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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5. Fatigue Testing of Welded Joints Used in the Discussed Structure In accordance with the standard PN-EN ISO 15614-2, "Specification and Qualification of Welding Procedures for Metallic Materials, Testing of Welding Procedures for Aluminum and Its Alloys," tests were initiated on joints developed using the new technology [17]. The purpose of these tests was to qualify the welding technology on the robot for serial production. The tests were conducted by an accredited unit, which was provided with samples prepared using the MIG welding process on the robotic workstation presented in the article. The base material of the samples was Group 23 according to EN-AW 6082, with a material thickness of 3 mm. The welded sample, designated RV01, was made in the PA position. The samples were prepared through mechanical cutting, CNC machining, and then manual cleaning. Table 8. Preparation Details for Welding

Welding joint diagram

Welding Sequence

To create the joint, AlMg4.5MnZr filler material with a diameter of 1 mm was used. Appropriate welding current intensity and voltage were selected, and the wire feed rate and robot arm speed parameters were also adjusted. The Up Slope, Down Slope, and End Crater technologies were employed. The samples were subjected to non-destructive testing, and macrographic figure 9 as well as micrographic cross-sections figure 10 were taken.

Figure 9. Macrographic Cross-Sections of Sample Number RV01