Abstract
Welding is one of the important processes in mechanical engineering. In engineering sector, welding is a common phenomenon. To improve the quality of joining process, essential changes are necessary in regular welding process. According to the research in welding process, it has been found that vibration can improve mechanical properties of the joining section. However, welding joint quality varies with different ranges of parameters in different conditions. This study has performed to analyze those ranges of parameters in some selected conditions. Here are some input parameters like vibration amplitude, vibration frequency, welding speed and electrode angle are selected to analyze the variation in welded joint. For analyzing the results, output parameters – hardness and deposition rate are calculated. It can be seen that welding process assisted by vibration increases strength and quality of welding joint.
Highlights
A weld is made when distinct pieces of material to be fused and form one piece when heated to a temperature high enough to cause softening or melting
Vibration can be applied either during or after the process. Researchers are driving their effort to develop the process of arc welding during vibration, i.e. vibration assisted welding (VAW), which can cut most of the costs related to post weld vibrations or heat treatments
There are different modes in which vibration is applied to workpiece such as longitudinal, transverse, vertical and random vibrations. In their oldest available paper, it is reported that the effect of longitudinal vibration on mechanical properties such as yield strength, ultimate tensile strength and hardness [3]. In another investigation, breaking strength, ultimate tensile strength (UTS) and yield strength of specimen made under longitudinal vibratory conditions registered an improvement of [4] and 2% respectively [5]
Summary
A weld is made when distinct pieces of material to be fused and form one piece when heated to a temperature high enough to cause softening or melting. There are different modes in which vibration is applied to workpiece such as longitudinal, transverse, vertical and random vibrations In their oldest available paper, it is reported that the effect of longitudinal vibration on mechanical properties such as yield strength, ultimate tensile strength and hardness [3]. In another investigation, breaking strength, ultimate tensile strength (UTS) and yield strength of specimen made under longitudinal vibratory conditions registered an improvement of [4] and 2% respectively [5]. A twodimensional mathematical model was developed to study the effect of electromagnetically oscillated arc on the microstructure and temperature distribution of bead on plate welds on thin tantalum sheets made through GTA Welding [7]. The ultrasonically VAW electrode could produce more arc pressure in TIG welding [8]
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