Influence of welding process on the properties of dissimilar titanium alloy weldments: a review

JMST Advances ◽  
2020 ◽  
Vol 2 (3) ◽  
pp. 61-76
Author(s):  
Massab Junaid ◽  
Taqi Ahmad Cheema
Keyword(s):  
Titanium Alloy ◽  
Welding Process

Study of the Key Issues of Friction Stir Welding of Titanium Alloy

2010 ◽  
Vol 638-642 ◽  
pp. 1185-1190 ◽  
Author(s):  
Hui Jie Liu ◽  
Li Zhou ◽  
Yong Xian Huang ◽  
Qi Wei Liu
Keyword(s):  
Titanium Alloy ◽  
Friction Stir Welding ◽  
Melting Point ◽  
Titanium Alloys ◽  
Welding Process ◽  
High Strength ◽  
Liquid Cooling ◽  
Friction Stir ◽  
Key Issues ◽  
Aluminum And Magnesium Alloys

As a new solid-state welding process, friction stir welding (FSW) has been successfully used for joining low melting point materials such as aluminum and magnesium alloys, but the FSW of high melting point materials such as steels and titanium alloys is still difficult to carry out because of their strict requirements for the FSW tool. Especially for the FSW of titanium alloys, some key technological issues need to solve further. In order to accomplish the FSW of titanium alloys, a specially designed tool system was made. The system was composed of W-Re pin tool, liquid cooling holder and shielding gas shroud. Prior to FSW, the Ti-6Al-4V alloy plates were thermo-hydrogen processed to reduce the deformation resistance and tool wear during the FSW. Based on this, the thermo-hydrogen processed Ti-6Al-4V alloy with different hydrogen content was friction stir welded, and the microstructural characterizations and mechanical properties of the joints were studied. Experimental results showed that the designed tool system can fulfill the requirements of the FSW of titanium alloys, and excellent weld formation and high-strength joint have been obtained from the titanium alloy plates.

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.

Study of heat-affected zone and mechanical properties of Nd-YAG laser welding process of thin titanium alloy sheet

2016 ◽  
Vol 1 (2) ◽  
pp. 51-58 ◽  
Author(s):  
Grzegorz Krolczyk ◽  
Aleksandar Sedmak ◽  
Uday Kumar ◽  
Somnath Chattopadhyaya ◽  
A. K. Das ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Titanium Alloy ◽  
Laser Welding ◽  
Heat Affected Zone ◽  
Welding Process ◽  
Alloy Sheet ◽  
Yag Laser ◽  
Laser Welding Process

A systematic review of effect of different welding process on mechanical properties of grade 5 titanium alloy

2020 ◽  
Vol 21 ◽  
pp. 948-953 ◽  
Author(s):  
M. Swapna Sai ◽  
V. Dhinakaran ◽  
K.P. Manoj Kumar ◽  
V. Rajkumar ◽  
B. Stalin ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Systematic Review ◽  
Titanium Alloy ◽  
Welding Process ◽  
Grade 5

Finite Element Simulation of the Upset Welding Process

1991 ◽  
Author(s):  
H. A. Nied
Keyword(s):  
Finite Element ◽  
Titanium Alloy ◽  
Elevated Temperature ◽  
Welding Process ◽  
Element Model ◽  
Stress Fields ◽  
Element Formulation ◽  
Deformation Characteristics ◽  
Element Simulation ◽  
Major Process

A finite element model of an elevated temperature upset welding process was developed to simulate the process and to study the role and sensitivity of the major process parameters. Particular attention was focused on the deformation characteristics by studying the displacement and stress fields generated for the purpose of obtaining a better understanding of this solid-state welding process. The paper describes the finite element formulation, the experiments used to validate the modeling, and a selected application for upset welding of a titanium alloy.

Experimental Study on Welding Process of TC4 Titanium Alloy with Different Welding Wires

2021 ◽  
Vol 1035 ◽  
pp. 57-62
Author(s):  
Guo Qiang Shang ◽  
Li Ping Li ◽  
Xin Nan Wang
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Tensile Strength ◽  
Titanium Alloy ◽  
Cross Section ◽  
Welding Process ◽  
Alloy Wire ◽  
Tc4 Titanium Alloy ◽  
Weld Area ◽  
Evolution Of Microstructure

In present study, the effects of different welding wires on the evolution of microstructure and mechanical properties of TC4 titanium alloy test plates were studied. The results show that the test plates welded by TA20 titanium alloy wire, TC3 titanium alloy wire and TC4 titanium alloy wire are well formed, no defects are found in the cross section of the weld. The microstructures of these test plates are similar, and needle-like martensite exists in the weld area. In comparison, this is little obvious difference in tensile strength among these test plates welded by different welding wires, while the plates welded by TC4 titanium alloy has better elongation, contraction of aera, impact toughness and better balance of strength and toughness.

Research on Welding Process of TC4 Titanium Alloy by Robotic Fiber Laser

Applied laser ◽  
2013 ◽  
Vol 33 (4) ◽  
pp. 426-429
Author(s):  
邱俊斌 Qiu Jianbing ◽  
张永康 Zhang Yongkang ◽  
罗敬文 Luo Jingwen
Keyword(s):  
Titanium Alloy ◽  
Fiber Laser ◽  
Welding Process ◽  
Tc4 Titanium Alloy

CO2 Laser - MIG Hybrid Welding of Titanium Alloy

2011 ◽  
Vol 264-265 ◽  
pp. 1270-1280
Author(s):  
Marco Brandizzi ◽  
Annunziata Anna Satriano ◽  
Luigi Tricarico
Keyword(s):  
Titanium Alloy ◽  
Cross Section ◽  
Working Conditions ◽  
Welding Process ◽  
Inert Gas ◽  
Welding Parameters ◽  
Hybrid Welding ◽  
Mig Welding ◽  
Butt Welding ◽  
Gap Bridging

CO2 laser - Metal Inert Gas (MIG) hybrid welding process was investigated in the butt welding of Ti-6Al-4V titanium alloy sheets of 3.0mm in thickness. Using a Design of Experiment (DoE) approach, bead on plate tests were planned with the aim to analyze the effect of laser and laser-MIG welding parameters on the bead shape, hardness profiles in the weld cross section and welding efficiency. Butt welds performed in correspondence of the bead on plate working conditions which assure the complete penetration of the samples, the absence of undercuts and the maximum welding efficiency, confirm the results of the bead on plate tests and highlights the gap bridging ability of the hybrid welding process.

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