|About this Abstract
||2019 TMS Annual Meeting & Exhibition
||TMS-DGM Symposium on Lightweight Metals: A Joint US-European Symposium on Challenges in Light Weighting the Transportation Industry
||Mechanical and Microstructural Characterization of Ultrasonic Metal Welded Large Cross Section Aluminum Wire/Copper Terminal Joints
||Andreas Gester, Guntram Wagner, Ingo Kesel, Friedhelm Guenter
|On-Site Speaker (Planned)
In cable harness production the substitution of copper with aluminum wires is pursued more and more as the weight of aluminum is 50 % lower than that of copper considering to reach the same conductivity and an additional cost decrease of 2.5 times. Moreover joining Al-wires to copper terminals is often realized via crimping, which shows several disadvantages especially for cross sections of more than 10 mm˛, e.g. reduced conductivity due to the oxide layers on aluminum or electrochemical corrosion of the contact points. Ultrasonic metal welding is a promising technology, which can avoid these problems. With the availability of torsional ultrasonic welding machines joining of aluminum wires with cross sections of up to 200 mm˛ is possible. Recent investigations focus on the microstructural and mechanical properties of large cross section aluminum wire to copper terminal joints.
||Planned: Light Metals