Research in Possibilities of Manufacturing Composite Ti-Cu-Ni Brazing Wire
W. Kazana, K. Marszowski
Institute of Non-Ferrous Metals, gen. J. SowiƄskiego 5, 44-121 Gliwice, Poland
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The article presents results of preliminary studies into obtaining a Ti-Cu-Ni braze composite for titanium and its alloys. Dimensions and properties of CuNi50 strip and titanium core wire were specified with regard to requirements for composite constituents' weight proportions: 70%Ti, 15%Cu, 15%Ni. The study determines operating conditions of longitudinal welding of copper-nickel strip to obtain tubes with titanium core. Tests of processing composite Ti/CuNi50 through drawing allowed to define the process parameters necessary to obtain wire of required diameter. Initial tests in brazing properties of composite wire, conducted using flux-free arc brazing method, show proper Ti rod wetting by melting Ti/CuNi composite, which is confirmed by metallographic analysis.

DOI:10.12693/APhysPolA.135.125
topics: brazing of Ti and alloys, brazing composite, drawing