B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
78/44
B23K 20/08 (2006.01) B23K 20/227 (2006.01)
Patent
CA 1296552
11 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 men- tioned 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 arran- ged 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. Figures 1 and 2 for publication.
578144
Exploweld Ab
Fetherstonhaugh & Co.
Persson Ingemar
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