Chalcogenide glass molding advances precision IR optics
A nitride-based coating extends the lifetime of molds by preventing abrasive wear and averting glass adhesion, promising to reduce the cost of manufacturing infrared optics.
Protective coatings for chalcogenide glass molding
Driven by high-priced technical devices such as thermal imaging cameras, molding of infrared glass is recently a rapidly growing market. To ensure an efficient infrared glass molding process, protective coatings are required to prevent the degradation of the molding tools. For this reason, this work investigates the operational capability of protec...
Determination of triacylglycerol composition of Ayvalık and Memecik olive oils during storage by chemometric methods / D...
The aim of present investigation is to discriminate two important Turkish olive cultivars (Ayvalık and Memecik) by studying their triacylglycerol (TAG) compositions during storage (15 months) taken from different orchard in Ayvalık and Aydın region which have a significant potential for olive oil production in Turkey, during 2009 and 2010 harvest y...
Kubisch-kristallines Bornitrid ohne Bindephase als Schneidstoff in der Ultrapräzisions-Zerspanung
Das Ziel der Arbeit ist es, die direkte UP-Zerspanung des im Elektro-Schlacke-Umschmelzverfahren hergestellten Stahlwerkstoffs X40Cr13 mit arithmetischen Mittenrauwerten von Ra = 10 nm ohne eine Werkstoffbeschichtung oder Zusatzausrüstung zu ermöglichen. Als grundlegender Lösungsansatz dient die Substitution des monokristallinen Diamanten durch den...
Embedded high speed optical communication / Insluten optisk höghastighetskommunikation
The telecom industry is today categorized by being able to wirelessly transmit large amounts of data between systems in a short time. A precondition for this is that the PCBs (printed circuit board) being developed and manufactured can handle and distribute large amounts of data internally. Often presented as multiple high-speed links up to 10-28 G...
Silikon im Scheinwerfer - LED-Linse aus Flüssigsilikonkautschuk für Beleuchtungsanwendungen im Automobil
Präzise optische Komponenten durch innovative Werkzeugkonzepte
Influence of the interlayer material selection for PtIr-coatings on the degradation mechanisms for use in Precision Glas...
Thermo-chemical and thermo-mechanical loads act on molding tools during several hundred up to thousand pressing cycles of Precision Glass Molding (PGM). Mainly precious metal physical vapor deposition (PVD) coatings such as platinum-iridium (PtIr) are used to increase the lifetime of molding tools. Using a thin interlayer, the protective coating ad...
Development and ramp-up of automated laser assembly: Final Report of the MANUNET Research Project DeLas
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In order to respond to increasing competitive pressure from low-wage countries on manufacturing companies in Western Europe, competitive assembly systems need to be developed by combining flexibility, autonomy, and productivity. In high-wage countries, this goal can only be achieved by a high level of automation. Furthermore, automation allows for ...
Tribological wear analysis and numerical lifetime prediction of glassy carbon tools in fused silica molding
Precision Glass Molding (PGM) is currently the standard manufacturing process for medium-lot-size fabrication of complex shaped, high-quality lenses. During each molding cycle in PGM, the molding tools experience thermal and mechanical loads. Degradation mechanisms caused by these loads limit the molding tool life. Therefore, acquiring a deeper kno...
