Compression springs, due to their spiral geometry, are more difficult to strengthen than flat surface springs. In addition, the strengthening effect of the cross section of the compression spring must be strictly evaluated to fully understand the resistance of the circular spring to fatigue fracture.
The compression springs are individually fed into the shot blasting chamber through a continuous conveyor chain system. The shot blasting chamber is equipped with a set of parallel rollers. At the same time of strengthening, the rollers roll continuously, driving the compression springs to move forward while rotating. This way of rotation allows the high-speed pill flow to pass through each ring of the compression spring and hit the metal surface of the inner ring, where it is the most concentrated part of the compression spring.
For applications with high capacity requirements, choose a strengthening device that can spray two compression springs at the same time. The latest research and development results are based on the original shot blasting equipment, which incorporates multiple nozzles for more targeted and concentrated firepower shot peening in specific areas of the compression spring (please stress concentration).