Patent ID: 6168069
Filing Date: 2001-01-02
Classification: B23K,G01F,Y10T

Abstract:
A method for forming a compound arrangement by brazing a first component of titanium to a second component of unplated stainless steel using silver-copper-palladium brazing alloys, wherein the first component of titanium is provided with a cylindrical first end which has a smaller outside diameter than an adjacent main portion whose external surface is, at least in part, a first surface to be brazed; the second component is a cylindrical steel sleeve whose inside diameter is equal to the outside diameter of the main portion of the first component and whose internal surface is, at least in part, a second surface to be brazed the second surface being unplated stainless steel; a silver-copper-palladium brazing alloy is placed around the first end of the first component; the steel sleeve is slipped over the main portion of the first component; the first and second components and the silver-copper-palladium brazing alloy are heated in a vacuum or an inert gas until the silver-copper-palladium brazing alloy melts and wets the surface to be brazed; and the first and second components and the brazing alloy are then cooled so that the steel sleeve exerts compressive stress on the first surface of titanium and is brazed directly to the first surface of titanium; whereby the compound arrangement is formed.