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In view of the problems such as burn-through, limited material applicability, and high energy consumption in traditional connection methods for copper/aluminum heterogeneous metal tubes, the cold rolling connection process was studied. A set of cold rolling test devices was designed and built, with 6063 aluminum alloy tubes and T2 copper tubes selected as the research objects. The influence laws of key process parameters, including feed velocity, fillet radius of the rolling wheel, feed amount and rotational velocity on the connection forming quality were systematically analyzed. The plastic deformation mechanism during the aluminum/copper heterogeneous tube connection process was revealed through finite element simulation. Through orthogonal experiments and range analysis, the influence degrees of each parameter on the connection quality were clarified, and the influence laws of the main parameters on the forming accuracy were revealed. The results show that reducing the feed velocity, decreasing the fillet radius of the rolling wheel, reducing the radial feed amount, and increasing the rotational velocity can significantly improve the roundness of the cross-section of the interlocking joint.
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Basic Information:
China Classification Code:TG306
Citation Information:
[1]ZHAO Ren-feng,CAO Xing-chen,ZHAN Lu ,et al.Analysis of roundness of lock head cross-section formed by cold rolling connection of copper/aluminum heterogeneous thin-walled tubes[J].Journal of Plasticity Engineering,2026,33(06):22-37.
Fund Information:
陕西省重点研发计划(2023-YBGY-347); 陕西省自然科学基础研究计划(2023-JC-YB-382)
2026-06-17
2026-06-17
2026-06-17