СВ-3

СВ-3

by Елизавета Волкова

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Welding is a process when metal parts are joined together by the application of heat, pressure, or a combination of both. The processes of welding can be divided into two main groups:

• pressure welding, when the weld is achieved by pressure and

• heat welding when the weld is achieved by heat. Heat welding is the most common welding process used today.​

Multiple Choice

How can a process of welding be defined?

• Welding is a process when metal parts are joined together by the application of heat, pressure, or a combination of both.

• welding is the most essential tools for a welding professional.

Multiple Choice

What are the two main groups of processes of welding?

• pressure welding

  heat welding

• arc welding

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​Nowadays welding is used instead of bolting and riveting in the construction of many types of structures, including bridges, buildings, and ships. It is also a basic process in the manufacture of machinery and in the motor and aircraft industries. It is necessary almost in all productions where metals are used.

Multiple Select

Where is welding necessary?

• buildings

•  books

• ships

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​The welding process depends greatly on the properties of the metals, the purpose of their application and the available equipment. Welding processes are classified according to the sources of heat and pressure used.

The welding processes widely employed today include gas welding, arc welding, and resistance welding. Other joining processes are laser welding, and electron-beam welding.