When metal is bent the top section is going to undergo compression and the bottom section will be stretched.
K factor in sheet metal pdf.
The area within the sheet defined as the neutral axis does not get compressed on the inside of the neutral axis or expanded on the outside.
In this figure 1 the k factor can be calculated as δ t.
The k factor in sheet metal working is the ratio of the neutral axis to the material thickness.
When a piece of metal is being formed the inner portion of the bend compresses while the outer portion expands see figure 1.
K factor effectively 50 t max 25 t min where the neutral axis is situated in a bend is commonly called the k factor as it is signified as k in the development formulas.
The k factor is a constant determined by dividing the material thickness of the sheet by the location of the neutral axis.
The neutral axis is the area of transition between compression and expansion where no change in the material occurs except.
The value of the k factor varies from 33 to 50.
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.
Tool ribbon toolbar attributes step 01 choose the sheet metal attribute button step 02 set up the parameters as follows figure2 sheet metal attribute.
For example if the value of k factor for given material thickness and bending machines is known.
In sheet metal the k factor 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.
Since the inside compression can not exceed the outside tension the k factor can never exceed 50 in practical use.
K factor is the ratio of neutral axis location to the sheet metal thickness.
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.
Sheet metal flat length can be calculated using cad softwares.
Therefore using k factor there is no need to calculate sheet metal flat length manually.
Set up sheet metal attribute it is necessary to set up a default attribute for sheet metal such as bend radius k factor etc.
The k factor in sheet metal working is the ratio of the neutral axis to the material thickness.
When metal is bent the top section is going to undergo compression and the bottom section will be stretched.
The neutral axis does not suffer any change of length during a bending operation.
The k factor in sheet metal working is the ratio of the neutral axis to the material thickness.
When metal is bent the top section is going to undergo compression and the bottom section will be stretched.