Paper Title:
Study of the Key Issues of Friction Stir Welding of Titanium Alloy
  Abstract

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.

  Info
Periodical
Materials Science Forum (Volumes 638-642)
Main Theme
Edited by
T. Chandra, N. Wanderka, W. Reimers , M. Ionescu
Pages
1185-1190
DOI
10.4028/www.scientific.net/MSF.638-642.1185
Citation
H. J. Liu, L. Zhou, Y. X. Huang, Q. W. Liu, "Study of the Key Issues of Friction Stir Welding of Titanium Alloy", Materials Science Forum, Vols. 638-642, pp. 1185-1190, 2010
Online since
January 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: K.L. Hari Krishna, S.R. Koteswara Rao, V.V. Subba Rao
Chapter 3: Materials Properties Research and Processing
Abstract:Present work pertains to welding of ZM21 magnesium alloy using three different welding techniques namely Gas Tungsten Arc Welding, Laser Beam...
475
Authors: K. Subbaiah
Chapter 3: Materials and Materials Processing Technologies in Mechanical Engineering
Abstract:The mechanical behavior of Friction Stir (FS) welds made under the most favorable choice of parameters was determined using tensile tests and...
375