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Optimizing Shot Peening Machines for Compact Components
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Author(s): Gopal V. (KCG College of Technology, India), Bharanidaran R. (Vellore Institute of Technology, India), Mothilal T. (KCG College of Technology, India)and Vignesh Kumar M. (KCG College of Technology, India)
Copyright: 2024
Pages: 16
Source title:
Metaheuristics Algorithm and Optimization of Engineering and Complex Systems
Source Author(s)/Editor(s): Thanigaivelan R. (AKT Memorial College of Engineering and Technology, India), Suchithra M. (SRM Institute of Science and Technology, India), Kaliappan S. (KCG College of Technology, India)and Mothilal T. (KCG College of Technology, India)
DOI: 10.4018/979-8-3693-3314-3.ch007
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Abstract
Optimizing shot peening is a cold-working process employed to generate a compressive residual stress layer and modify the mechanical properties of metals. It involves impacting a surface with a shot with sufficient force to induce plastic deformation. Peening a surface spread it plastically, leading to alterations in its mechanical properties. Its primary application is to prevent the propagation of microcracks from the surface. Such cracks do not propagate in a material that is under compressive stress. Optimizing shot peening can induce such stress on the surface. In this process, shots are accelerated using centrifugal force generated by a rotating impeller, which directs the shots to impact the surface to be peened. Media choices include spherical cast steel shots, ceramic beads, or conditioned cut wire. Peening necessitates well-graded shots with consistent hardness, diameter, and shape, and a mechanism for removing optimized shot fragments throughout the process is desirable.
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