A Study on Friction Stir Process of Magnesium Alloy AZ31 Sheet

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標題:	A Study on Friction Stir Process of Magnesium Alloy AZ31 Sheet
作者:	Hung Hsiou Hsu Yeong Maw Hwang
貢獻者:	資訊管理系
關鍵字:	AZ31 Alloy Finite Element Method (FEM) FSP HAZ TMAZ
日期:	2007-06
上傳時間:	2010-01-11 11:12:32 (UTC+8)
摘要:	Friction stir processes (FSP) are important for enhancing mechanical properties of metal sheets, such as the tensile strength, the elongation, etc. The stress distribution of the tool pin is affected by the thermo-mechanical characteristics of the workpiece in FSP. Recently, magnesium alloy AZ31 is widely used in machine industries due to the light-weight material property. In this paper, a thermo-mechanical model for FSP using three dimensional FEM analyses is proposed for exploring temperature distributions, strain distributions and stress distributions of the workpiece. The heat generated from the plastic deformation and the friction between the head tool and workpiece is considered as the heat source in the simulation of the FSP process. A commercial finite element code – DEFORM 3D is used to carry out the simulation of the plastic deformation of AZ31 sheets during the FSP. The analytical results of temperature, strain and stress distributions of the workpiece and head tool can provide useful knowledge for tool pin design in FSP
關聯:	Key Engineering Materials 340-341 ： p.1449-1454
显示于类别:	[資訊管理系] 期刊論文

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