Таблица 1. Классификация сварки металлов по ГОСТ 19521-74 Класс сварки Определение Вид сварки Термический Виды сварки, осуществляемы плавлением с использованием тепловой энергии дуговая, электрошлаковая, электронно-лучевая, плазменно-лучевая, ионно-лучевая, тлеющим разрядом, световая, индукционная, газовая, термитная, литейная. Т ермомеханический Виды сварки, осуществляемые с использованием тепловой энергии и давления контактная, диффузионная, индукционно­ прессовая, газопрессовая, термокомпрессионная, дугопрессовая, шлакопрессовая, термитно-прессовая, печная […]

ACETONE: A flammable, volatile liquid used in acetylene cylinders to dissolve and stabilize acetylene under high pressure. ACETYLENE: A highly combustible gas composed of carbon and hydrogen. Used as a fuel gas in the oxyacetylene welding process. ACTUAL THROAT: See THROAT OF FILLET WELD. AIR-ACETYLENE: A low temperature flare produced by burning acetylene with air […]

A: Wet working conditions must be avoided, because water is an excellent conductor and electricity will always follow the path of least resistance. Even a person’s perspiration can lower the body’s resistance to electrical shock. Poor connections and bare spots on cables further increase the possibility of electrical shock, and therefore, daily inspection of these […]

In this part guidelines are given on the principal health and safety considerations to ensure safe welding practices and prevent accidents. Health risks associated with fume and gases generated during welding are highlighted. Pre reading activity Think and say: 1. Do you think welding is a dangerous/hazardous profession? 2. What type/types of welding do you […]

The term Orbital-Welding is based on the Latin word ORBIS = circle. This has been adopted primarily by aerospace and used in terms of Orbit (noun) or Orbital (adjective) for the trajectory of a man-made or natural satellite or around a celestial body. The combination Orbital Welding specifies a process by which an arc travels […]

Think of the answers for the following questions: 1. Why can welding be necessary on board of a spaceship? 2. What kinds of welding methods, in your opinion, are good for use in space? 3. Why is welding in space such a difficult task? оснащение инструментами, приборами, аппаратурой, комплект инструментов, аппаратура отражающий экран профилактическое обслуживание […]

Part 1. Computers as Welding Expert Systems Welding engineers have managed welding procedures and welder performance qualifications using computers for some years now. Engineers now readily access vital information — no more searching through piles of paper. They can easily develop procedures and qualifications through on­screen editing, get advance warning of expirations and produce a […]

The PC has now become an essential tool in the work of the engineer for not only word processing but also specialized tasks such as in design, simulation and performance assessment. Within the manufacturing industry sector, most engineers have access to a PC and the vast majority can be classed as frequent users. It is […]

The multi-run welding of heavy components imposes special demands on man-machine communication (MMC) for automated welding systems. Welding sequences of several hours with limited operator surveillance necessitate pre-programming, not only of the nominal process data, but also of other conditions for the successful performance of the welding process in varying external conditions. Warnings of conditions […]

Friction welding has been used in the manufacture of rotating bodies since 1956 and has become well-known as an extremely rapid and reliable method. Unfortunately, its use has been limited to rotationally symmetrical bodies, as friction welding is based the principle of rotating two workpieces at high speed in relation to one another and then […]