2,808
edits
Changes
→5.1.7.1 Spring Bending Limit
Important for the usage as spring contact components are besides mechanical strength and electrical conductivity mainly the typical spring properties such as the maximum spring bending limit and the fatigue strength as well as the bendability. During severe thermal stressing the behavior of spring materials is determined by their softening and relaxation. The following briefly describes these material properties.
====<!--5.1.7.1 -->Spring Bending Limit====
The spring bending limit is defined as the boundary condition under which a standar-dized spring sample retains a deformation of 0.05 mm after initial bend stressing and subsequent force removal. The measurement is performed according to the standard EN 12384. The spring bending limit is strongly dependent on the direction of stressing with regard to the strip rolling orientation <xr id="fig:Direction_dependence_of_the_spring_bending_limit"/> <!--(Fig. 5.38)-->. Higher values are obtained if bending is perpendicular to the rolling direction as compared to parallel. This has to be considered when designing contact springs.
<figure id="fig:Direction_dependence_of_the_spring_bending_limit">
