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English-Bulgarian polytechnical dictionary . 2013.
English-Bulgarian polytechnical dictionary . 2013.
Spot welding — is a type of resistance welding used to weld various sheet metal products. Typically the sheets are in the 0.5 3.0 mm thickness range. The process uses two shaped copper alloy electrodes to concentrate welding current into a small spot and to… … Wikipedia
Orbital welding — is a specialised area of welding whereby the arc is rotated mechanically through 360° (180 degrees in double up welding) around a static workpiece, an object such as a pipe, in a continuous process. Contents 1 History 2 Equipment 3 Application … Wikipedia
Friction stir welding — (FSW) is a solid state joining process (meaning the metal is not melted during the process) and is used for applications where the original metal characteristics must remain unchanged as far as possible. This process is primarily used on aluminum … Wikipedia
Submerged arc welding — (SAW) is a common arc welding process. Originally devolved by the Linde Union Carbide Company. It requires a continuously fed consumable solid or tubular (flux cored) electrode. The molten weld and the arc zone are protected from atmospheric… … Wikipedia
Induction welding — is a form of welding that uses electromagnetic induction to heat the workpiece. The welding apparatus contains an induction coil that is energised with a radio frequency electric current. This generates a high frequency electromagnetic field that … Wikipedia
Plasma cutting — This article is about the common manufacturing process. For various fictional weapons, see plasma rifle and directed energy weapon. Plasma cutting is a process that is used to cut steel and other metals (or sometimes other materials) using a… … Wikipedia
Cloud Gate — Coordinates: 41°52′57.67″N 87°37′23.97″W … Wikipedia
building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… … Universalium
steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying … Universalium
Coal — Sedimentary Rock Anthracite coal Composition Primary carbon Secondary hydrogen, sulfur … Wikipedia
Manufacturing engineering — is a field dealing with different manufacturing practices and the research and development of processes, machines and equipment. Contents 1 Overview 2 History 2.1 Modern developments 3 Education … Wikipedia