Explosive Cladding
A detonation joining process where explosives drive two sheets together at an extreme impact angle. The jetting effect creates a wavy metallurgical interface.
Explosive welding is a cold process where you join two metal parts by a controlled detonation. The explosive is placed on top, and the detonation wave presses the plates together at enormous speed. This creates a wave-shaped bond at the interface that is metallurgically clean – the parts don't melt like in normal welding, but are atomically bonded by the pressure.
The process is especially suitable for joining different metals that otherwise can't be welded, like aluminum to steel. The surfaces must be absolutely clean and free of grease. The procedure itself isn't for the normal workshop: you need a controlled blast site, the right amount of explosive, and an experienced blaster. After the detonation, you simply cut the clad plate to size and process it normally.