Electromagnetic Pulse Forming (EMPF) & Coil Geometry Calculator
Calculate electromagnetic skin depth ($\delta$), peak magnetic Lorentz pressure ($P_{\text{mag}}$), high-velocity sheet deformation impact speed ($V_{\text{impact}}$), and strain formability extension percentage for aluminum, copper, and advanced high-strength steel (AHSS) pulsed electromagnetic forming.
1. Input Parameters
2. Calculation Results
3. Geometric Visualizer
Tooling & Vector Prepress Engineering Notes
1. Electromagnetic Skin Depth Physics: For high-efficiency magnetic Lorentz repulsion, the skin depth $\delta = \sqrt{\frac{\rho}{\pi f \mu}}$ should be less than the sheet metal thickness ($t \ge 1.5 \cdot \delta$), preventing magnetic flux leakage.
2. Hyperplastic High-Velocity Forming: At deformation speeds of $100–300\text{ m/s}$ (strain rates $\dot{\varepsilon} > 10^3–10^4\text{ s}^{-1}$), inertial stabilization delays necking, boosting sheet formability by 200–300% over quasi-static press forming.
3. Flat Spiral Actuator Coil DXF Geometry: EMPF driver coils require Archimedean spiral vector paths with uniform inter-turn spacing ($0.8–1.5\text{mm}$) insulated with epoxy-impregnated polyimide.