Does the compression springs need to be annealed after calibration?

Does the compression springs need to be annealed after calibration?

Compression springs is the most common type of spring. For our technology, it is also a spring type that needs to pay attention to many details. Before and after tempering, before and after correction, before and after the size of flattening, all need to be explained to the attention of the repairer. Come today Let's talk about whether the compression springs needs annealing after calibration.

       Whether the compression spring sneeds to be subjected to stress relief annealing after correction. Compression springs correction is to use a certain tool to make the compression springs produce local plastic deformation to meet the requirements specified on the drawing. On the one hand, the compression springs correction improves the dimensional accuracy, on the other hand, it often has an adverse effect on the performance of the spring and even brings damage. In order to reduce the influence of correction on the performance of the compression springs, stress relief annealing treatment should be carried out after correction. After the heat treatment, the main spring of the effective ring after heat calibration should also be subjected to stress relief annealing; the compression springs that is repaired by grinding the support ring plane or hot pressing (the temperature is at least 20°C lower than the actual tempering temperature) may not be subjected to stress relief annealing, but only Spring characteristic measurement.