High-speed polymer-to-metal direct joining system and method
AssigneeThe Regents of the University of Michigan
InventorsFengchao Liu, Pingsha Dong
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Abstract
A method of directly joining a polymer to a metal along a joint interface through the formation of C—O-M chemical bonds, where M represents an element in the metal to be joined. The method includes heating the metal to a predetermined temperature above a glass transition temperature of the polymer and less than a flash ignition temperature of the polymer and less than a metal melting temperature of the metal; and applying force to the joint interface of the metal and the polymer to generate intimate atomic contact between the metal and the polymer to create C—O-M chemical bonds between the metal and the polymer.
Claims13
A method of directly joining a polymer to a metal along a joint interface through the formation of C—O-M chemical bonds, the method comprising:
- heating the metal to a predetermined temperature above a glass transition temperature of the polymer and less than a flash ignition temperature of the polymer and less than a metal melting temperature of the metal;
- applying force to the joint interface of the metal and the polymer via a tool thereby generating intimate atomic contact between the metal and the polymer to form the joint interface comprising substantially C—O-M chemical bonds between the metal and the polymer;
- and
- reducing the temperature of the metal below the polymer melting temperature before 5% of the polymer has pyrolyzed.
Dependencies are inferred from the claim text.