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Title

Residual stress variation analysis due to changes of rake angle, edge radius and friction in orthogonal machining of Aluminum ۶۰۶۱-T۴ using finite element method

Year: 1400
COI: METEC04_008
Language: EnglishView: 39
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Authors

Mehrdad Ghatrehnaby - Islamic Azad University, Pardis Branch

Abstract:

Machining and chip formation is a complicated computational problem and is particularly important in the design of new tools and specification of conditions for their use. This study presents a finite element simulation of continuous chip formation in orthogonal machining of an aluminum alloy embedding Johnson cook plastic model in order to analyze the effects of rake angle, edge radius and friction variation on residual stress and plastic strains on the machined surface. A ۳D model using finite element ABAQUS/EXPLICIT general code is created while Jonson Cook damage model is employed to simulate chip separation. The simulations show that generally the residual stress on the surface is slightly smaller than the residual stress right beneath the surface which can be explained by more degrees of freedom on the machined surface. Moreover, as we move away from the surface the residual stress reduces drastically. The simulations also demonstrate that the residual stress increases as the friction coefficient increases and the nose radius gets larger values, while it decreases as the rake angle increases.

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This Paper COI Code is METEC04_008. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/1259698/

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Ghatrehnaby, Mehrdad,1400,Residual stress variation analysis due to changes of rake angle, edge radius and friction in orthogonal machining of Aluminum ۶۰۶۱-T۴ using finite element method,Fourth Conference on Technology Development in Mechanical and Aerospace Engineering,Tehran,https://civilica.com/doc/1259698

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Type of center: Azad University
Paper count: 1,292
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