Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 15 of 15 for “"info:eu-repo/classification/ddc/670"”.
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Strukturierungsmethoden als Basis für die Einführung von qualitätsorientierten Leitsystemen in der textilen Prozesskette
… for the achievement of this target: a reliable information network connecting all the departments and management levels, a clear leadership model able to indicate which data is to be shown at what time and which position and reliable process control systems to record the data necessary for the …
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Benchmarking von Entwicklungsbereichen im Maschinenbau
As an essential source of new products and with a large leverage on product and production costs, R&D-areas have substantial influence on enterprise success. However, in industrial practice there is a lack of closed and practicable instruments to align and improve this important enterprise area …
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Charakterisierung eines neuen, entgasungsarmen und verbrennbaren Formstoffes für Gießereianwendungen : Kohlenstoff AeroSande
Today’s product requirement for the foundry industry are castings of high quality combined with a high productivity and low ecological impact. Therefore research concentrates on solutions of long known problems, like an easier removal of complex or ceramic cores increasing thus the productivity and …
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AeroSande - ein neuer Formstoff für Geißereianwendungen
In the present work, organic aerogels are used as a new binding material for mould and core production in foundry application. The work is motivated by the problems occurring during the mould and core removal in aluminium casting. In contrary to steel and iron casting the low casting temperatures …
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Abscheidung und Charakterisierung von PECVD-Aluminiumoxidschichten
… of a-alumina at lower substrate temperatures is reported: the formation of Alpha-alumina thin films at 580ºC substrate temperatures. The results are present in the form of a diagram correlating the phase formed with the substrate temperature and the cathode power density. Finally, the ion energy …
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Simulation des Erstarrungsprozesses und des Inline-Walzens von im Strang gegossenen Stahlknüppeln mit flüssigem Kern
In order to investigate the influence of mechanical soft reduction of steel billets with liquid core on the internal quality of billets, casting and soft reduction experiments were carried out. Moreover, the temperature, stress and strain fields in billets were calculated with the finite Element …
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Qualifizieren des Laserstrahl-Auftragschweißens von BLISKs aus Nickel- und Titanbasislegierungen
The subject of this dissertation is the development and improvement of Laser Metal Deposition (LMD) with regard to repair of BLISKs out of Nickel and Titanium base alloys. Defect and oxidation free LMD of Nickel and Titanium base alloys is guaranteed by use of new developed powder and shielding gas …
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Automated Design of Additive Manufactured Flow Components
… channels, channel branches, guiding vanes, and reinforcement ribs. These design elements are organized using a hierarchical structure. This modeling approach allows to capture the hierarchical nature of complex nozzles and automate the design creation and nesting of multiple flow channels. Study …