Simulation of shot peening: From process parameters to.
Key-Words: - Shot peening, Duplex stainless steel, Constitutive model, Numerical simulation. 1 Introduction Shot peening process (SP) is one of the most widely used mechanical surface treatments applied to improve the fatigue behaviour of metallic components. This process generates a cold plastic deformation on the surface of the working piece, by.
D. Proper Shot-Peening for Springs Shot-peening procedures that would be most effective in prolonging spring life have not been established. Generally, specifications of a shot-peening process for a particular spring design depend mainly on the discretion of the project engineer and without assurance that it will be the optimum process.
Shot peening is the most economical and practical method of ensuring surface residual compressive stresses. For applications that require deeper residual compressive stresses than those provided by shot peening, CWST’s laser peening process imparts a layer of beneficial compressive stress that is four times deeper than that attainable from conventional shot peening treatments.
Laser shock peening has emerged as an alternative surface treatment capable of overcoming the limitations of conventional shot peening. During this process, a solid-state laser beam is pulsed on a metallic surface. Shock waves are then generated, traveling throughout the component and causing plastic deformation (Hill et al., 2003).According to Montross, Wei, Ye, Clark, and Mai (2002), the.
As regards shot peening, it is required that the stream of shots should be well concentrated so that the process should be restricted to local impacts ap- plied normal to the surface of the treated products, prompting the change of surface conditions and the conditions of the sub-surface layers.
The peening process is covered by many specifications — the most common one is AMS2430, which replaced Mil-S-13165. Just like a machining process, peening is a measurable, repeatable process that follows exact specifications and procedures. Most OEM shot peen specifications are based on the Mil-S-13165 and AMS2430. Preparing for Peening.
Several peening parameters were ap- plied with Zirshot in a dry process. Then the samples surface roughness, residual stress analysis and SEM pic- tures were made.