Metal fusion bonding – Process – Using explosive energy
Patent
1988-09-27
1990-05-15
Godici, Nicholas P.
Metal fusion bonding
Process
Using explosive energy
228108, 228109, 228190, F42B 1312
Patent
active
049250841
ABSTRACT:
A method of explosion welding magnesium-alloyed aluminium to high strength material. The invention is characterized in that the magnesium-alloyed aluminium material comprises base material (4) and that the base material is clad or coated with a thin cladding plate (3) consisting of the afore mentioned high strength material, in that an explosive charge (1) is caused to accelerate a drive plate (2) made of a high density material, preferably steel, which in turn is arranged to accelerate the cladding material (3) towards the base material (4), where the amplitude of the pressure generated between the cladding material and the base material is caused to take a value which is so low that the temperature in the whole of the joint surface, or substantially the whole of the joint surface, is below the boiling point of the alloying substances of the aluminium material, while bringing, at the same time, the amplitude or duration of this pressure to such a high level as to produce an impulse which is sufficient to cause the materials to weld to one another, and in that the free surface of the high-strength cladding material (3) is explosion welded, in a later stage, to a base material (6) consisting of steel or some other high strength metal.
REFERENCES:
patent: 3614827 (1969-04-01), Knop
patent: 4146164 (1979-03-01), Anderson
patent: 4612259 (1986-09-01), Meda
patent: 4613069 (1986-09-01), Falke
patent: 4747350 (1988-05-01), Szecket
patent: 4756464 (1988-06-01), Hardwick
Exploweld AB
Godici Nicholas P.
Starkweather Michael William
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