Effects of temperature and driver sheet for magnesium alloy sheet in magnetic pulse forming

Xu, Junrui; Zhou, Yingqi; Cui, Junjia; Huang, Liang; Xu, Zhanping; Li, Guangyao

doi:10.1007/s00170-017-1423-6

Cited by 6 publications

(3 citation statements)

References 20 publications

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“…The neck of the upper sheet is fractured when the stress reaches the fracture stress σ f . The fracture load of mechanical clinched joints F N is calculated as follows as shown in Equation (14).…”

Section: Quality Evaluationmentioning

confidence: 99%

“…The lightweight design can reduce self-weight, enhance power performance, reduce fuel consumption and exhaust pollution and improve the service capability of other accessories [4][5][6][7]. Therefore, aluminium alloy [8][9][10], titanium alloy [11][12][13], magnesium alloy [14,15] and other high-strength [16][17][18], corrosionresistant, impact-resistant, low-density polymer materials, are widely used in the automobile and aircraft lightweight industries [19].…”

Section: Introductionmentioning

confidence: 99%

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Connection of difficult-to-form sheets by clinching process: A review

Wang

Gao

et al. 2022

Materials Science and Technology

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The clinching technology attracted increasing attention in recent years, but its application might be restricted due to the growing employment of materials that are difficult to join and hybrid structures involving different mechanical performance materials. Traditional clinching technology has limitations of strain rate sensitivity, ductility and damage fracture when applied to materials with high strength, low strain-to-failure and low plasticity. However, the ductility and formability of the material represent a limitation for the clinching process. The present study explored some concepts of clinching, such as hole, friction-assisted, laser-assisted, electro-hydraulic, electromagnetically assisted and hot assisted clinching, for the difficult-to-form sheets. The paper includes the description of the deformation mechanism of clinched joints and the analysis of clinched joint performance and applicability.

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Section: Quality Evaluationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Connection of difficult-to-form sheets by clinching process: A review

Wang

Gao

et al. 2022

Materials Science and Technology

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“…Xu et al used AA5052 driver sheet to shape AZ31 sheet. According to their investigation, the driver sheet could rise the forming height and solve the wave problem at lower discharge energy and higher temperature [11]. Liu et al introduced an indirect EMF with an elastic medium between the driver plate and the workpiece to suppress the rebound effect and improve the fittability of the workpiece [12].…”

Section: Introductionmentioning

confidence: 99%

Effect of the Radial Dimension of the Driver Sheet on the Electromagnetic Driven Forming

et al. 2020

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Electromagnetic forming has attracted more and more attention in the advanced manufacturing field as a promising technology to improve the formability of lightweight alloys at room temperature. Electromagnetic forming employs the electromagnetic force between the drive coil and the workpiece to complete the forming. The low conductivity materials such as titanium alloy usually cannot gain enough electromagnetic force to deformation due to the low induced current on the workpiece. The forming performance of low conductivity material can be improved using high conductivity driver sheet which increases the eddy current and the forming force acted on the workpiece. Some efforts to improve and optimize the performance of the electromagnetic driven forming were made. In this study, a copper driver ring for the electromagnetic driven forming of titanium alloy is proposed based on the electromagnetic force distribution. The effect of the radial dimension of the driver ring on the forming result is studied with the numerical simulation model which is verified by the experiment. It is found that the outer radius of the driver ring mainly effects the maximum forming depth, and the inner radius of the driver ring influences the forming profile of the workpiece. The numerical results suggest that the forming depth can be improved and the forming contour can be adjusted while the proposed driver ring is applied in electromagnetic driven forming.

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