Production of low-volume aviation components using disposable electromagnetic actuators

Woodward, Steven T.; Weddeling, Christian; Daehn, Glenn S.; Psyk, Verena; Carson, B.; Tekkaya, A. Erman

doi:10.1016/j.jmatprotec.2010.07.020

Cited by 32 publications

(9 citation statements)

References 8 publications

(7 reference statements)

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“…However, there is a lack of information about this approach. The second approach is to design a single-use coil as in [10]. The coil design must be optimized and tailored to the desired application.…”

Section: Coils Optimization Electromagnetic Formingmentioning

confidence: 99%

Review of the Innovative Design of Coils for Electromagnetic Forming Process

Elsayed

Elamin

2020

IJRESM

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This review article aims to deliver a full and comprehensive understanding of the different types of coils including their limitations and methods of improvement. The efficient design of coils has a significant impact on enhancing the quality of the poor formability alloys. This study further discusses the role of the most important parameters that play a vital role in coils design. The scope of this review includes the modern design of coils that are used in several industries alongside their most suitable applications and end products. Moreover, based on the findings of some important studies in the literature, a detailed review on the numerous methods to evaluate coils performance and how to improve coils quality is provided.

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Section: Coils Optimization Electromagnetic Formingmentioning

confidence: 99%

Review of the Innovative Design of Coils for Electromagnetic Forming Process

Elsayed

Elamin

2020

IJRESM

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“…Then, by substituting Equation (8) into Equation (6), the total current density can be changed to Equation (9),…”

Section: Electromagnetic Forcesmentioning

confidence: 99%

Electromagnetic Forming Rules of a Stiffened Panel with Grid Ribs

Tan

Zhan

Gao

et al. 2017

Metals

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Electromagnetic forming (EMF), a technology with advantages of contact-free force and high energy density, generally aims at forming parts by using a fixed coil and one-time discharge. In this study, multi-stage EMF is introduced to form a panel with stiffened grid ribs. The forming rules of the stiffened panel is revealed via analyzing the distribution and evolution of the simulated stress and strain in the ribs and web, where the grid-rib panels were decomposed as the flat panel and two panels with uni-directional ribs (ribs only in X direction or Y direction). It is shown that the forming depth is mainly attributed to the forces on the web, although electromagnetic force is applied on both the ribs and the web, especially, large force on the ribs. The ribs are subjected to uniaxial stress parallel to their directions, and the web is subjected to plane stress in the deformation region. Furthermore, the change of the uniaxial stress characteristic in the X-direction ribs is influenced by the electromagnetic force, reverse bend and inertial effect. The plastic deformation mainly occurs in the Y-direction ribs of the deformation region under a three-direction strain state.

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“…Magnetic pulses forming make local loading of the workpiece easier, and many researchers have also shown that electromagnetic-assisted stamping (EMAS) can reduce or eliminate springback [11][12][13][14][15][16][17]. With EMAS, the sheet is first bent by a punch that moves downwards; then, magnetic pulses are discharged in the bend area by the working coil embedded in the punch.…”

Section: Introductionmentioning

confidence: 99%

“…Other studies have also used electromagnetic forces to improve upon electromagnetic-forming processes. For instance, Woodward et al [16] used disposable actuators to control springback. Hu et al [17] used a uniform pressure coil with a V-shape to perform electromagnetic calibration tests.…”

Section: Introductionmentioning

confidence: 99%

Springback Reduction of L-Shaped Part Using Magnetic Pulse Forming

Cui

Xiao

et al. 2020

Metals

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This study proposes an electromagnetic-assisted stamping (EMAS) method with magnetic-force loading at the sheet end in order to control the springback phenomenon. The new method does not change the structure of the mold and does not generate a magnetic force at the sheet corner compared to traditional EMAS. Thus, the new approach could greatly extend the mold lifespan and could be readily adopted in commercial production environments. The effects of technological parameters, such as the distance between the blank holder and die, discharge voltage, and sheet thickness on the springback phenomenon were analyzed. Our results suggest that tangential stress and elastic strain energy both decrease with the increase of discharge voltage. The simulation method accurately predicted the deformation of the sheet during the quasi-static stamping and dynamic magnetic forming processes. The simulation and experimental results both show that as the discharge voltage increases, the bent angle after springback decreases.

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Production of low-volume aviation components using disposable electromagnetic actuators

Cited by 32 publications

References 8 publications

Review of the Innovative Design of Coils for Electromagnetic Forming Process

Review of the Innovative Design of Coils for Electromagnetic Forming Process

Electromagnetic Forming Rules of a Stiffened Panel with Grid Ribs

Springback Reduction of L-Shaped Part Using Magnetic Pulse Forming

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