SPRING MANUFACTURE

A specific feature of the RDS Shot Peening System is its ability to handle coil springs in a wide range of dimensions including small parts and to treat them individually under uniform and defined conditions in a continuous process. With suitably adapted loading and unloading devices, the shot peening process can be integrated into continuous production lines.

Operating principle

In RDS-Mini Shot Peening Systems, continuously rotating, single work pieces travel on horizontal rollers through the machine. The machines are designed to strengthen valve springs and suspension springs by shot peening at a throughput rate of more than 5,000 springs an hour, depending on relevant requirements. The springs are fed to the machine individually on a straight-line conveyor or other loading systems and then move through the blasting zone on continuously rotating horizontal rollers. Axial movements are effected by cams attached to chains.
Inside the blasting zone the springs are properly guided by adjustable baffle plates which also serve to focus the shot stream on the work pieces for optimal exposure within the “hot spot” of the blast pattern. The parameters of the shot peening process, such as shot quantity, blast wheel speed/throwing velocity, the speed at which the work pieces rotate and the dwell time, can all be regulated to suit the requirements of a specific type of work piece. It is this definition of all treatment parameters that ensures process-safety at all times. Process parameters can be recorded in the control system and retrieved when necessary.

Conclusion

– Shot peening based on the throughput principle is simple and process-safe, suitable for automatic production lines with a continuous work piece flow without intermediate storage.
– Individually adjustable parameters ensure work piece-specific shot peening of the desired quality.
– Automatic systems of high performance and manufacturing consistency reduce production costs.
– A solid machine structure and high-quality machine components ensure long service life and low maintenance costs.

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