High Power Laser and Particle Beams, Volume. 35, Issue 5, 055003(2023)
Attractive electromagnetic force flanging method for small tube fittings with magnetic field shaper
Figures & Tables(15)
Fig. 1. Structural schematic diagram of suction type electromagnetic force tube flanging device
Fig. 2. Current distribution diagram of flanging system with magnetic field shaper structure
Fig. 5. 2D axisymmetric model diagram of small-size tube flanging system
Fig. 8. Comparison diagram of electromagnetic force vector distribution at the end of tube fittings
Fig. 10. Comparison of changes in magnetic flux density and eddy current density
Fig. 11. Flanging effect under two working conditions at different initial discharge voltages
Table 1. Material parameters and geometric structure parameters of the model
View tableView in ArticleTable 1. Material parameters and geometric structure parameters of the model
object parameter value AA1060 aluminum alloy tube fitting material parameters density/(kg·m−3) 2710 conductance/(S·m−1) 3.76×107 relative magnetic permeability 1 relative dielectric constant 1 Poisson's ratio 0.33 initial yield stress/MPa 98 material parameters of coil and magnetic field shaper (copper) density/(kg·m−3) 8930 conductance/(S·m−1) 5.99×107 relative magnetic permeability 1 relative dielectric constant 1 geometric dimensions of the tube fitting the height of the tube fitting/mm 40 width of the tube fitting/mm 1 inner diameter of the tube fitting/mm 10 outer diameter of the tube fitting/mm 11 geometric dimensions of the coil height of a single turn coil/mm 4 width of a single turn coil/mm 1 inner diameter of the coil/mm 26 outer diameter of the coil/mm 32 the number of turns of the coil 4×6 geometric dimensions of the magnetic field shaper height of the magnetic field shaper/mm 4 inner diameter of the magnetic field shaper/mm 11 outer diameter of the magnetic field shaper/mm 24.5
Table 2. Pulse power system parameters
View tableView in ArticleTable 2. Pulse power system parameters
parameter slow discharge system fast discharge system symbol value symbol/unit value capacitance ${C_{\rm{S}}}$ /μF3200 ${C_{\rm{F}}}$ /μF200 initial discharge voltage ${U_{\rm{S}}}$ /kV8 ${U_{\rm{F}}}$ /kV6.75 equivalent resistance ${R_{\rm{S}}}$ /Ω0.10 ${R_{\rm{F}}}$ /Ω0.09 freewheeling diode ${R_{{\rm{DS}}}}$ /Ω0.02 $ {R_{{\rm{DF}}}} $ /Ω0.02 equivalent inductance ${L_{\rm{S}}}$ /mH0.60 ${L_{\rm{F}}}$ /μH5
Table 3. Displacement of point
A and flange angle of tube fittings under different working conditionsView tableView in ArticleTable 3. Displacement of point
A and flange angle of tube fittings under different working conditionsworking condition Dz/mm Dr/mm θ/(°) without magnetic field shaper 2.94 5.52 38 with flat magnetic field shaper 6.27 7.88 64 with stepped magnetic field shaper 7.60 8.20 90 with trapezoid magnetic field shaper 5.85 7.65 68
Table 4. Flanging angles under two working conditions at different initial discharge voltages
View tableView in ArticleTable 4. Flanging angles under two working conditions at different initial discharge voltages
initial discharge voltage/kV flanging angle without magnetic field shaper/(°) flanging angle with magnetic field shaper/(°) 5.75 25 51 6.00 30 56 6.25 34 64 6.50 36 73
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Shengfei Li, Xianfeng Zhu, Ziwei Liu, Qi Xiong, Zhe Li, Yanxin Li. Attractive electromagnetic force flanging method for small tube fittings with magnetic field shaper[J]. High Power Laser and Particle Beams, 2023, 35(5): 055003
Paper Information
Category: Pulsed Power Technology
Received: Sep. 6, 2022
Accepted: Jan. 2, 2023
Published Online: May. 6, 2023
The Author Email: Li Yanxin (2623994229@qq.com)
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