Experimental investigation of limit drawing ratio for AZ31B magnesium alloy sheet in warm stamping

Wang, Wurong; Chen, Shichao; Tao, Kuangheng; Gao, Kaixiang; Wei, Xicheng

doi:10.1007/s00170-017-0196-2

Cited by 15 publications

(6 citation statements)

References 23 publications

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“…The products of cylindrical cup shapes are also still widely used in various sheet metal manufacturing industries. Therefore, the developments on this process have been continuously reported in many previous studies on the basis of experimental and FEM works [20][21][22][23][24][25][26][27][28][29]. Some previous studies were carried out to prevent major defects, such as wrinkles, earing, and fracture defects [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the developments on this process have been continuously reported in many previous studies on the basis of experimental and FEM works [20][21][22][23][24][25][26][27][28][29]. Some previous studies were carried out to prevent major defects, such as wrinkles, earing, and fracture defects [20][21][22][23]. In addition, as a common formability indicator of cylindrical cup forming, the limiting drawing ratio (LDR) has been also investigated in many previous studies [24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

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Multi Draw Radius Die Design for Increases in Limiting Drawing Ratio

Phanitwong

Thipprakmas

2020

Metals

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As a major sheet metal process for fabricating cup or box shapes, the deep drawing process is commonly applied in various industrial fields, such as those involving the manufacture of household utensils, medical equipment, electronics, and automobile parts. The limiting drawing ratio (LDR) is the main barrier to increasing the formability and production rate as well as to decrease production cost and time. In the present research, the multi draw radius (MDR) die was proposed to increase LDR. The finite element method (FEM) was used as a tool to illustrate the principle of MDR based on material flow. The results revealed that MDR die could reduce the non-axisymmetric material flow on flange and the asymmetry of the flange during the deep drawing process. Based on this material flow characteristic, the cup wall stretching and fracture could be delayed. Furthermore, the cup wall thicknesses of the deep drawn parts obtained by MDR die application were more uniform in each direction along the plane, at 45°, and at 90° to the rolling direction than those obtained by conventional die application. In the present research, a proper design for the MDR was suggested to achieve functionality of the MDR die as related to each direction along the plane, at 45°, and at 90° to the rolling direction. The larger draw radius positioned for at 45° to the rolling direction and the smaller draw radius positioned for along the plane and at 90° to the rolling direction were recommended. Therefore, by using proper MDR die application, the drawing ratio could be increased to be 2.75, an increase in LDR of approximately 22.22%.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Multi Draw Radius Die Design for Increases in Limiting Drawing Ratio

Phanitwong

Thipprakmas

2020

Metals

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“…In a recent study involving the calculation of limit drawing ratio for AZ31B magnesium alloy sheet in a warm deep drawing process Wang et al [88] investigated the draw ratio by looking at various blank size diameters during the operation as can be seen in Fig. 26.…”

Section: Deep Drawsmentioning

confidence: 99%

A state of the art review of hydroforming technology

et al. 2019

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Hydroforming is a relatively new metal forming process with many advantages over traditional cold forming processes including the ability to create more complicated components with fewer operations. For certain geometries, hydroforming technology permits the creation of parts that are lighter weight, have stiffer properties, are cheaper to produce and can be manufactured from fewer blanks which produces less material waste. This paper provides a detailed survey of the hydroforming literature of both established and emerging processes in a single taxonomy. Recently reported innovations in hydroforming processes (which are incorporated in the taxonomy) are also detailed and classified in terms of “technology readiness level”. The paper concludes with a discussion on the future of hydroforming including the current state of the art techniques, the research directions, and the process advantages to make predictions about emerging hydroforming technologies.

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“…With the increase in energy demands and environmental pressure, many researchers and manufacturers find that declining the weight of a vehicle plays an important role in protecting the environment and improving the efficiency of fuel consumption [1,2]. Declining the weight of a vehicle is the key issue when it is designed in the future.…”

Section: Introductionmentioning

confidence: 99%

Strain Rate and Temperature Effects on Formability and Microstructure of AZ31B Magnesium Alloy Sheet

Xue

Yang

Liu

et al. 2022

Metals

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Magnesium alloys play an important role in lightweight structures, which are extensively used in different industries due to their excellent mechanical and physical properties. In this paper, the formability of the AZ31B magnesium alloy sheet was studied by using tensile tests at different temperatures (from 25 to 250 °C) and strain rates (from 0.017 s−1 to 0.34 s−1). The results showed that the material behaves with positive temperature sensitivity when forming at a temperature lower than 200 °C. The effect of the strain rates on the formability of AZ31B was larger at high temperatures. The metallography of AZ31B at different temperatures and strain rates was observed by OM. The results showed that the partially recrystallized structure was exhibited at a temperature of 150 °C. With the increase in temperature, the approximate complete recrystallization was exhibited at a temperature of 250 °C. The fracture morphology of AZ31B was observed at different strain rates and temperatures by SEM. Additionally, the main fracture pattern was quasi-cleavage at room temperature. However, with the increase in temperature, the fracture pattern was transited from a quasi-cleavage pattern to a ductile fracture pattern. The ductile fracture pattern was the main fracture pattern at a temperature of 250 °C.

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Experimental investigation of limit drawing ratio for AZ31B magnesium alloy sheet in warm stamping

Cited by 15 publications

References 23 publications

Multi Draw Radius Die Design for Increases in Limiting Drawing Ratio

Multi Draw Radius Die Design for Increases in Limiting Drawing Ratio

A state of the art review of hydroforming technology

Strain Rate and Temperature Effects on Formability and Microstructure of AZ31B Magnesium Alloy Sheet

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