Issue |
MATEC Web Conf.
Volume 216, 2018
X International Scientific and Technical Conference “Polytransport Systems”
|
|
---|---|---|
Article Number | 03001 | |
Number of page(s) | 6 | |
Section | Construction and Transport Machinery, Non-Destructive Testing and Technical Diagnostics | |
DOI | https://doi.org/10.1051/matecconf/201821603001 | |
Published online | 17 October 2018 |
Controlled atmosphere GMAW welding of transportation vehicles and production machines parts made from 30MnB5 steel
1
Polzunov Altai State Technical University, 656049 Barnaul, Russia
2
Altai State Agricultural University, 656049 Barnaul, Russia
3
“Emissiia” LLC, 656067 Barnaul, Russia
* Corresponding author: 609185@mail.ru
The paper studies the influence of shielding gas on the composition and the structure of weld joint metal of 30MnB5 steel applied in essential parts of automobiles and tractors. The welding was performed in inert, oxidizing and reducing atmospheres. It was established that TIG welding with argon used as shielding gas did not provide the required mechanical properties when using conventional welding materials. Carbon dioxide during MAG welding caused partial burning of alloying elements. Carbon monoxide used as shielding gas was proved to form reducing atmosphere enabling to obtain chemical composition close to the base metal composition. Metallographic examinations were carried out. The obtained results provided full-strength weld, as well as the required reliability and durability of welded components and joints.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.