Effects of Shot Peening on the Fatigue Strength of Parts Produced by Additive Manufacturing

Author:  Darko Malnarič
Source:  The Shot Peener magazine, Vol 35, Issue 2, Spring 2021
Doc ID:  2021016
Year of Publication:  2021
Abstract:  
WITH MORE THAN 55 YEARS of experience, FerroECOBlast® Europe, based in Dolenjske Toplice, Slovenia, is one of the global leaders in the field of surface treatment technologies. What makes them stand out from the crowd is their dedication to research and development. This study, performed by their R&D department in collaboration with the Jožef Stefan Institute—the leading scientific laboratory from Slovenia and Joanneum Research Centre from Graz—explores the effects of shot peening on additively manufactured parts. Due to the outstanding growth of the additive industry (also known as 3D printing), new guidelines and requirements appeared in the surface treatment of unconventional structures and materials. Cold micro-forging, better known as shot peening, is a well-known surface treatment process, commonly used on machine parts in the most demanding industries such as aerospace and automotive. Shot peening improves the technological properties of machine parts and increases their lifetime.