Reheating before metal forming
Induction heating for metal processing

The French steel industry produced around 18 million tonnes of steel in 1993, of which 13 million tonnes were flat products. By definition, a flat product is thin (generally less than 50 mm) compared to other dimensions.

Today, almost 70% of the world's steel is produced using the continuous casting technique, resulting in semi-finished products, either in the form of slabs for flat products, or blooms or billets for long products. The semi-finished product chain is shown in figure 2 .

On leaving the continuous caster, the semi-finished products reach a temperature of between 600 and 800°C; their thickness...