Cladded Plates
Explosion cladding is a process wherein a cladding plate is positioned over the backer plate with a small gap. Specially made explosives are spread on tap of the cladding plate. On detonation the cladding plate is accelerated towards the backer plate and collides with it at a high velocity. This collision takes place progressively from one end of the plate to the other In micro seconds.
This acceleration causes a unique phenomenon of progressive turbulence at the interface and removes the contaminating surface films like oxides and gases, creating a strong metallurgical bond at the collision point of the two surfaces.
The thickness of explosive layer, its propagation characteristics as well as stand off distance and the collision angles are carefully controlled to produce uniform and strong metallurgical bonding all over the plate. It is basically a solid-state pressure bonding process.
| Clad Layer | Stainless Steel, Duplex, Titanium, Zirconium, Tantalum, AI-Bronze, Nickel, Nickel Alloys, Aluminium, Copper, Copper Alloys |
| Base Material | Carbon Steel, Stainless Steel, Alloy Steel, Copper, Aluminium |
Cladding on both sides of a backer metal with the same/different cladding metal is possible. Even multilayered clad composites are possible.
Certain Special Metal clad products can be further rolled/extruded into thinner gauges and can be considered when technically feasible and quantities are adequate.
Advantages
- Guaranteed strong Metallurgical bonds
- Wide range of metal combinations
- Economic use of scarce and dearer metals
- Wide range of sizes and composite thickness
- Custom made products
- Adoption of conventional fabrication procedures
- Extremely low electrical metal properties
- Retention of individual metal properties
- Good heat transfer
- Short processing times