Resistance welding
Resistance welding – interactive engineering module focused on resistance welding. Learning format: Simulator · Interactive visualisation. Explains the principle, technical relationships and practical use.
Topic overview
Resistance welding creates a joint through electrical current, resistance at the interface, time and electrode force. The basic relationship for heat generation is Q = I² · R · t .
This module integrates the original blocks Spot welding , Projection welding and the process explanation from the introduction for spot / projection / seam welding.
Current may be switched on only after stable force has been established. Hold time after current switch-off allows the nugget to solidify under electrode force.
Zinc and other coatings reduce contact resistance and accelerate electrode wear. In practice, higher current, longer time and more rigorous tip dressing are often required.
What the module covers
- Fundamental principle
- Combined content
- Spot-weld process cycle
- Weld-nugget dimensions and quality
- Coated sheet
- Electrodes and cooling
- Electrode-tip pressure by material
- Principle
Related engineering terms
The module connects these terms with practical engineering explanations:
Continue with the practical module.
Open this topic directly in the interactive WeldScope portal.