论文信息 - Analysis of Electromagnetic Force and Deformation Behavior in Electromagnetic Tube Expansion With Concave Coil Based on Finite Element Method

Analysis of Electromagnetic Force and Deformation Behavior in Electromagnetic Tube Expansion With Concave Coil Based on Finite Element Method

At present, the cylindrical coil is used to generate the electromagnetic force in electromagnetic tube expansion process. The obtained radial electromagnetic force in the end of the tube is less than the one in the middle of the tube for the end effects. Hence, the tube deformation is inhomogeneous in the axial direction. This paper presents a method named electromagnetic tube expansion with a concave coil to obtain more homogeneous deformation. By using COMSOL software, it gives the simulations for the effect of the geometry parameters of the concave coil on the distribution of the radial electromagnetic force and deformation behavior for the given AA6063-T6 tube. Simulations show that the concave coil with suitable parameters can obtain the homogeneous deformation. Furthermore, the homogeneous deformation range obtained by the concave coil is 36 mm, which is better than the obtained range by the cylindrical coil.

[1] Liang Li,et al. Development of Space-Time-Controlled Multi-Stage Pulsed Magnetic Field Forming and Manufacturing Technology at the WHMFC* , 2014 .

[2] Glenn S. Daehn,et al. A uniform pressure electromagnetic actuator for forming flat sheets , 2007 .

[3] Liang Li,et al. Space-Time-Controlled Multi-Stage Pulsed Magnetic Field Forming , 2011 .

[4] Liang Li,et al. Design and Experiments of a High Field Electromagnetic Forming System , 2012, IEEE transactions on applied superconductivity.

[5] Alireza Fallahi Arezoodar,et al. The Effect of Stepped Field Shaper on Magnetic Pressure and Radial Displacement in Electromagnetic Inside Bead Forming: Experimental and Simulation Analyses Using maxwell and abaqus Software , 2017 .

[6] Kai Zhong,et al. Electromagnetic incremental forming (EMIF): A novel aluminum alloy sheet and tube forming technology , 2014 .

[7] A. Tekkaya,et al. Electromagnetic forming—A review , 2011 .

[8] P. C. Saroj,et al. Magnetic field enhancement using field shaper for Electromagnetic welding system , 2015, 2015 IEEE Applied Electromagnetics Conference (AEMC).

[9] Jianhua Mo,et al. Produce a large aluminium alloy sheet metal using electromagnetic-incremental (EM-IF) forming method: Experiment and Numerical simulation* , 2012 .