Patent ID: 8651362

Claim:
A method of braze joining a first workpiece to a second workpiece, the method comprising the steps of: forming an interior seating region in the first workpiece; forming an interior filler region adjacent to the interior seating region, the interior perimeter of the interior filler region being greater than the inner perimeter of the interior seating region; forming one or more cutout regions in the wall of the interior seating region; thermal shrink fitting an end of the second workpiece into the interior seating region to form a thermal shrink fit region between the outer wall of the second workpiece and the wall of the interior seating region with the one or more cutout regions; applying a filler metal around the outer wall of the second workpiece adjacent to the interior filler region; and heating the filler metal to flow the filler metal into at least a braze region between the outer wall of the second workpiece and the wall of the interior filler region, and at least partially into the one or more cutout regions in the wall of the interior seating region.