Neutral Axis In Sheet Metal

Where t is the distance.

Neutral axis in sheet metal.

The line where the transition from compression to stretching occurs is called the neutral axis. When metal is bent the top section is going to undergo compression and the bottom section will be stretched. The k factor in sheet metal working is the ratio of the neutral axis to the material thickness. K factor a constant determined by dividing the thickness of the sheet by the location of the neutral axis which is the part of sheet metal that does not change length.

In sheet metal the k factor is the ratio of the neutral axis to the material thickness. The k factor in sheet metal working is the ratio of the neutral axis to the material thickness. The bend allowance and bend deduction are two measures that relate the bent length of a piece of sheet metal to the flat length. When a piece of metal is being formed the inner portion of the bend compresses while the outer portion expands see figure 1.

The location of the neutral axis for a specific sheet is defined by a factor called k factor. K factor k can be defined as follows. When metal is bent the top section is going to undergo compression and the bottom section will be stretched. Mathematically k factor value is equal to the ratio of position of neutral axis and sheet thickness.

But add a little stress and force the metal to bend and watch what happens. The line where the transition from compression to stretching occurs is called the neutral axis. So if the thickness of the sheet was a distance of t 1 mm and the location of the neutral axis was a distance of t 0 5 mm measured from the inside bend then you would have a k factor of t t 0 5 1 0 5. K factor is a ratio that represents the location of the neutral axis with respect to the thickness of the sheet metal part and depends on material thickness and bend radius.

The granular bonds are stretched pulled and sometimes break forcing the grains apart as they come under tensional stresses.