The influence of pin geometry on bonding and mechanical properties in friction stir weld 2014 Al alloy

The influence of pin geometry on bonding and mechanical properties in friction stir weld 2014 Al alloy

Friction stir tool is the key art of friction stir welding process. The influence of the welding structure and the mechanical properties has been investigated. For this purpose, four different stir pins, two of them are column pin and taper pin and the other two are the same size but with screw thre...

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Veröffentlicht in:Materials letters 2005-10, Vol.59 (23), p.2948-2952
Hauptverfasser: Zhao, Yan-hua, Lin, San-bao, Wu, Lin, Qu, Fu-xing
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2014 Al alloy
Friction stir pin
Friction stir welding
Weld mechanical property
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container_title Materials letters
container_volume 59
creator Zhao, Yan-hua
Lin, San-bao
Wu, Lin
Qu, Fu-xing
description Friction stir tool is the key art of friction stir welding process. The influence of the welding structure and the mechanical properties has been investigated. For this purpose, four different stir pins, two of them are column pin and taper pin and the other two are the same size but with screw thread, were used to carry out a welding process. Microscopic examination of the weld zone and the mechanical property tests results showed that the best bonding was obtained with screw pitched taper stir pin. The appearance of the weld is well and no obvious defect is found using this tool. The grain of the weld nugget is very fine and the precipitation distributes equably. This study will be benefit to direct the friction stir tool design.
doi_str_mv 10.1016/j.matlet.2005.04.048
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subjects 2014 Al alloy
Friction stir pin
Friction stir welding
Weld mechanical property
title The influence of pin geometry on bonding and mechanical properties in friction stir weld 2014 Al alloy
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