Anisotropy Effects in the Forming of Aluminum Sheet 950702

In an effort to reduce anisotropy, which affects sheet forming performance, special actions were taken in the production of 6009-T4 sheet. To further reduce anisotropy in forming behavior, the modified 6009-T4 sheet was given an electro-discharge texture (EDT) surface topography to make friction behavior nondirectional. The modified 6009-T4 was compared to standard 6009-T4 in terms of metallurgical characteristics, laboratory test results and field forming results. The modified sheet yielded reduced planar anisotropy and improved formability. EDT completely removed directionality in friction behavior and led to an improvement in performance in the forming trials.


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