Method for manufacturing articless of jewellery
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United States of America Patent
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N/A
Issued Date -
Jan 13, 2005
app pub date -
Aug 23, 2004
filing date -
Jul 11, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Method for manufacturing an article of jewellery, which comprises a step involving manufacture of a first hollow element in tubular form, said element being made of precious metal or a precious metal alloy and intended to act as a lining; a step involving preparation of a second tubular element made of metal or metal alloy and intended to act as a core for said first element in tubular form; a step involving coaxial joining together of the two elements by means of arrangement of a layer of solder in between so as to obtain a tubular assembly which is then subject to a first drawing step aimed at compressing the first element onto the second element; this is then followed by a step involving brazing of the tubular assembly so as to melt the layer of solder and fix together the two elements before a second drawing step for reducing the thickness of the brazed tubular assembly to the desired value.
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