Finite element analysis of magnesium AZ31 alloy sheet in warm deep-drawing process considering heat transfer effect

El-Morsy, Abdel-Wahab; Manabe, Ken‐ichi

doi:10.1016/j.matlet.2005.12.039

Cited by 36 publications

(25 citation statements)

References 9 publications

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“…Recently, warm forming has received much interest and many studies have been carried out particularly on warm deep-drawing processes. [5][6][7][8][9][10] Springback is one of the most critical defects in sheet metal forming, and a considerable amount of time is needed to compensate for this defect. For conventional structural sheet metals such as steel and aluminum, springback characteristics have been extensively studied both experimentally and numerically (e.g., ).…”

Section: Introductionmentioning

confidence: 99%

Springback Characteristics of Magnesium Alloy Sheet AZ31B in Draw-Bending

et al. 2010

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In this study, we carried out a two-dimensional draw-bending test on an AZ31B magnesium alloy sheet at various forming temperatures and blank holding forces, and the springback characteristics of the Mg alloy sheet were systematically examined. The amount of springback decreased with increasing temperature and blank holding force. The decrease in the amount of springback caused by the increase in temperature was much larger than that caused by the increase in blank holding force, which indicated that increasing temperature was much more effective for decreasing the amount of springback than increasing blank holding force. The amount of springback became negligible at 200 C and above. This result was attributable to the following factors: (a) flow stress decreased rapidly as temperature increased, (b) reverse bending on the sidewall arose at 150 C and above, and (c) fine grains due to dynamic recrystallization were formed at 200 C and above. Microstructure evolution during the draw-bending test was also observed with particular focus on twinning, and its effects on springback characteristics were studied in detail.

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Section: Introductionmentioning

confidence: 99%

Springback Characteristics of Magnesium Alloy Sheet AZ31B in Draw-Bending

et al. 2010

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“…In general, the formability of magnesium alloys is effectively improved by increasing temperature with the activation of non-basal slip systems and twinning. Although most studies investigated the formability of magnesium alloy sheets with square or circular deep drawing, several papers on the warm forming of magnesium alloy sheets indicated that the formability of magnesium alloys was significantly improved at temperatures up to approximately 200 C. [3][4][5][6][7][8] Several research papers conducted FE simulation for the warm forming of magnesium alloy sheets [9][10][11][12][13][14][15] using isothermal conditions with PAM-STAMP or non-isothermal conditions with DEFORM, MARC, and ABAQUS/standard. However, few papers have been published on the FE simulations for the warm forming of magnesium alloy sheets using non-isothermal conditions.…”

Section: Introductionmentioning

confidence: 99%

Non-Isothermal Simulation of Warm Circular Cup Deep Drawing Processing of an AZ31 Magnesium Alloy Sheet

Lee

Kim

et al. 2008

Mater. Trans.

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Due to their low density, high specific strength, and electromagnetic interference shielding, magnesium alloy sheets are increasingly used in automotive and electronics industries. However, magnesium alloy sheets are usually formed at an elevated temperature due to poor formability at room temperature. For the industrial use of magnesium alloy sheets, the mechanical properties at elevated temperatures and appropriate forming process conditions need to be developed. In this study, the warm deep drawing process of AZ31 sheets is numerically studied by non-isothermal simulation. The difference between the isothermal and non-isothermal simulation results and the progress of warm forming is also discussed. The drawn depth and thickness distribution obtained from non-isothermal simulation agreed well with experimental results.

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“…The effect of parameters such as forming rate, temperature and friction between a blank-tooling element and blank holder pressure (BHP) on formability of aluminium alloys in warm deep drawing was investigated by Kim et al 22 The thickness variation was maintained by applying large temperature gradient between the die and punch. It was observed that LDR was decreased when blank and tooling were heated to the same temperature, whereas the warm deep drawing of magnesium AZ31 alloy sheet was carried out by El-Morsy and Manabe 23 using finite element analysis (FEA) tool. The heat transfer effect was considered for improvement of drawability and temperature distribution which helps in drawing a blank without thinning.…”

Section: Thinning Effectmentioning

confidence: 99%

A review on effect of thinning, wrinkling and spring-back on deep drawing process

Babu

2018

Proceedings of the Institution of Mechanical Engineers, Part B:

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There are various processes practiced in a market for manufacturing axisymmetrical cup with significant forming depth among which deep drawing process is most prompt. The deep drawing process is a forming process with ongoing interest which will have a major impact on industries in coming years. This article focuses on the current status and potential of future development of technology in the deep drawing process. First, it describes various types of approaches and techniques used in the deep drawing of different materials. This is followed by brief reviews of advantages and limitations of these technologies with its application in industries. The details of these technologies are just referred rather than explaining in detail. The further part of this article focuses on advanced methods for predicting defects like thinning, wrinkling and spring-back in deep drawing process which are mostly responsible for rejection of the components. The opportunity in the development of flexibility in deep drawing process is covered with an observed barrier in the prediction of defects such as thinning, wrinkling and spring-back. The obtained evidence indicates that deep drawing process may not be applicable for all materials, but represents an excellent opportunity in the drawing of multilayer metal and composite material sheets to complex shapes.

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Finite element analysis of magnesium AZ31 alloy sheet in warm deep-drawing process considering heat transfer effect

Cited by 36 publications

References 9 publications

Springback Characteristics of Magnesium Alloy Sheet AZ31B in Draw-Bending

Springback Characteristics of Magnesium Alloy Sheet AZ31B in Draw-Bending

Non-Isothermal Simulation of Warm Circular Cup Deep Drawing Processing of an AZ31 Magnesium Alloy Sheet

A review on effect of thinning, wrinkling and spring-back on deep drawing process

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