Patent ID: 6527165
Filing Date: 2003-03-04
Classification: B23K,F05B

Abstract:
In a method for manufacturing an article, including an environmental resistant coating, from a plurality of uncoated members assembled together with a brazing alloy at least at a juncture to be joined between the uncoated members and brazed to join the members, the article including a wear resistant material on an article surface portion, the steps of:providing at least one discrete wear resistant preform of the wear resistant material, the preform comprising a combination of the wear resistant material and a first brazing alloy having a first brazing temperature in a brazing temperature range; assembling together the plurality of uncoated members with a second brazing alloy having a second brazing temperature in the brazing temperature range, the second brazing alloy being disposed at least at the juncture between the members, and the wear resistant preform attached to the article surface portion, to provide an uncoated assembly; heating the uncoated assembly at a temperature in the brazing temperature range concurrently to braze the plurality of uncoated members and the wear resistant preform into an uncoated article preform; machining the uncoated article preform to a selected geometry to provide an uncoated machined article; and then, coating the machined article with the environmental resistant coating.