Effect of Welding Speed on Mechanical and Formability Properties of TIG-Welded Al-5052 Sheets
摘要
Tungsten inert gas (TIG) welding, which is also known as gas tungsten arc welding (GTAW), is a common welding procedure that produces the finest welding with a composition that is very much identical to that of the parent metal. Al 5052 alloy is mostly used to replace steel in the marine and automotive industries. An automated TIG welding was utilized to increase the mechanical strength and microstructural properties of aluminum 5052 alloy. The control parameters during the TIG welding are the most critical factors that have to be considered while performing the welding. The important parameters that affect TIG welding are welding speed, current, and frequency. Out of the three parameters, welding speed plays a vital role in Al alloys’ mechanical properties and formability. The current and frequency were kept constant, and the welding speed was varied. Welding is done on three different specimens using three different speeds for repeatability. Tensile tests were performed according to ASTM standards to evaluate the mechanical properties at different speeds. Mechanical tests like the Erichsen cupping test were performed to evaluate the formability of TIG welding at different speeds, and microstructural studies were performed on the welded specimens to study the effect of welding speed on TIG welding.