This commonly used process produces hollow lightweight Jewelry such as Creole
earrings and brooches as well as Jewelry findings such as clasps. Thin sheet or
strip of the carat gold is placed between a series of matching halves of
hardened steel dies and blanked out and then progressively punched to form the
required 3-dimensional shapes. Generally matching pairs of stamped pieces are
soldered together to form the completed Jewelry piece and then polished. Coins
and medals are also made by this technique.
In the old technology, parts were stamped out in a sequence in separate steel
die sets, each step deforming the component further towards the desired end
shape. Typically hand operated or steam powered screw presses or fly presses
would be used. Today, complex 'progression' die sets are used in which the strip
moves in stages through a single die and emerges in the final shape. Modern
hydraulic presses are used, although some hand-operated presses are still to be
found in small workshops. Manufacture of the steel dies is an expensive
operation and so stamping is only done where high numbers of pieces are being
produced.
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