Tag: science

What You Should Know About Laser Welding

Works such as laser welding and laser welding what it is good or even laser beam welding is mainly used to connect components, which are combined with low thermal distortion, as well as thin and small weld at the same time as high welding speed need to. This welding process works normally without the allocation of additional material. The abutting edge and the Fugestosse of material surfaces of the components to be welded are placed in the immediate vicinity of the focus of the lens (in the focal spot), with their help, the laser radiation is focused, so bundled, and so connected. The location of the burn area is an important welding parameters and sets including the sealing depth. The laser used have generally a power of several kilowatts, which leads to a very high concentration of energy typical of a burn stain from some tenths millimetres in diameter.

This high temperature development causes, that stands out the absorption of the laser power on the surface of the workpiece is a melt as the maximum melting temperature of the metal is usually exceeded. Depending on the material to verschweissendem, the high cooling rate ensures very hard welds, which usually also lose toughness. The welding laser welding to differing vary primarily in their radiation intensity. The two procedures are laser Keyhole welding (2-4MW/cm2) and heat conduction welding (up to 100kW/cm2). Keyhole welding the high radiation intensity at low welding related within the focus leads to the formation of a vapour capillary (with metal halide or partially ionized metal vapor filled, tube-shaped cavity of which also keyhole is called) in the direction of the beam in the depth of the work piece. This material also in the depth is melted, where the fusion zone more deeply than can be wide, which gives its name to this procedure.

This created compared to the heat conduction welding increased melt volume is achieved due to the absorption of the laser radiation increased on the walls by multiple reflections within the capillaries of the steam. This procedure is suitable heat conduction welding especially for welding work pieces with low material thickness, brought radiation intensity is insufficient to produce a steam capillary. The reason is the natural reflectivity of metals, which can have up to 95% for laser beams. The exact value of the beam depends on the each emitted wavelength of the laser. Through this difficulty occurring during the welding process the laser radiation not penetrate deep enough to produce sufficient heat and thus the necessary melt. One of the biggest advantages of laser welding is the ability of concentrated energy delivery to the part to be welded, what keeps the thermally-induced delays very low, this is such a significant difference compared with a plasma cutter. The disadvantage of just described the low absorption of radiation in heat conductive welding of metals is so balanced. Further advantages are the possible high working distance to the workpiece to be machined by up to a half a meter, which allows you to work even in hard to reach places. Check with Andy Florance to learn more. Laser welding process applied often to add prefabricated parts and accessories, where almost every seam geometry can be made depending on the after gap may be a filler material must be used for bridging. Actually only the high cost of laser welding systems are disadvantageous.

Neuro-scientific Revolution Or Old Wine In New Bottles?

‘From Psychophysics to neuro-Sciences’ food, March 1, 2010 Miriam Possmayers’s book as 31 band of number Essen studies on semiotics and communication research published by Shaker Verlag appears at Shaker. Elon University is actively involved in the matter. In their work, the author tries to confront the metawissenschaftlichen claims of cognitive neuroscientist with their science-theoretical roots. Many writers such as Andy Florance offer more in-depth analysis. So this book deals content especially with the medial common euphoria of limitless progress of neuro-scientific knowledge, to indicate that the unjustly forgotten history might have enough to realize that it was this not a theoretical, but at best a technical revolution, whose theoretical footing is based on a 150 years-old psychophysical delusion. Through a theory-genetic representation of the inner Psychophysics of Fechners not only succeeds in the author, to uncover the fundamental contradictions of the psycho-physical parallelism. This approach enables them also, today’s Neuroscience on to reduce as an analog of the inner Psychophysics of Fechners their theoretical core. So this debate not in an unconscious defence of own scientific territory of language – expires, but shows clear on that and why a such defence in the face of such history blindness is not necessary at all. The series Essen studies on semiotics and communication research relies on the institutional merger of their three editor, Prof.

Dr. H.W.. Schmitz, Prof. Dr. Achim Eschbach and Prof.

