Thermo-physical simulation of the compression testing for constitutive modeling of GH4169 superalloy during linear friction welding

2016 ◽  
Vol 656 ◽  
pp. 395-407 ◽  
Author(s):  
Xiawei Yang ◽  
Wenya Li ◽  
Juan Ma ◽  
Shitian Hu ◽  
Yong He ◽  
...  
2011 ◽  
Vol 314-316 ◽  
pp. 1009-1014
Author(s):  
Ying Jie Wang ◽  
Yong Zhang ◽  
Xu Chao Yuan ◽  
Guo Dong Wen ◽  
Tie Jun Ma ◽  
...  

Abstract. In order to study the plastic flow during linear friction welding (LFW), copper particles were added as tracers on the surface of lead block. The flowing state of interior metal in LFW was simulated by the home-made simulator. Results show that the upset speed promotes the plastic flow of metal and the oscillation frequency restrains it. The upset speed influences the plastic flow of metal more significantly than the oscillation frequency. Only when the pressure reaches 800N and the increasing rate reaches 100N/s, can obvious plastic flow of lead happen in the direction perpendicular to the compression. But the plastic flow of lead in the compression direction is visible even if the pressure and its increasing rate are small.


2015 ◽  
Vol 87 ◽  
pp. 215-230 ◽  
Author(s):  
Xiawei Yang ◽  
Wenya Li ◽  
Jinglong Li ◽  
Bo Xiao ◽  
Tiejun Ma ◽  
...  

2011 ◽  
Vol 314-316 ◽  
pp. 979-983
Author(s):  
Tie Jun Ma ◽  
Xi Chen ◽  
Wen Ya Li

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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