title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ Ð»Ð°Ð·ÐµÑÐ½Ð¾-Ð³Ð¸Ð±ÑÐ¸Ð´Ð½Ð¾Ð¹ ÑÐ²Ð°ÑÐºÐ¸ Ð¼Ð°Ð³Ð¸ÑÑÑÐ°Ð»ÑÐ½ÑÑ Ð³Ð°Ð·Ð¾Ð¿ÑÐ¾Ð²Ð¾Ð´Ð¾Ð²
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Research of laser-hybrid welding technology of main gas pipelines
Creators: name: ÐÐ¸ÐºÐ¾Ð»Ð°ÐµÐ², ÐÐ½Ð´ÑÐµÐ¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2023
Subjects: ÐÐ°Ð·Ð¾Ð¿ÑÐ¾Ð²Ð¾Ð´Ñ Ð¼Ð°Ð³Ð¸ÑÑÑÐ°Ð»ÑÐ½ÑÐµ
Ð¡ÑÐ°Ð»Ñ Ð²ÑÑÐ¾ÐºÐ¾Ð¿ÑÐ¾ÑÐ½Ð°Ñ
Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐµÐ¿Ð»Ð¾Ð²ÑÑ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð²
modeling of thermal processes

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description: The importance of laser-arc welding research for main gas pipelines in Russia cannot be underestimated. Russia is one of the largest producers and exporters of natural gas in the world, and the efficiency of transportation of this gas plays an important role in ensuring the energy security of the country and its economic development. Main gas pipelines stretching for thousands of kilometers are key elements of the infrastructure of the Russian gas industry. The quality of welded joints in these gas pipelines is of fundamental importance for their reliability and durability. Despite the fact that traditional welding methods, such as arc welding, are widely used in the construction of gas pipelines, laser arc welding is a new approach that can provide even higher quality of welded joints. Hybrid welding combines the advantages of various welding methods, such as arc welding and laser welding, and provides more precise control over the welding process. Studies of hybrid welding for main gas pipelines allow us to determine the optimal welding parameters, taking into account the characteristics of the materials used in gas pipelines, as well as the requirements for strength, tightness and resistance to environmental influences. In addition, studies of hybrid welding for main gas pipelines can lead to an increase in the efficiency of welding processes. This may include reducing welding time, improving seam quality, and reducing the number of defective welds. Improving the efficiency of welding processes will reduce the construction time of gas pipelines and reduce the overall costs of their operation and maintenance. In this work, a review of literature sources related to the subject of hybrid welding was carried out, welding of several samples of T-joints and butt joints of pipes by laser and laser-arc methods was performed, the mechanical properties of the resulting welded joints were measured, computer modeling of thermal processes was carried out, analysis of the obtained modes, the effective power of sources and the quality of seams, as well as comparison of laser welding method with laser-hybrid.