Evaluation of heat input during friction stir welding of aluminium alloys
Evaluation of heat input during friction stir welding of aluminium alloys
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DOI：
10.1080/13621718.2016.1183079
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发表时间：
2017-01
影响因子：
3.3
通讯作者：
D. Yi;T. Onuma;S. Mironov;Yutaka S. Sato;H. Kokawa
中科院分区：
文献类型：
--
作者：
D. Yi;T. Onuma;S. Mironov;Yutaka S. Sato;H. Kokawa
热输入是影响搅拌摩擦焊接头质量和使用性能的关键参数之一。用量热技术测量了铝合金1100和5083在各种焊接参数范围内的搅拌摩擦焊过程中产生的热输入。通过对试验结果的多元回归分析，建立了利用焊接参数估算焊接热输入的经验公式。用电子背散射衍射法研究了热输入对搅拌区最终晶粒度的影响。推导了输入变量、热输入和搅拌区最终晶粒度之间的定量关系。
Heat input is one of the key parameters governing the quality and service properties of friction stir welds. By using a calorimetric technique, the heat inputs generated during the friction stir welding of the aluminium alloys, 1100 and 5083, were measured over a wide range of welding parameters. An empirical equation to estimate the heat input using the welding parameters was established based on a multiple regression analysis of the results. The effect of the heat input on the final grain size of the stir zone was also investigated by the electron backscatter diffraction method. The quantitative relationships between the input variables, heat inputs, and final grain sizes in the stir zone were derived.