Self-steering system for guiding a moving induction coil during

Details Self-steering system for guiding a moving induction coil during Self-steering system for guiding a moving induction coil during

1995-11-28

1998-07-28

Hoang, Tu B.

Electric heating

Inductive heating

Specific inductor configuration

219674, 219676, 219677, 219633, H05B 636

Patent

active

057865760

ABSTRACT:
Thermoplastic welding is an emerging technology targeted at significantly reducing the manufacturing cost of aerospace structure by eliminating fasteners and the touch labor associated with fasteners to prepare, install, and inspect the assemblies. Quality welds are highly dependent upon achieving appropriate temperatures everywhere along the bond line. The present invention is a system that uses a secondary coil to detect misalignment between the induction coil and the susceptor which would result in an excessive bond line temperature (in portions of the weld) and to provide control signals for the coil or parasitic compensation to avoid the overheating.

REFERENCES:
patent: 4271345 (1981-06-01), Palmer et al.
patent: 4343209 (1982-08-01), Moelbert
patent: 4489123 (1984-12-01), Schijve et al.
patent: 4671470 (1987-06-01), Jonas
patent: 5039970 (1991-08-01), Cox
patent: 5240542 (1993-08-01), Miller et al.
patent: 5248864 (1993-09-01), Kodokian
patent: 5444220 (1995-08-01), Hansen et al.

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