Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1995-01-23
1996-08-27
Yoder, Michele K.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
1562722, 1562724, 156292, 1563801, 1563806, 428188, 428116, 428118, B32B 312, B32B 3120
Patent
active
055497730
ABSTRACT:
Preimpregnated thermoplastic yarn is interwoven around spaced hex mandrels as weft members in a preformed ribbon, which may be folded into layers or cut into sheets for stacking in a honeycomb pattern in preparation for bonding. In block bonding, pressure and heat are applied to an entire fully stacked block to bond the interface facets together and form hex ducts around the mandrels, which must then be extracted, typically individually in a special pneumatic press process. In a preferred layer bonding process certain problems and limitations of block bonding are overcome by bonding each sheet as it is added to a stack buildup. An alternate layer bonding process is disclosed, which is facilitated by magnetic pressing, using electromagnets acting on ferrous mandrels to apply pressure evenly distributed along interfacial facets during thermal fusion bonding. The magnetically pressed layer bonding process is readily automated by disclosed apparatus. Heating and cooling are provided to the mandrels. The sheets used in this method may be either corrugated in a half hex pattern or interwoven with hex passive holding mandrels which may be pushed out and replaced by the machine's aluminum forming mandrels as each sheet is loaded onto the machine.
REFERENCES:
patent: 2821616 (1958-01-01), Spott
patent: 3528867 (1970-09-01), Leatherman et al.
patent: 3617416 (1971-11-01), Kromrey
patent: 3673058 (1972-06-01), Jackson et al.
patent: 3795559 (1974-03-01), Horn et al.
patent: 3915776 (1975-10-01), Kaempen
patent: 4090002 (1978-05-01), Rosenblum
patent: 4541891 (1985-09-01), Leatherman
patent: 4767484 (1988-08-01), Schott et al.
patent: 4822660 (1989-04-01), Lipp
patent: 4935088 (1990-06-01), Mitsuyama
patent: 4957577 (1990-09-01), Huebner
patent: 4961894 (1990-10-01), Yabe et al.
patent: 5131970 (1992-07-01), Potter et al.
patent: 5139596 (1992-08-01), Fell
Henderson John E.
Narasaki John K.
Anderson Terry J.
Hoch Jr. Karl J.
Northrop Grumman Corporation
Yoder Michele K.
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