Copper core cooking griddle and method of making same

Details Copper core cooking griddle and method of making same Copper core cooking griddle and method of making same

1999-02-18

2000-08-29

Zimmerman, John J.

Metal fusion bonding

Process

Using explosive energy

228193, 2282353, B23K 2004, B23K 2008, B23K 20227, A47J 3706

Patent

active

061095044

ABSTRACT:
A composite griddle plate is provided having a heavy copper core which is diffusion bonded to one or more outer plates of stainless steel, carbon steel or titanium. The copper cored composite is made by explosion bonding the outer metal plates to the copper core to achieve diffusion bonding followed by multi-pass, small, incremental reduction passes in a hot rolling mill conducted within a narrowly controlled temperature range falling within the overlapping hot working range of the copper core and the dissimilar metal of the outer layers.

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