Helix and Cast
AXIAL DISPLACEMENT
As can be seen from the formula, the axial displacement (known as the Pitch or Helix) is determined by the diameter of a Cast and the diameter of the wire.
When freely turning, the following conditions must be met for there to be considered no residual voltage in wires with a diameter less than 5.00 mm:
Torsion
This is determined by the number of times a wire can be twisted back on itself before breaking.
![próximamente](/multimedia/uploads/images/Alambre_Torsi%C3%B3n_VINCO.jpg)
Bending
Based on certain bend angle and bend radius parameters, the test determines the number of times the wire can be bent (at least) before breaking.
![](/multimedia/uploads/images/doblado_alambre_vinco2.jpg)
Necking
This is the reduction of the area at the breaking point, calculated as the ratio between the final and initial sections, expressed as a percentage.
![](/multimedia/uploads/images/estriccion_alambre_vinco.jpg)
Ovality
This is a determining factor in the shape of round wires and it is indicative of the uniformity of the diameter.
This is in addition to the diameter tolerance.
![](/multimedia/uploads/images/ovalidad_alambre_vinco.jpg)
* The data contained in this catalogue are for information purposes only and are not under any circumstances, contractual supply conditions. Errors and omissions excepted.