Application of bimetals on wearing elements in industry

The development of new materials and materials and energy-saving production processes utilizing nontraditional energy sources is an important trend of scientific and technical progress. From this point of view, production processes using rather new energy sources, namely, high explosives, to produce new materials as bimetal and multilayer compositions, are advantageous. Explosive welding is a solid state welding process that uses controlled explosive detonations to force two or more metals together at high pressure. The resultant composite system is joined with a high quality metallurgical bond. The amplitude and periodicity of the wave pattern formed during explosive welding can be controlled by adjusting three major parameters: explosive detonation velocity, explosive load and interface spacing. The short duration of explosive welding process and the extremely high pressures and temperatures create, on the one hand, many problems for investigators and technologists, as it is very difficult to control the process. On the other hand, the short duration of contact between the welded materials allows for the welding of metals having quite different properties, and being able to react and form intermetallic compounds.