High-speed images of resistance spot welding

Based on Dr. Schmiedgen's dissertation from 1968, we have once again produced half-section recordings of the resistance spot welding process at TU Dresden. Unlike back then, we not only rely on much better camera technology, but can also synchronize the video recording with our measurement data acquisition. Due to the LED exposure in the red frequency range, we can visualize the lens formation spectacularly. We have currently recorded the following material combinations:

• S235 (2mm) - S235 (2mm)
• HX340LAD + Z100 (3mm) - HX340LAD + Z100 (3mm)
• HX340LAD + Z100 (1mm) - HX340LAD + Z100 (3mm)
• X5CrNi18-10 (2mm) - X5CrNi18-10 (2mm)
• X5CrNi18-10 (1mm) - X5CrNi18-10 (2mm)
• S235 (1mm) - X5CrNi18-10 (2mm)

Example

Here is an example shot of S235 (2mm) - S235 (2mm)

Download

Here you can download a PowerPoint presentation where the video recordings with the measurement data (current, resistance, displacement) are embedded. A recording from Dr. Schmiedgen's dissertation is also included.

Further half-section recordings can be viewed under the following playlist on Youtube.

Have fun watching.