Improving the surface quality and mechanical properties by shot-peening of 17-4 stainless steel fabricated by additive manufacturing

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Plastic anisotropy of additively manufactured maraging steel: Influence of the build orientation and heat treatments (2019, background): “The replacement of tensile surface stresses with compressive stresses through shot-peening can assist with the circumvention of premature residual stress related service failures (such as corrosion and fatigue failure) and can enhance the components tribological properties [92].”
High cycle fatigue behavior and life prediction for additively manufactured 17-4 PH stainless steel: Effect of sub-surface porosity and surface roughness (2020, neutral): “, shot peening, vibratory polishing) [58,59].”
A review on the state-of-the-art of surface finishing processes and related ISO/ASTM standards for metal additive manufactured components (2020, background): “…material, size, pressure, velocity etc Ra reduces up to 3 μm Removes balling melts and unsintered powders. complicated geometries cannot be finished (AlMangour and Yang 2016; Peyre et al. 2000) 7 Fluidised bed machining (FBM) Micro ploughing/microcutting Pressure, abrasive size, pulse timing,…”
Additive manufacturing of steels: a review of achievements and challenges (2020, background): “803:30–41 [144] AlMangour B, Yang J-M (2016) Improving the surface”