It seems the most basic value while calculating bending allowance ba and bending deductions bd.

K factor is the most significant among the math constants in sheet metal fabs. I had a question on k factors for our 3 d modeling software. The k factor is empirically determined for. Sheet metal bending methods design tips k factor bending is one of the most common sheet metal fabrication operations.

In this article we will discuss sheetmetal bend deduction bend allowance k factor y factor and sheet metal flat pattern calculations. Mathematically k factor value is equal to the ratio of position of neutral axis and sheet thickness. K factor plays a key role in understanding the limits a material can handle during sheet metal bending. Use the known k factor and the known inner bending radius to calculate the bending radius of the neutral line.

You could say it s the roux of the precision bending gumbo. Types of metal bends and forming methods bending and bend formation are important factors when it comes to calculating bend deduction which is the total elongation for a particular type of bend. If you gain the correct k factor your precise bending will be ensured. Get the roux right and you re on your way to making a tasty meal.

It s the base value needed to calculate bend allowances ba and ultimately the bend deduction bd. Calculate k factor bend allowance and y factor for sheet metal bending the k factor is the most important and elusive variable of bending because it varies both as a function of the material and according to parameters such as angle and tooling. Also known as press braking flanging die bending folding and edging this method is used to deform a material to an angular shape.