Journal ArticleDOI
Tool penetration during friction stir spot welding of Al and Mg alloys
Reads0
Chats0
TLDR
In this article, the mechanism of tool penetration during friction stir spot welding of Al-alloy and Mgalloy sheet materials is investigated and explained as a progression of wear events, from mild wear to severe wear and then to melt wear in material beneath the base of the rotating pin.Abstract:
The mechanism of tool penetration during friction stir spot welding of Al-alloy and Mg-alloy sheet materials is investigated and is explained as a progression of wear events, from mild wear to severe wear and then to melt wear in material beneath the base of the rotating pin. Melt wear can also occur under the rotating tool shoulder provided that sufficient penetration of the upper sheet occurs during the spot welding operation.read more
Citations
More filters
Journal ArticleDOI
Stir zone microstructure and strain rate during Al 7075-T6 friction stir spot welding
TL;DR: In this article, a combination of transmission electron microscopy (TEM) and electron backscattered diffraction (EBSD) microscopy was used to examine the microstructure of friction stir spot welds.
Journal ArticleDOI
Intermixing in Dissimilar Friction Stir Spot Welds
TL;DR: In this paper, the authors investigated the dissimilar intermixing during friction stir spot welding of Al 5754 and Al 6111 sheets using a combination of experimentation and numerical modeling.
Journal ArticleDOI
Resistance and friction stir spot welding of DP600: a comparative study
TL;DR: In this article, a comparative study of RSW and FSSW on spot welding AHSS has been conducted and the results show a correlation found among microstructure, failure loads, energy requirements and bonded area for both spot welding processes.
Journal ArticleDOI
Experimental and numerical investigation of the plunge stage in friction stir welding
TL;DR: In this paper, a 3D finite element-based model of the plunge phase was developed using the commercial code ABAQUS to study the thermomechanical processes involved during the plunge stage.
Journal ArticleDOI
Material interactions in a novel pinless tool approach to friction stir spot welding thin aluminum sheet
TL;DR: In this article, a pinless tool design was used to achieve high lap shear strength in thin aluminum sheet with short weld cycle times, with little evidence of a heat affected zone (HAZ).
References
More filters
Book
Friction Stir Welding and Processing
Rajiv S. Mishra,Zongyi Ma +1 more
TL;DR: Friction stir welding (FSW) is a relatively new solid-state joining process that is used to join high-strength aerospace aluminum alloys and other metallic alloys that are hard to weld by conventional fusion welding as discussed by the authors.
Journal ArticleDOI
Transition between mild and severe wear in aluminium alloys
J. Zhang,Ahmet T. Alpas +1 more
TL;DR: In this article, the authors studied mild and severe wear behaviors of a wrought aluminium alloy (6061 Al) as a function of applied load and sliding velocity, and constructed an empirical wear transition map to delineate the conditions under which severe wear initiated.
Journal ArticleDOI
Sliding wear map for the magnesium alloy Mg-9Al-0.9 Zn (AZ91)
H. Chen,Ahmet T. Alpas +1 more
TL;DR: In this article, a wear mapping approach, consisting of identification of micromechanisms of wear leading to the generation of loose debris and surface damage and determination of the range of applicability of each mechanism as a function of load and speed, was adopted.
Journal ArticleDOI
Physical properties of surfaces - III—The surface temperature of sliding metals - The temperature of lubricated surfaces
TL;DR: In this paper, the surface temperature of a solid body sliding over another was measured by using the rubbing contact of two different metals as a thermocouple, and determining the electromotive force generated on sliding.
Journal ArticleDOI
The Surface Temperature of Sliding Solids
Frank Philip Bowden,P. H. Thomas +1 more
TL;DR: In this article, the surface temperature developed at the points of rubbing contact between a metal and a transparent solid is determined by measuring the infra-red radiation transmitted through the solid, and it is shown that high, fluctuating temperatures occur, and the results are in general agreement with those obtained by other physical methods.
Related Papers (5)
Failure modes and fatigue life estimations of spot friction welds in lap-shear specimens of aluminum 6111-T4 sheets. Part 1: Welds made by a concave tool
P.-C. Lin,Jwo Pan,T. Pan +2 more