Metal Inert Gas (MIG) Welding of ASTM A500 Grade B Steel Pipes: Infrared Thermal Imaging and Analysis
Abstract
In this investigation, welding of circular pipes is undertaken. An experimental setup was designed and built to observe the welding process and gather temperature isotherms under different welding conditions. Thermal images of welding of ASTM A500 Grade B steel pipes are collected using an infrared camera. An analytical solution is used to calculate the temperature isotherms for comparison with the experimental data. The analytical approach, developed by Komanduri and Hou, uses Jaegers moving heat source method, is extended to calculate spot temperature data in pipe welding to determine the temperature profiles under various welding conditions. The analytical and experimental temperature isotherms were compared. Some differences in the temperature distributions produced by the analytical and experimental results were observed. They include the geometry and magnitude of the temperature distributions. An attempt has been made to explain for these differences.
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- OSU Theses [15752]