Shot peening is a specialized blasting process that bombards a metallic work piece with a round abrasive, typically steel shot, glass beads, or ceramic shot, thereby compressing the surface. This compression can greatly improve the strength and fatigue life of the part. An analogy would be the blacksmith that hammers a sword to increase its strength.
Parts that are commonly shot peened include:
- Valve Springs
- Suspension Springs
- Leaf Springs
- Torsion Bars
- Connecting Rods
There are many others. Shot peening has the potential to improve the service life of nearly any metallic work piece that is subject to repeated stresses.
To work properly, however, shot peening requires more exacting controls over media velocity, abrasive flow rates, work piece exposure to the blast, and abrasive size and shape, than normal blast cleaning operations. Because of the need for these strict controls, shot peening equipment is almost always automated so that the process is consistent and repeatable.
Surface Preparation can provide a wide variety of wheel blast or air blast shot peening equipment that include PLC controls, integral media screen separation, shot flow monitors, and other components necessary for a successful peening operation. Contact us today for help.