Surface treatment specialist FerroECOBlast, together with the Jožef Stefan Institute (Slovenia) and Joanneum Research Centre (Austria), has investigated the effects of shot peening on the fatigue strength of metal 3D printed parts. Surface treatments are an important part of the 3D printing workflow and often happen in the post-processing phase after a build is complete. There are a wide variety of surface treatments available today, each with its own use case. For example, there are treatments for smoothing out part surfaces, boosting mechanical properties like strength, and increasing durability by way of wear, corrosion, or heat resistance. Shot peening, otherwise known as cold micro-forging, is one such surface treatment. Often used on metal parts in critical industries like aerospace or automotive, shot peening works by striking a surface with a granular ‘shot’ material (blast media) to produce a compressive residual stress layer and enhance the mechanical strength of a part…. read more