Publications by authors named "Andrzej Nowotnik"
Article Synopsis
- * A study focused on creating EN AW-2007 alloy from industrial and secondary scrap using continuous casting, analyzing the resulting recycled bars for chemical composition, microstructure, and mechanical properties.
- * Key findings showed that after appropriate heat treatment, the recycled alloy achieved high hardness and strength, with a maximum hardness of 124.8 HB and a tensile strength of 435.0 MPa, indicating that defect-free ingots with great mechanical properties can be made from recycled materials.
The production of thin-walled elements, especially those with large overall dimensions, poses numerous technological and operational problems. One of these problems relates to the machining-induced strain of such elements resulting from residual stress generated during the machining process. This study investigates the effect of the technological parameters of milling on residual stress in the surface layer of thin-walled plates made of aluminum alloy EN AW-2024 T351 for aerospace applications.
View Article and Find Full Text PDFThe continuous increase in the consumption of aluminium and its alloys has led to an increase in the amount of aluminium scrap. Due to environmental protection, and to reduce the costs of manufacturing aluminum in recent years, a lot of research is devoted to recycling of aluminum alloys. The paper presents the results of research concerning the possibility of manufacturing standardized alloy 2017A from commercial and post-production scrap by continuous casting.
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