NDLI: Effect of tool rotating speed on microstructure and mechanical properties of friction stir lap welded Ti–6Al

Content Provider	Springer Nature Link
Author	Xu, Zhiwu Li, Zhengwei Lv, Zan Zhang, Liguo
Copyright Year	2016
Abstract	In the present study, friction stir lap welding (FSLW) of 1 + 1.8 mm Ti–6Al–4V alloy was carried out using different rotating speeds. Effect of tool rotating speed on defect, phase transformation, and mechanical properties of the joints was mainly discussed. Results show that void defect at the joint bottom can be eliminated by decreasing the rotating speed. Microstructure shows difference along thickness due to big temperature gradient. Hardness values of the joints are higher than the base material and bigger hardness values can be obtained using low rotating speed. Lap shear properties of the joints when the retreating sides (RS) of the upper sheets bear the main loads (configuration B) are higher than those of the joints when the advancing sides (AS) of the upper sheets bear the main loads (configuration A). The maximum failure load of 19.08 KN is attained using 150 rpm and configuration B. Shear fracture mode and tensile fracture mode can be obtained during the lap shear test.
Starting Page	3793
Ending Page	3800
Page Count	8
File Format	PDF
ISSN	02683768
Journal	The International Journal of Advanced Manufacturing Technology
Volume Number	90
Issue Number	9-12
e-ISSN	14333015
Language	English
Publisher	Springer London
Publisher Date	2016-11-14
Publisher Place	London
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Friction stir lap welding Ti–6Al–4V joints Microstructure Lap shear failure load Industrial and Production Engineering Media Management Mechanical Engineering Computer-Aided Engineering (CAD, CAE) and Design
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Mechanical Engineering Computer Science Applications Software

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