PSI - Issue 66

S. Skrobacz et al. / Procedia Structural Integrity 66 (2024) 11–25 S. Skrobacz¹², P. Krysi ń ski¹, S. Ma ł ys¹², T. Ł agoda² / Structural Integrity Procedia 00 (2025) 000–000

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Table 10. Results of the Bend Test for Samples RV01 G/1, RV01 G/2, RV01 G/3, RV01 G/4 According to EN ISO 15614-1 and EN ISO 5173

Sample

RV01 G/1

RV01 G/2

RV01 G/3

RV01 G/4

Bend Angle Tensile Side

180

180

180

180

Decklage (face)

Wurzel (root)

Decklage (face)

Wurzel (root)

Bend Elongation (%) (wyd ł u ż enie) Fracture Location¹

- -

- -

- -

- -

Assessment²

e

e

e

e

¹ G = Base Material ; Ü = Transition Zone; S = Weld ² e = Detected; ne = Not Detected

The next planned stage involves fatigue testing, which is intended to assess the mechanical properties and durability of the materials used in conditions more closely resembling the actual stresses and loads experienced by the door frame designed for rail vehicles. These tests will include both bending and torsional forces, simulating the real-world conditions under which the material is utilized [23].

6. Conclusions Welding plays a crucial role in the railway industry, and its automation, compliance with standards, and quality control are key aspects of rail vehicle production. Ensuring high-quality welds and durability is essential for the safety and efficiency of rail transport. The robotic workstation enables precise and repeatable welding, which translates into improved quality and productivity. The results of the initial tests indicate that no non-conformities or microcracks were detected in the materials, in accordance with the standards mentioned in the article. This is a positive sign, suggesting that the joints meet the specified quality standards and do not exhibit visible defects or microscopic imperfections. The results of tensile and bending tests, along with the planned fatigue tests, will help assess the mechanical properties of the materials in the context of their application in the door frame for rail vehicles, considering different levels of welding process automation. 7. Acknowledgements The project called „ The most modern solutions in the field of door and window systems for rail vehicles, created as a result of research and development works at Rawicka Fabryka Wyposa ż enia Wagonów RAWAG Sp. z o.o. ” is being carried out by RAWAG as a project co-financed by the European Regional Development Fund of the European Union under the Smart Growth Operational Programme 2014-2020, task: Measure 1.1: R&D projects of enterprises, Sub-measure 1.1.1 Industrial research and development work implemented by enterprises The project is implemented through a call for proposals of the National Centre of Research: POIR.01.01.01-00 0006/20, Fast-track 1_2020.