Abstract:
A device for detecting X-rays radiated out of a substrate surface, said device comprising at least one X-ray detector, a resolver grating and a modulator grating, said resolver grating with at least one opening facing towards said X-ray detector is arranged in front of said X-ray detector. Said modulator grating is provided between said resolver grating and said substrate at a predetermined distance from said resolver grating and said substrate, where said modulator grating having a plurality of openings in at least a first direction, wherein said x-rays from said surface is spatially modulated with said modulator grating and resolver grating.
Abstract:
The present disclosure provides three-dimensional (3D) objects, 3D printing processes, as well as methods, apparatuses and systems for the production of a 3D object. Methods, apparatuses and systems of the present disclosure may reduce or eliminate the need for auxiliary supports. The present disclosure provides three dimensional (3D) objects printed utilizing the printing processes, methods, apparatuses and systems described herein.
Abstract:
The present disclosure provides a method of preparing superalloy metals having a crystallographic texture controlled micro structure by electron beam melting.
Abstract:
The present disclosure provides a method of preparing superalloy metals having a crystallographic texture controlled micro structure by electron beam melting.
Abstract:
The invention relates to the field of electron beam welding and may be used when electron-beam welding structural mate- rials with control and management of the power density of the electron beam directly within the welding process. The method of electron beam welding with operational control of the power density and focus level of the electron beam is differentiated by the fact that it contains stages in which: the electron beam welding is performed with a sinusoidally or linearly oscillating electron beam in the frequency range from 300 to 2,000 Hz; during the welding process, the waveform of the secondary current in the plasma is measured, filtered, and rectified; the filtered-and- rectified or original waveform of the secondary current in the plasma is processed using the synchronous integration method; the magnitude of the delay function, which results from processing the secondary waveform using the synchronous integration method, is measured relative to the wave- form of the current in the deflection coils; the focusing current is controlled while holding the value of the delay function mentioned above at a constant level which corresponds to a specified magnitude of the power density of the electron beam.
Abstract:
Es wird eine Teilchenstrahlbearbeitungsvorrichtung angegeben, die einen Teilchenstrahlgenerator (7), eine Vakuumkammer (101) mit einem evakuierbaren Kammervolumen (V), wobei die Vakuumkammer (101) eine Kammerwand (1) mit einer ersten Öffnung (O1), die in der Kammerwand (1) ausgebildet ist, aufweist, eine erste Abdeckung (2), die dazu angepasst ist, die erste Öffnung (O1) abzudecken und um eine erste Drehachse (C1), die durch die erste Öffnung (O1) geht, gedreht zu werden, und die eine zweite Öffnung (02), die in der ersten Abdeckung (2) ausgebildet ist, aufweist, und eine zweite Abdeckung (3), die dazu angepasst ist, die zweite Öffnung (O2) abzudecken und um eine zweite Drehachse (C2), die durch die zweite Öffnung (O2) geht, gedreht zu werden und den Teilchenstrahlgenerator (7) zu bewegen, aufweist. Der Teilchenstrahlgenerator (7) ist in einer ersten Richtung (Z) in dem evakuierbaren Kammervolumen (V) verfahrbar.
Abstract:
In this method for manufacturing of three-dimensional products out of metal, an electron beam (14) is directed into a vacuum chamber (10), to meet the tip of a wire feedstotk (20). Metal will be continuously melted from the tip of the wire (20) and deposited on a table (16) which moves relative to the point where the beam (14) impinges on the wire tip, so that the metal melted from the wire (20) is deposited in a desired pattern (18) on the table (16) where fit solidifies. Once a layer of a desired area has been deposited, the table is lowered away from the wire feed by a distante equal to the thitkness of the layers being deposited, and a second (and successive) layers are deposited to build up a three-dimensional shape.
Abstract:
This invention concerns a method of generating a spatial map of sensor data collected during additive manufacturing, in which a plurality of layers of powder are selectively melted with an energy beam to form an object. The method comprises receiving sensor data collected during additive manufacturing of an object, the sensor data comprising sensor values, the sensor values captured for different coordinate locations of the energy beam during the additive manufacturing of the object, and generating cell values for a corresponding cell-based spatial mapping of the sensor data. Each of the cell values is determined from a respective plurality of the sensor values extending over an area/volume comparable to an extent of the melt pool or the energy beam spot.