Development of modern materials is non-negligibly connected with enhancement of their mechanical and utility properties, which can advantageously be performed via optimized deformation processing. The study presents preparation of Al/Cu sandwich composite, reinforced with Cu_wires, by the twist channel angular pressing (TCAP) method. Extrusion of the sandwich composite via single and double pass TCAP was simulated using the finite element method, and performed experimentally. The predicted deformation behaviour was verified by 3 D Micro-CT scanning, as well as detailed microstructure observations. The results showed that already the single TCAP resulted in substantial deformation strengthening of both the component metals, and the effective strain imposed within the Al_sheath reached the value of 5 after the second pass. The Al_sheath also featured homogeneous distribution of the lowest absolute values of residual stress, and the smallest average grain size of 1.66 µm. The Cu grains within both the composites were also significantly refined, to almost 3 µm after the second pass. Nevertheless, the observed parameters featured slight variations across the composites’ cross-sections, which can be attributed to the plastic flow behaviour phenomena. The severe imposed shear strain also resulted in increase in microhardness and imparted changes in the thermal conductivity.

现代材料的发展与它们的机械性能和实用性的提高不可忽视地联系在一起，这可以通过优化的变形工艺来实现。铝/铜的研究提出制备夹层复合，其中Cu强化_线由捻径角挤压（TCAP）方法。使用有限元方法模拟了通过单次和两次通过TCAP的三明治复合材料的挤出，并进行了实验。通过3D Micro-CT扫描以及详细的微观结构观察，验证了预测的变形行为。结果表明，单一的TCAP已经导致了两种成分金属的显着变形增强以及施加在Al_护套内的有效应变第二次通过后达到5的值。铝_护套还具有均匀分布，残余应力的绝对值最低，平均晶粒尺寸最小，为1.66 µm。第二次通过后，两种复合材料中的Cu晶粒也得到了显着细化，达到近3 µm。然而，观察到的参数在复合材料的横截面中表现出细微的变化，这可以归因于塑性流动行为现象。严重施加的剪切应变还导致显微硬度的增加和导热性的改变。