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Erschienen in:
2020 | OriginalPaper | Buchkapitel
Effect of Autofrettage on the Properties of the Aluminium Cylinders
verfasst von : Neelkant Patil, Shivarudraiah, D. Amaresh Kumar, Kalmeshwar Ullegaddi
Erschienen in: Intelligent Manufacturing and Energy Sustainability
Verlag: Springer Singapore
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Abstract
The objective of the research work was to design the cylindrical structure, develop the autofrettage system and process for the cylindrical structure of the aluminium vessel. The developed aluminium vessel was characterized by the compression of different orientations of tapers. The developed aluminium vessel was subjected to hydraulic pressurization at 120 MPa using UTM. It was obtained by inserting an oversized EN24 steel mandrill into the vessel which resulted in inducing the residual stresses after removal of the load. The microstructural behavior of autofrettaged material and the residual stress value of aluminium cylinder were more in inner radial surface than that of the outer surfaces. From this, its clearly reveals the increase in the strength, durability and life of cylindrical or spherical were improved compared to non autofrettaged component.