Method for producing a jig for tubes having bent sections, and resulting jig
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United States of America Patent
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Oct 17, 2017
Issued Date -
Sep 17, 2015
app pub date -
Oct 10, 2013
filing date -
Oct 25, 2012
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Abstract
The invention relates to a method for producing a jig (M) for the thermal forming and/or inspection of a tube (T) of neutral axis (x) and comprising a bent sections (c1-c3) connected by straight sections (d2-d3). The method consists in producing n individual jigs (M1-M3) each comprising a section of duct (18, 18′) of planar neutral axis (χ) for guiding a tube segment formed by one of the n bent sections of the tube (T) and by a predetermined length of each of the straight sections (d1-d4) extending from said bent section, said predetermined length corresponding to either all or part of the length of the straight section; and assembling the n individual jigs (M1-M3) with the sections of guide duct in the continuation of one another and with a relative orientation of the individual jigs adapted to provide a relative orientation between the n planes defined by the neutral axis (χ) of the n sections of guide duct (18, 18′) that is identical to the relative orientation between the n bending planes (P1, P2, P3) defined by the n bent sections (c1-c3) of the tube (T).
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