Process Parameter Optimization of Sheet Metal Arc Welding of AISI 1020 Mild Steel
Amol B. Rajbhoj and A. D. Diwate
Volume 1: Issue 1, August 2020, pp 1-11
A. D. Diwate2
Abstract:-Sheet Metal Arc welding is also known as Manual Metal Arc welding (SMAW/MMAW), is an advance arc welding process become a popular choice when a high level of weld quality or considerable precision welding is required. However, the serious issues of SMAW welding process are its moderate welding rate and restricted to lower thickness material in single pass. In this work, autogenously SMAW welding has been performed on 12 mm diameter AISI 1020 mild steel rod without utilizing any filler material. Wide range of welding current and scan speed has been tested for getting a full penetration welding. Activated flux has also been utilized to improve the weld depth. After performing welding by keeping up various gap between the rods to be welded, weld globule geometry and tensile strength of the weld has been examined. It is seen that, by keeping up a proper gap full penetration welding of rod is possible which gives strength practically similar base material.
Index Terms:-Sheet Metal Arc welding, activated flux, Current, Voltage, Tensile test, Hardness test and A - SMA welding process
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