What is Explosion Welding - Definition

Explosion welding involves the joining of materials by pushing them together under extremely high pressure, which is generated by a controlled detonation. The energy from the impact plasticizes the materials, forming a weld, even though only a limited amount of heat is generated.

Explosion welding involves the joining of materials by pushing them together under extremely high pressure, which is generated by a controlled detonation. The energy from the impact plasticizes the materials, forming a weld, even though only a limited amount of heat is generated. High-ductility metals that have a facecentered cubic arrangement of atoms and do not work harden quickly are best suited to the process. These include aluminum and copper, stainless steel, gold, silver, and platinum. Typical geometries produced include plates, tubing and tube sheets. The process is commonly used for welding dissimilar materials, including bonding aluminum to carbon steel in ship hulls and stainless steel or titanium to carbon steel in petrochemical pressure vessels. A disadvantage of this method is that extensive knowledge of explosives is needed before the procedure may be attempted safely.

References:

Materials Science:

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Welding

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