Linear Friction Welding of a 2024 Al Alloy: Microstructural, Tensile and Fatigue Properties

2012 ◽  
pp. 493-496 ◽  
Author(s):  
Fabio Rotundo ◽  
Alessandro Morri ◽  
Lorella Ceschini
Keyword(s):  
Friction Welding ◽  
Fatigue Properties ◽  
Al Alloy ◽  
Linear Friction Welding ◽  
Linear Friction

scholarly journals Flat hardness distribution in AA6061 joints by linear friction welding

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jeong-Won Choi ◽  
Weihao Li ◽  
Kohsaku Ushioda ◽  
Hidetoshi Fujii
Keyword(s):  
Friction Welding ◽  
High Performance ◽  
Applied Pressure ◽  
Al Alloys ◽  
Al Alloy ◽  
Hardness Distribution ◽  
Linear Friction Welding ◽  
Linear Friction ◽  
Interfacial Temperature ◽  
Large Shear Strain

AbstractIt is known that one of the main concerns associated with the conventional welding of precipitation-strengthened Al alloys is the formation of softening regions, resulting in the deterioration of mechanical properties. In this study, we show that linear friction welding (LFW) can completely suppress softening regions in precipitation-strengthened AA6061-T6 alloy by introducing a large shear strain and by controlling the interfacial temperature. We found that the LFW process resulted in an extremely low interfacial temperature; it decreased as the applied pressure increased from 50 to 240 MPa. This approach can essentially suppress both softening and hardening regions, leading to uniform hardness distribution in Al joints. The high-pressure LFW process demonstrated here can thus provide an innovated guidance to obtain high-performance Al alloy joints and be extended to other precipitation-strengthened Al alloys, which undergo high-temperature softening.

Effect of Process Parameters on Welding Variables during Linear Friction Welding of Ti-6Al-4V Alloy

2011 ◽  
Vol 314-316 ◽  
pp. 979-983
Author(s):  
Tie Jun Ma ◽  
Xi Chen ◽  
Wen Ya Li
Keyword(s):  
Titanium Alloy ◽  
Process Parameters ◽  
Friction Welding ◽  
Welding Process ◽  
Orthogonal Experimental Design ◽  
Linear Friction Welding ◽  
Influence Of Process Parameters ◽  
Linear Friction ◽  
Suitable Process ◽  
Axial Shortening

The orthogonal experimental design was conducted for linear friction welding of Ti-6Al-4V titanium alloy (TC4). The friction power and joint temperature were collected during the welding process. The influence of process parameters on the axial shortening was analyzed. The suitable process parameters were determined by investigating the joint appearance, the requirement of axial shortening and welding variables during welding. The results provide important reference for establishing process parameters of linear friction welding in practice.

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