FIELD: processes for producing articles with inner cavities by explosion welding method, possibly manufacture of heat exchangers, crystallizers, cores for induction heaters and so on.
SUBSTANCE: method comprises steps of preliminarily filling tubular cavity-forming member with explosion matter; winding prepared cavity-forming member between inner and outer tubular envelopes while preliminarily forming thread on outer surface of inner tubular envelope and on inner surface of outer tubular envelope. Explosion welding process is realized by displacing detonation front along helical line.
EFFECT: reduced cost price of article, simplified assembling procedure.
5 cl, 2 dwg
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