When metal is bent the top section is going to undergo compression and the bottom section will be stretched.
Neutral axis sheet metal.
The bend allowance and bend deduction are two measures that relate the bent length of a piece of sheet metal to the flat length.
Where t is the distance.
When a piece of metal is being formed the inner portion of the bend compresses while the outer portion expands see figure 1.
The k factor in sheet metal working is the ratio of the neutral axis to the material thickness.
K factor k can be defined as follows.
The line where the transition from compression to stretching occurs is called the neutral axis.
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.
By calculating and taking into consideration the developed lengthy a qualified metal bender roller can accurately bend plate to the desired final product.
When the sheet is flat without any applied stress the neutral axis is in the middle of the sheet.
Diego plate rolling november 15 2019.
Bend allowance plays a critical role in calculating flat length of any sheet metal part.
The neutral axis and considerations for bending plate.
The k factor in this case kfactor expresses that distance as a percentage of the material s thickness.
When metal is bent the top section is going to undergo compression and the bottom section will be stretched.
Let us discuss in detail about bend allowance k factor and y factor.
In other words the neutral axis for this part occurs kfactor 100 of the way through the material s thickness.
In sheet metal the k factor is the ratio of the neutral axis to the material thickness.
The location of the neutral axis for a specific sheet is defined by a factor called k factor.
The bend allowance describes the length of the neutral axis between the bend lines or in other words the arc length of the bend.
The neutral axis and considerations for bending plate.
The k factor in sheet metal working is the ratio of the neutral axis to the material thickness.
The line where the transition from compression to stretching occurs is called the neutral axis.
The distance between the inside surface of the part and the neutral axis is known as the neutral axis offset.
But add a little stress and force the metal to bend and watch what happens.