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In metal springs, a loss of force occurs under permanent tension and higher temperatures, which is called relaxation. This loss of force increases with increasing temperature and load duration. This loss of force is given as a percentage of the
Exceeds when the spring is loaded Shear stress the permissible value, a permanent deformation occurs, which manifests itself in the reduction of the unstressed length “L0”. This process is called “setting” in spring technology, which is associated with the properties