Mechanical Characterization and Quality Control of the Manufactured Aluminum Alloy 6061

This research work presents a novel integrated approach combining experimental mechanical characterization of a manufactured AA6061 aluminum alloy with quality control procedures to ensure product reliability. The quality control framework includes microstructural examination, tensile testing, and measurement uncertainty assessment in accordance with relevant international standards. The combined standard uncertainty was calculated using the law of propagation of uncertainty, and the expanded uncertainty was obtained with a coverage factor of k=2, corresponding to a confidence level of approximately 95%. The measured tensile strength was found to be 309.4±4.0 N/mm², demonstrating good repeatability and a low relative uncertainty of about 1.3%. The results are in accordance to the international standard mechanical property requirements for AA6061 alloy, confirming both the reliability of the experimental procedure and the suitability of the material for structural and engineering applications.