Patent ID: 8448839

Claim:
A brazing method comprising: providing a first part and a second part, at least a first portion of the first part configured to fit inside a second portion of the second part; preplacing a first self-fluxing braze alloy on one or more of the first portion and the second portion, wherein the first self-fluxing braze alloy is a BCuP alloy; preplacing a non-phosphorous braze alloy on the first self-fluxing braze alloy, wherein the non-phosphorous braze alloy is a BAg alloy; preplacing another layer of the first self-fluxing braze alloy on the non-phosphorous braze alloy; thermally treating at least one of the first portion and the second portion, to create a temperature differential between the first portion and the second portion; inserting the first portion into the second portion; heating at least one of the first portion and the second portion to melt both layers of the first self-fluxing braze alloy and the non-phosphorous braze alloy; and wherein, the first portion is joined by brazing to the second portion.