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Explosion Welding ProcessThe explosion welding process begins with only the highest~quality materials from the most reputable manufacturers around the world, that meet our clients’ expectations and our own exacting specifications. Let’s look at the explosion welding of two plates as an example. When two plates are being clad, the mating surfaces of both metals (the surfaces facing each other) are ground flat toachieve a smooth finish and prepare the surfaces for the explosion.
The plates are then ready to be assembled into the pack, which locks the plates into position. To build a pack, the base metal, which is the stronger and thicker of the plates, is laid face up. Then the cladding metal, which is the thinner of the two plates, is placed on top. A small gap is left between the base metal and cladding metal.
Next, explosive powder is evenly spread on the cladding (alloy) plate. The amount and exact formulation of the powder are always matched to the types of metal involved.
The explosion is detonated from one edge of the cladding plate and moves across the top of the pack at a uniform speed, which results in a high-pressure collision of the metals. Oxides and impurities are expelled, leaving the plate surfaces metallurgically pure and creating a metallurgical weld between the two metals.
After this process is performed, the newly formed clad is flattened out by a press or, for thinner clad, a series of rollers known as levelers.
Finally, testing is performed, which involves ultrasonic inspection of the weld, mechanical analysis, and physical measurements to ensure the clad meets customer specifications. After the clad passes inspection, it’s shipped to the customer.
Advantages of High Quality Explaosive Bonding
-High tensile and shear strength
-Resistance to interface breakdown
-Metallurgically bonded interface
New Improved Explosive Bonding Plate / Explosion Welding