Analysis of Plastic Forming During Rolling of Al1050-AZ31-Al1050 Layered Composites for Transport Purposes

The aim of the research was to determine the possibility of producing and using layered composites made of aluminum and magnesium alloys Al1050-AZ31-Al1050. The use of layered composites often results from economic conditions. The work analyzed the current research, technological and production potential, as well as selected microstructural phenomena occurring in the tested multilayer materials and the effects of the rolling process. The material for the study was obtained using the explosion welding technology, one of the few enabling universal joining of often difficult-to-weld metals. The rolling process was carried out on a semi-industrial duo rolling mill with a roller diameter of Ø300 mm. The composite input material for the rolling process was heated to a temperature of 380°C. The effect of the rolling process on the distribution of metal pressure forces on the rolls, the geometric parameters and the microstructural changes occurring in the plastically formed layered composite were analysed, and the energy gain from using a structure in which the currently used aluminium components were replaced with the tested composite was estimated.