Deformation of T-Connected Pipes DuetoWelding Process
Journal Title: International Journal of Engineering and Science Invention - Year 2017, Vol 6, Issue 11
Abstract
Simulation tools are among the most powerful and cost-efficient ways to reduce welding deformation. In this research, a simulation tool combined with experimentsisused to evaluate the deformation of a structure comprising two perpendicular pipes. In the simulation, the linear elastic-shrinkage method using relatively new finite-element modeling softwaredeveloped by ANSYS Inc. is used to simulate the welding process and to predict the welding distortion of pipeswithdifferent thicknesses. For verification purposes, a series of experiments arealso performed using a fully automated welding system with a gas metal arc welding power source. The results show that using the same welding parameters, a thinner pipe will experience larger deformation. The maximum deformations are 3.53 mm, 2.32 mm, 1.78 mm, and 1.30 mmforpipe thicknesses of 2.5 mm, 3.2 mm, 4.0 mm, and 5.2 mm, respectively. When the pipe thickness is increased from 2.5 to 5.2 mm, the maximum residual stress decreases from 677 to 498 MPa.
Authors and Affiliations
Pham Son Minh, Ho Ngoc Son
Keywords
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