Welding of advanced high strength aluminium-lithium alloys

被引：0

作者：

Nair, CGK ^{[1
]}

Krishnadev, MR ^{[1
]}

机构：

[1] Hindustan Aeronaut Ltd, Bangalore 560001, Karnataka, India

来源：

METAL WELDING AND APPLICATIONS: THERMOMECHANICAL PROCESSING OF ALLOYS | 1999年

关键词：

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Weldability problems like crack sensitivity, porosity and degradation of heat affected zone are highlighted from the literature. Welding parameters of 2 mm thick Al-1.2Li-1.8Cu-1.0Mg-0.15Zr alloy sheets were optimised using tungsten inert gas, electron beam and resistance welding processes. Low weld efficiency of about 50% in the as welded condition of electron beam welding as compared to that of 70% in tungsten inert gas welding is attributed to loss of lithium during the former process and post weld beat treatment restored the same to 80% and 90% respectively. Resistance welding has given shear strength values well above the requirements.

引用

页码：315 / 330

页数：16

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