Dissimilar Brazed Joints Between Steel and Tungsten Carbide

International Conference on Innovative Research - ICIR Euroinvent 2017

Voiculescu, I.^1 ; Geanta, V.^1 ; Binchiciu, H.^2 ; Iovanas, D.^3 ; Stefanoiu, R.^1

Politehnica University of Bucharest, 313 Splaiul Independenei, Bucharest

060042, Romania^1

S.C. Sudotim AS S.R.L., 30 Mihai Viteazu Boulevard, Timioara, Romania^2

Transilvania University of Brasov, 29 Eroilor street, Braov

500036, Romania^3

关键词: Dissimilar joints;    Filler materials;    Induction joining;    Joining process;    Melting range;    Metallographic analysis;    Optical and electron microscopies;    Short periods;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/209/1/012021/pdf
DOI  :  10.1088/1757-899X/209/1/012021

来源: IOP

【 摘 要 】

Brazing is a joining process used to obtain heterogeneous assemblies between different materials, such as steels, irons, non-ferrous metals, ceramics etc. Some application, like asphalt cutters, require quick solutions to obtain dissimilar joints at acceptable costs, given the very short period of operation of these parts. This paper presents some results obtained during the brazing of dissimilar joints between steel and tungsten carbide by using different types of Ag-Cu system filler materials alloyed with P and Sn. The brazing techniques used were oxygen-gas flame and induction joining. The brazing behaviour was analysed in cross sections by optical and electron microscopy. The metallographic analysis enhanced the adhesion features and the length of penetration in the joining gap. The melting range of the filler materials was measured using thermal analysis.