Аңдатпа
The article presents the results of modeling and experimental studies of the ingotless rolling-extrusion (IRE) process of Al-5Ti-1B alloy rods. The objective of this research is to develop a set of technical and technological solutions for the creation of a technology for producing ligature rods from Al-Ti-B alloys with an effective modifying effect. Using the QForm software package, the temperature and energy-force characteristics of the IRE process for producing 9 mm diameter rods from the investigated alloy were determined at the specified deformation and speed parameters. The optimal process parameters were obtained. The melt temperature was 720 ± 10 °C; the temperature of the billet crystallized in the rolls was 520 °C; the roll rotation frequency was 4 rpm; the strain during rolling was 50%; and the drawing ratio during extrusion should be in the range of 4.7–12.9. It was found that rods of Al-5Ti-1B alloy obtained from the melt by the IRE method have an effective modifying capacity comparable to industrial ligatures made from Al-Ti-B alloys.