| Autor: |
Akhonin, S. V., Bilous, V. Yu., Selin, R. V., Pashynskyi, V. V., Shvab, S. L. |
| Předmět: |
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| Zdroj: |
Paton Welding Journal; Jun2023, Issue 6, p18-23, 6p |
| Abstrakt: |
Arc welding of joints of carbon steels 20–100 mm thick can be performed both by consumable and nonconsumable electrode, using shielding gases or flux. In order to increase the efficiency of welding operations, multilayer narrow-gap welding (NGW) with filler wire feeding can be used for metals of medium and large thicknesses. This study deals with application of tungsten electrode NGW process with and without superposition of a controlling magnetic field for welding samples from steel 20 of 40 mm thickness. results of investigations of the macro- and microstructure and microhardness of the welded joints are given. It was found that application of an external controlling magnetic field for NGW of steel 20 joints ensures a higher quality of the welded joints. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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