Induction Pressure Welding
Induction pressure welding heats metal edges via high-frequency induction and presses them together mechanically. This enables fast, reproducible welding operations.
Physical-Chemical Mechanism of Action
High-frequency electromagnetic induction generates an electric current in the workpiece edge, which flows through the metal conductor. This leads to strong heat buildup at the edges. In parallel, mechanical pressure is applied to the weld, pressing and joining the materials together.
Metallurgical Relevance & Risks in Welding
Induction pressure welding is especially suitable for thin sheets. It reduces post-weld heat treatment and prevents cracking or hot cracking. However, insufficient pressure can lead to poor joints, while too much pressure can damage the material structure.
Workshop Practice & Instructions
For thin sheets, use an induction pressure welding machine with the appropriate frequency. Ensure the pressure on the weld is accurately set (typically between 50 and 100 N/mm²). Post-weld heat treatment can be reduced since the mechanical pressing already creates a good joint. Monitor temperature and pressure continuously for optimal results.