Fabrication of copper clad aluminum wire(CCAW) by indirect extrusion and drawing
Fabrication of copper clad aluminum wire(CCAW) by indirect extrusion and drawing
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DOI：
10.4028/www.scientific.net/msf.449-452.317
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发表时间：
2004-01-01
期刊：
影响因子：
--
通讯作者：
Kim, MS
中科院分区：
文献类型：
--
作者：
Kwon, HC;Jung, TK;Kim, MS
本研究得出的最佳挤压条件为：挤压温度573 ~ 623k，挤压比（A(0)/A）为21.39。当挤压温度高于623K时，护套材料出现断裂。这是由于挤压过程中护套材料和芯材之间的流动应力存在差异。结合强度随挤压温度和挤压比的增加而增加。结合强度随退火温度的升高而增大。但在573K以上，由于形成了大于3 μ m的厚而脆的金属间化合物，其强度急剧下降。未经退火处理的铜包铝线电导率约为70%IACS。
The optimized extrusion conditions from the present research were the extrusion temperature of 573similar to623K and the extrusion ratio(A(0)/A) of 21.39. Above the extrusion temperature of 623K, the fracture of sheath material was observed. It is due to the difference of flow stress between the sheath material and the core material during extrusion process. The bonding strength increased with increasing the extrusion temperature and the extrusion ratio. The bonding strength increased with increasing the annealing temperature. However, over 573K, it decreased abruptly since the thick and brittle intermetallic compounds of larger than 3 mum were formed. The electrical conductivity of copper clad aluminum wire was about 70%IACS without annealing.