Применение информационных технологий и этические нюансы в управлении массовым сознанием

This paper discusses the current value of information technology in our lives, as well as their application to control the mass consciousness

Innovatives Elektronenstrahlschweißen hochschmelzender Metalle - Innovative electron-beam welding of high-melting metals

Since its establishment as nuclear research plant Juelich in the year 1956, the research centre Juelich (FZJ) is concerned with the material processing of special metals. Among those are, above all, the high-melting refractory metals niobium, molybdenum and tungsten. Electron beam welding has always been considered to be an innovative special welding method; in the FZJ, electron beam welding has, moreover, always been adapted to the increasing demands made by research partners and involved manufacturing and design sectors. From the manual equipment technology right up to highly modem multi-beam technique, the technically feasible for fundamental research has, this way, always been realised

Low Heat Welding of Titanium Materials with a Pulsed Nd:YAG Laser (Wärmearmes Schweißen von Titanwerkstoffen mit einem gepulsten Nd:YAG-Laser)

Titanium materials exhibit a property profile that is just as versatile as that of steel materials. Titanium materials therefore have outstanding properties, such as excellent resistance to corrosion and high strength values at low densities, which makes them ideal for use in the chemical industry and as structural materials in lightweight construction.Due to the high affinity of titanium to atmospheric gases at increased temperatures above 500 degrees C, titanium components have to be welded in a sophisticated process under inert shielding gas by TIG welding or by an electron beam in a vacuum.A novel innovative laser beam welding process using a pulsed laser with free pulse shaping will be presented here with which oxidation-free titanium weld seams with excellent mechanical and technological properties can be produced. For this low heat welding process, the otherwise commonly used inert gas covering can be substituted with a shielding gas nozzle. The process-specific low heat input and the resulting low energy input per unit length both have a positive effect on the microstructure and thus on the mechanical properties.This welding process offers both technological and economical advantages over the processes used up until now, particularly for the machining of complex components and for series production

Development of a laser-based glass sealing joining process for the fuel cell manufacturing

AbstractIn the Central Technology Division of Forschungszentrum Jülich GmbH procedures and manufacturing concepts used in production of stationary and mobile fuel cell stacks on the basis of the material developments of the involved research institutes are developed. From essential meaning is the application of self developed glass sealing materials as joining and isolation medium. The use of glass sealing material is up to now limited on the furnace technology with low heating and cooling rates. The potentials of the laser as adaptable tool for manufacturing and repair of the fuel cell stacks should be evaluated within the scope of this research study