DURING the first world war it was observed that when armour plating was hit by shrapnel some of the bits not only embedded themselves into the metal but ended up welded to it, a process that normally takes a great deal of heat. Laboratory tests later showed that if one material is accelerated fast enough into another they become plastic at the point of contact and fuse together, even at room temperature. This led to a process called explosive welding which, as its name suggests, uses chemical ex...
DURING the first world war it was observed that when armour plating was hit by shrapnel some of the bits not only embedded themselves into the metal but ended up welded to it, a process that normally takes a great deal of heat. Laboratory tests later showed that if one material is accelerated fast enough into another they become plastic at the point of contact and fuse together, even at room temperature. This led to a process called explosive welding which, as its name suggests, uses chemical ex...
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