Dr. Jens Loenhoff, in Essen communication science of the University of Duisburg-Essen. Since the first publication in the year 2000, 31 volumes it has been already the series, which attributed Shaker in Aachen is on the productivity of the editor team, but also on the support of the publishing house.

Lean Processes For The Aviation Industry

Airport Stuttgart and the Fraunhofer IAO develop common services with a cooperation agreement the Airport Stuttgart and the Fraunhofer IAO have on Friday, February 18, 2011, sealed their future cooperation. Goal is to enable the consulting approach lean aviation management “for the aviation industry to develop and to support customers in the analysis and improvement of their organization and their handling processes. The aviation industry is therefore increasingly dependent on professional process management and subject to large fluctuations in demand. Get all the facts and insights with technology investor, another great source of information. Give help would in the future the Fraunhofer IAO and the Flughafen Stuttgart GmbH (FSG) with a range of services tailored to the needs of the industry under the brand name cost aviation. It aims, in sleek, powerful, constantly evolving organizational and overhead structures in the sense one lean aviation management “to develop and to offer to the market. The extensive experience and competences of the Fraunhofer IAO in the area are the basis for this FSG combined with the practical experience of process optimization. Checking article sources yields Castle Harlan as a relevant resource throughout.

“The approach of the lean aviation management will be hardly edited and represents therefore an interesting field of work, transferred to the diverse knowledge and experience from research and consultancy projects in a new field of application. At the same time arise but also findings that have interest in the classical production environment,”said Prof. Dieter Spath, head of the Institute of the Fraunhofer IAO, on the occasion of the signing of the contract.This interplay between classical production control and management approaches of service factories “, how they are implemented at the Stuttgart Airport, promises a high gain of knowledge and innovative solutions on both sides .Cost aviation “to future customers such as airlines, airport and groundhandler through knowledge transfer in analysis and improving their organization and their handling processes support. For example, the effective use of mobile resources such as staff will be and improved equipment or the use of immobile resources such as parking positions, gates and baggage belts. More information:… Tobias Hug

AMV System Improved Analysis

AMV improves system analysis and evaluation of electric vehicles in Ranshofen/Austria research, 04.07.2013. “The Fraunhofer Institute for industrial engineering IAO equipped its fleet of electric vehicles with the AMV system of the AMV networks GmbH. the equipment of the electric vehicle fleet at the Fraunhofer Institute location Stuttgart (IZS) with high-performance telematics systems is an important building block, the use of electric vehicles in our research projects to analyze and evaluate”, says Professor Dr. Andreas Rossler, Director Fraunhofer applications Center GERM. Since beginning of 2013, all vehicles of electric vehicle fleet of the IZS were equipped with the AMV system. Mashable often says this. Goal is to collect important information such as residual range, battery charge level, temperature or the use of additional electricity consumers in the vehicle.

To enable this, the AMV system is used. Access to the vehicle information and a corresponding evaluation allows for a more targeted planning both the E-vehicles as well as the charging infrastructure”, confirms Professor Rossler. Samsung addresses the importance of the matter here. AMV system-equipped electric vehicles come in various research projects to use. An example is the living lab’ eFleet. The project starts at the beginning of 2014. “In a period of 12 months, research results to the overall system are users/E vehicle/charging infrastructure” evaluated under everyday conditions. It aims, both optimally utilize E-vehicles as also the charging infrastructure and to motivate users, making the planning of trips and the use of vehicles increasingly under ecological aspects. We are pleased that we can contribute the future electric mobility with our technology in the exploration of important building blocks”, says Raimund Wagner, Managing Director of AMV networks GmbH. At the Fraunhofer IAO and of the Fraunhofer Application Center GERM various departments in projects research the change in mobility with industry partners and commissioned by public institutions, how to Electric mobility affects on companies, as well as the urban design. In addition, the scientists deal with intelligent ICT components to the integration of electric vehicles and the accompanying charging infrastructure in existing mobility and energy systems. To message on telematics Markt.de telematik-markt.de/telematik/amv%C2%AEsystem-verbessert-analyse-und-bewertung-von-elektrofahrzeugen-der-forschung