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This paper compares single-phase AC and mid-frequency DC (MFDC) resistance spot welding processes through experiments and finite element simulations. The findings indicate that MFDC generally produces larger welds and consumes less energy than AC for the same weld size, especially at lower welding currents. The study highlights the differences in efficiency due to contact resistance behavior and electrical inductance in the AC process.

Author

mukesh kumar vgufet0351

Language

EN