Researcher:
Akmal, Mohammad

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PhD Student

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Mohammad

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Akmal

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Akmal, Mohammad

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20172

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Researcher Of Publications: search.filters.isAuthorOfPublication.72e3a8ad-7eb7-45f2-b558-588fb0030def

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    Thermal analysis in Ti-6al-4V drilling
    (Elsevier, 2017) Poulachon, Gerard; Ramirez, Christophe; Marcon, Bertrand; Rossi, Frederic; Outeiro, Jose C.; Krebs, Michael; Department of Mechanical Engineering; N/A; Lazoğlu, İsmail; Akmal, Mohammad; Faculty Member; PhD Student; Department of Mechanical Engineering; College of Engineering; Graduate School of Sciences and Engineering; 179391; N/A
    Ti-6Al-4V is commonly used especially in aerospace and biomedical industries. This alloy is known as a difficult-to-cut material. Due to its poor thermal properties, the heat generated during machining processes traps near material deformation zones. This causes detrimental high temperatures for the cutting tools. This article combines the analytical and FEM modeling techniques to estimate the temperature evolution of carbide tools in Ti-6Al-4V drilling. In this article, a novel thermocouple based temperature measurement setup is also introduced. Moreover, the simulated and measured temperatures under various cutting conditions for the drilling of Ti-6Al-4V are presented for the validation.
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    PublicationOpen Access
    Friction coefficients on surface finish of AlTiN coated tools in the milling of Ti6Al4V
    (Elsevier, 2017) Akgun, Ali; Yavas, Caglar; Department of Mechanical Engineering; Akmal, Mohammad; Khavidaki, Sayed Ehsan Layegh; Lazoğlu, İsmail; PhD Student; Faculty Member; Department of Mechanical Engineering; Manufacturing and Automation Research Center (MARC); College of Engineering; Graduate School of Sciences and Engineering; N/A; N/A; 179391
    The main constraints in high performance machining of the titanium alloys are mostly due to the friction induced thermal issues. In thermal analysis, the friction coefficient is the critical parameter for estimating the heat generation at the tool-chip interface. This paper provides a direct approach for determining the friction coefficient from slot milling of Ti6Al4V for uncoated solid carbide end-mills and AlTiN coated tools with magnetic, friction and sandblast finishing techniques. The effects of AlTiN coating and finishing techniques on friction coefficients are investigated.