Patent Number: 6,168,072

Title: Expansion agent assisted diffusion bonding

Abstract: The present invention provides a method of diffusion bonding a first article containing a thermally activated expansion agent to a second article. The first article and the second article are placed adjacent to each other at a bonding area. The first article and the second article are constrained such that contact is maintained between the first article and the second article at the bonding area. The constrained articles are then heated at a temperature that causes the first article to expand, creating pressure between the articles at the bonding area.

Inventors: Schwartz; Daniel S. (University City, MO), Deuser; Donald A. (Florissant, MO)

Assignee: The Boeing Company

International Classification: B23K 20/02 (20060101); B23K 35/38 (20060101); B23K 35/22 (20060101); B23K 020/00 (); B23K 028/00 (); B23K 031/02 (); C22B 001/00 (); C22B 001/14 ()

Expiration Date: 01/02/2018