welding

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Welding - a type of technology that permanently connects parts of devices or structures made of metal or plastic. It consists in heating the contact surfaces so that they become plastic (cakes) and pressed them. Only a small volume at the interface is plasticized. Depending on the welding method used, pressure is applied first and then warming up, or vice versa, first heating and then surface pressure Types of welding

For welding metal parts the most commonly used is electric resistance welding. Focussing (heating on a coke oven or in a furnace and then hammering) is already an obsolete method and is rarely used in the craft.

Metal glass welding is also used.

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