Topic
Filler metal
About: Filler metal is a research topic. Over the lifetime, 11152 publications have been published within this topic receiving 86590 citations.
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01 Feb 2003-Metallurgical and Materials Transactions B-process Metallurgy and Materials Processing Science
TL;DR: In this article, the nitrogen absorption by iron, Fe-20Cr-10Ni alloy, and SUS329J1 duplex stainless steel during CO2 laser welding in an Ar-N2 gas mixture was investigated and compared with equilibrium data predicted on Sieverts' law and data on absorption during arc and YAG laser welding.
Abstract: Nitrogen absorption by iron, Fe-20Cr-10Ni alloy, and SUS329J1 duplex stainless steel during CO2 laser welding in an Ar-N2 gas mixture was investigated and compared with equilibrium data predicted on Sieverts’ law and data on absorption during arc and YAG laser welding. The nitrogen absorption during CO2 laser welding is lower than that during arc welding, but higher than that during YAG laser welding. Compared with arc welding, the lesser contact of monatomic nitrogen with the weld pool surface and the higher partial pressure of metal vapor in the keyhole may result in the lower nitrogen absorption during CO2 laser welding, while the very low density of monatomic nitrogen in the atmosphere during YAG laser welding due to the low-temperature plume may lead to the lower nitrogen absorption during YAG laser welding than during CO2 laser welding.
28 citations
TL;DR: In this paper, a TIG arc brazing process with CuSi 3 as the filler metal was used to join galvanized steels and copper filler, and the results showed that a fragmention behavior in some whisker-like intermetallic compounds happens, and that there are two layers of Fe 2 Si and Fe 5 Si 3 formed at the interface of the galvanized steel and the copper filler.
28 citations
Patent•
05 Oct 1935TL;DR: In this paper, a system for controlling the welding and cutting of metals is described, which is a continuation in part of application Serial No. 542,963, filed June 8, 1931.
Abstract: " This invention relates to systems for controlling the welding and cutting of metals, and constitutes a continuation in part of application Serial No. 542,963, filed June 8, 1931. In the fusion welding of metals by means of the oxyacetylene flame or the electric arc, as in production or machine...
27 citations
Patent•
17 Jul 1985
TL;DR: In this article, the authors proposed to obtain high brazing strength even without providing a metallized layer to ceramics by joining at least one kind of Ti and Zr at 1-12-wt% ratio by the total weight to the surface surfaces of a filler metal consisting of a specific ratio of Ag-Ni-Cu alloy.
Abstract: PURPOSE:To obtain high brazing strength even without providing a metallized layer to ceramics by joining at least one kind of Ti and Zr at 1-12wt% ratio by the total weight to a brazing filler metal consisting of a specific ratio of Ag-Ni-Cu alloy. CONSTITUTION:At least one kind of Ti and Zr is joined at 1-12wt% ratio by the total weight to one or both surfaces of the brazing filler metal of the alloy consisting of 45-85wt% Ag, 0.3-8wt% Ni and the balance Cu. The reaction phase of the Ti, Zr and the ceramics is formed at the boundary between the brazing filler metal and the ceramics if the ceramics are brazed to each other by using such brazing filler metal, by which the ceramics are eventually joined strongly. The reaction phase of the Ti, Zr and the ceramics is formed at the boundary between the brazing filler metal and the ceramics and the Ag-Cu-Ni phase rich with Cu and Ni is formed at the boundary between the brazing filler metal and metal if the metal and ceramics are brazed by directing the brazing filler metal joined with the Ti and Zr on one surface toward the ceramic side.
27 citations
Patent•
02 Aug 1973TL;DR: In this article, a high speed stream of water is directed from a nozzle on the welding torch obliquely onto a member or members to be welded to form a flared-out curtain of water.
Abstract: The invention relates to a welding torch for welding underwater and to a method of underwater welding using the welding torch. A high speed stream of water is directed from a nozzle on the welding torch obliquely onto a member or members to be welded to form a flared-out curtain of water. Gas is injected into the volume enclosed by the curtain of water to create a gaseous atmosphere and welding is carried out in the gaseous atmosphere.
27 citations