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Laser/arc hybrid welding process for ferritic steels

Christian Bonnet
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TLDR
In this article, a hybrid laser beam and electric arc welding process is described, where a laser beam, an electric arc, a shielding gas and a consumable welding wire are used to create a weld on a steel work piece by melting the welding wire.
Abstract: 
A method and an apparatus for a hybrid laser beam and electric arc welding process. A laser beam, an electric arc, a shielding gas and a consumable welding wire are used to create a weld on a steel work piece by melting the welding wire. The weld contains 30 to 1000 ppm titanium by weight, at least 0.7% manganese by weight, 50 to 1000 ppm oxygen by weight, and less than 10% nickel. The welding wire is either solid welding wire or cored welding wire, and may contain, in varying percentages: titanium, manganese, iron, nickel, boron, molybdenum, carbon or chromium.

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Hybrid laser arc welding process and apparatus

Daniel Anthony Nowak, +1 more
TL;DR: In this article, a welding method and apparatus for welding workpieces together by conducting a forward hybrid welding process on a joint region that includes a weld seam defined by and between faying surfaces of the workpieces was presented.
Patent

Ultra high-strength welded joint and method for producing same

Shuichi Nakamura, +1 more
TL;DR: In this article, an ultra high-strength welded joint having excellent strength and toughness, which uses a steel sheet having a thickness of 4-12 mm and contains a welded metal that has a martensite single phase structure.
Patent

Hybrid welding repair of gas turbine superalloy components

Yiping Hu, +2 more
TL;DR: In this article, a method for repairing a degraded section of a turbine blade (100), the turbine blade comprising a base material, is described. But this method is based on electro-spark depositing (408) a first material on the turbine blades degraded section to form an intermediate layer thereon.
Patent

Hot-formed previously welded steel part with very high mechanical resistance, and production method

Laurent Cretteur, +3 more
TL;DR: In this article, a welded steel part, with very high mechanical resistance properties, produced by heating, then hot-forming, then cooling at least one welded blank produced by the end-to-end welding of at least first and one second metal sheet at least partially consisting of a steel substrate and a pre-coating consisting of an intermetallic alloy layer in contact with the steel substrate, on which a metallic alloy layer consisting of aluminium alloy or based on aluminium is mounted.
Patent

Hybrid arc/laser-welding method for aluminized steel parts using gammagenic elements and a gas containing less than 10 % of nitrogen or oxygen

Briand Francis, +1 more
TL;DR: In this article, a hybrid laser/arc-welding method using an electric arc and a laser beam that are combined together within a single welding melt to which molten metal is supplied by melting a filler wire, wherein the welding melt is provided on at least one steel part including an aluminum surface coating, and a protective gas is used, characterized in that the filler wire contains at least 3 wt % of one or more gammagenic elements.
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Patent

Laser machining apparatus

Kiyoshi Inoue
TL;DR: In this article, the auxiliary energy generated by an auxiliary energy supply device is applied to a position on a workpiece at a small distance from a point thereof irradiated by a machining laser beam.
Patent

Application of a hybrid arc/laser process to the welding of pipe

Francis Briand, +1 more
TL;DR: In this article, a process for manufacturing a welded pipe from a metal strip having two longitudinal edges approximately parallel to each other, which are brought together so as to come approximately into contact with each other and thus form an unwelded pre-tube, is described.
Patent

Flux-cored welding wire with a low nitrogen content

Christian Bonnet, +1 more
TL;DR: A flux-cored wire for welding shielded by a flow of gas, in particular of the rutile or slag-free type, composed of an outer metal sheath and a central core comprising filling elements, was used in this paper.
Patent

Advanced consumable electrodes for gas metal arc (GMA) welding of high strength low alloy (HSLA) steels

K. Sampath, +1 more
TL;DR: In this article, solid, bare, consumable wire electrodes for gas metal arc (GMA) welding of high strength low alloy (HSLA) steels are described, which require little or no preheat, interpass and post soak temperature controls.
Patent

Steel pipes mfr. - by forming strip into slit tube and welding tube with sides of slit pressed together

Niederhoff, Kurt, Dr.-Ing., Ratingen, De
TL;DR: In this article, steel pipes are mfd. by forming strip starting material to a slit tube and welding the tube, with the sides of the slit pressed together, by the combined application of HF resistance welding and at least one additional focused energy stream of high power density, under gas shielding.