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Method for welding workpieces made of highly heat-resistant superalloys, including a particular mass feed rate of the welding filler material

Arjakine Nikolai, +10 more
TLDR
In this article, a welding method for welding workpieces made of highly heat-resistant superalloys is provided, which includes generating a heat input zone on the workpiece surface by means of a heat source, feeding welding filler material into the heat input area by a feeding device, and generating a relative motion between the heat source and the feeding device on one hand and the work piece surface on the other hand by a conveying device.
Abstract: 
A welding method for welding workpieces made of highly heat-resistant superalloys is provided. The method includes generating a heat input zone on the workpiece surface by means of a heat source, feeding welding filler material into the heat input zone by means of a feeding device, and generating a relative motion between the heat source and the feeding device on one hand and the workpiece surface on the other hand by means of a conveying device. Furthermore, according to the welding method, the mass feed rate is ≦350 mg/min.

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Apparatuses, systems and methods for three-dimensional printing

Benyamin Buller, +2 more
TL;DR: In this article, the authors present 3D objects, 3D printing processes, as well as methods, apparatuses, and systems for the production of a 3D object.
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Accurate three-dimensional printing

Benyamin Buller, +2 more
TL;DR: In this paper, the authors present three-dimensional (3D) printing methods, apparatuses, and systems using, inter alia, a controller that regulates formation of at least one 3D object (e.g., in real time during the 3D printing); and a non-transitory computer-readable medium facilitating the same.
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Skillful Three-Dimensional Printing

Benyamin Buller, +5 more
TL;DR: In this article, the authors present various apparatuses, software and systems for 3D printing, including a step and repeat energy irradiation process; controlling material characteristics and/or deformation of the 3D object; reducing deformation in a printed 3D shape; and planarizing a material bed.
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Adept three-dimensional printing

Benyamin Buller, +1 more
TL;DR: In this article, the authors provide 3D printing methods, apparatuses, systems, and non-transitory computer-readable medium for real-time manipulation of 3D printers to reduce deformation.
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Three-dimensional printing and three-dimensional printers

Benyamin Buller, +4 more
TL;DR: In this article, the authors present 3D printing processes, apparatuses, software, and systems for the production of at least one desired 3D object using 3D printers.
References
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PatentDOI

Direct selective laser sintering of metals

Suman Das, +1 more
- 01 Jun 2001 - 
TL;DR: In this paper, a method of fabricating a fully dense, three dimensional object by direct laser sintering is disclosed, in which a degased powder layer is dispensed over a target surface and a beam of directed energy melts metallic powder in order to form a solid layer cross section.
Patent

Method for producing monocrystalline structures

Wilfried Kurz, +4 more
TL;DR: In this paper, the surface of the substrate is melted with an energy beam of high energy density from an energy source, such that the speed of solidification and temperature gradient lie in the dendritic crystalline region in the GV diagram, outside the globulitic region.
Patent

High temperature resistant part, made of single-crystal or polycrystalline nickel-base superalloy

Ralf Prof. Buergel, +9 more
TL;DR: A nickel-based super alloy is a monocrystalline structure having an isotropic distribution of the orientation of the grain structure as discussed by the authors, which is a super alloy that contains at least 2 wt.% Re and a maximum of 3 wt% Ru.
Patent

High-temperature-resistant, corrosion-resistant coating, in particular for components of gas turbines.

Norbert Czech, +1 more
TL;DR: In this paper, a high-temperature resistant, corrosion-resistant coating, in particular for components of gas turbines, which possesses good corrosion resistant properties at temperatures between 600 and approximately 1150 °C, contains the following elements (in weight percent): 25-40 % nickel, 28-32 % chromium, 7-9 % aluminium, 1-2 % silicon, 0.3-1 % yttrium, the remainder cobalt, at least 5 % and unavoidable impurities.
Patent

Rhenium containing protective coating protecting a product against corrosion and oxidation at high temperatures

Werner Stamm
TL;DR: In this article, the authors proposed a 1.5-2-wt. protective layer for protecting a component against corrosion and oxidation at high temperatures comprises 0.05-0.7 wt.