| |
|
Автор: German Deyev, Dmitriy Deyev
Издательство: Taylor & Francis/CRC
Год издания: 2006
isbn: 0849398835
Количество страниц: 426
Язык: english
Формат: PDF
Размер: 12 Мб
Каталожный номер: 42299
|
The industry is currently applying highly diverse welding processes. However, the main technological process applied in manufacture of weldments is fusion welding. Fusion welding is used to join practically all metals and alloys of similar and dissimilar materials of any thickness. In the application of fusion welding, the parts are joined either by melting of the parts’ edges or as a result of simultaneous melting of the base and additional (electrode) metal. A weld pool forms from the metal melt, its subsequent solidification, proceeding without application of external pressure, leads to the formation of the weld. Depending on the kind of the applied heat source, a distinction is made between the following fusion welding processes: electric arc, electron beam, electroslag, laser, and gas welding. Irrespective of the actual welding process applied, the main aim of any process is producing a sound welded joint. This is only possible if a sufficiently comprehensive allowance is made for the main physicochemical processes proceeding in the welding zone.
|
|
ПОСТУПЛЕНИЯ
РУБРИКАТОР
Комментарии (0)