Tailored susceptors for induction welding of thermoplastic
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United States of America Patent
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Mar 19, 1996
Issued Date -
N/A
app pub date -
Aug 5, 1994
filing date -
Oct 18, 1991
priority date (Note) -
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status (Latency Note)
Importance
Abstract
To obtain more uniform heating across the susceptor when welding composite parts using induction heating, we create edge regions of lower absolute impedance or a lower longitudinal impedance than the transverse impedance to counterbalance the higher current density and current that occurs near the edges. We achieve lower impedance at the edges by altering the aspect ratio (length/width) of openings in the susceptor, by folding the susceptor over onto itself, or both. Uniform heating is important to obtaining a uniform, consistent weld on which aerospace designers can rely.
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