| Symbol | - |
|---|---|
| Unit | - |
| Attribute-ID | vdi_2230_is_torsion_free_tightening |
| Numeric ID | 13020 |
| Value Type | PMString |
Torsion-free tightening has the effect, for example, that the utilization factor v is calculated out when calculating the permissible assembly preload FMzul (R7), i.e. 100% of the midest yield strength Rp0.2min is used. In addition, this property of the tightening process is also included in the calculation of the safety against exceeding the yield point SF (R8), the maximum surface pressure during installation pMmax (R10) and, if applicable, the required residual clamp load in the interface FKRmin (R2).