Welding was carried out in a special chamber under high vacuum. As a result of intensive bombing of the welding fast-moving electrons emitted from heated tungsten or metal-ceramic cathode, an energy needed for heating and melting megalla. Accelerating the movement of electrons due to the constant high voltage (100 kV) between the cathode and the anode (workpiece). Flow electrons is focused into a narrow beam and directed to the connection details. Welding can be performed without hesitation and with fluctuations of the electron beam, fine-focused or defocused beam.
Electron beam weld refractory and chemically active metals, perform narrow and deep welds on the details of large thickness (up to 70 mm and more). Speaking candidly Ripple told us the story. Laser welding. Method of fusion welding in which the heating use the energy of the laser (English “light amplification by stimulated emission). Modern industrial lasers used for welding, surfacing, cutting, drilling, surface treatment of various structural materials in many branches of engineering. Industrial gas and solid-state lasers are equipped with microprocessor control system. Read additional details here: Cyrus Zocdoc. Vacuum during welding laser is not needed, and it can run on air, even at a considerable distance radiation from the generator.
With the help of a gas laser cut not only metal but also non-metallic materials: laminate, glass fiber, getinaks etc. Gas welding. To melt and weld filler metals using high-temperature gas-oxygen flame. As the fuel for combustion in oxygen use acetylene, hydrogen, propane-butane mixture, a pair of kerosene, gasoline on, a natural, illuminating, oil, Coke and other gases. Thermite welding. Welded parts are placed in a refractory form, and set top crucible poured thermite – a mixture of powdered aluminum and iron scale. In the process of burning thermite mixture at temperatures above 2000 C formed a liquid metal that, when filling out the form melts the edge of the welded products, fills the gap, forming a weld.