Explain the various factors that affect the quality of a weld?
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The quality of a weld is influenced by several factors. The parameters that have a significant impact on weld quality include arc voltage, welding current, wire feed rate, and travel speed . The addition of nitrogen, heat input, and filler metals also affect the microstructure and mechanical properties of the weld . In MIG welding, welding current, welding voltage, gas flow rate, and wire feed rate play a crucial role in determining the weld strength, ultimate tensile strength, and hardness . In submerged arc welding, input parameters such as arc current, feed rate, travel speed, electrode diameter, voltage, stick out, and electrode angle affect the quality of the weld, including penetration, bead width, reinforcement, tensile strength, impact strength, and hardness . In shielded metal arc welding and metal inert gas welding, welding power sources, shielding gas, welding consumables, and the skill of the welders are important factors that govern weld quality .
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3 Citations | The paper states that some of the important factors that affect the quality of a weld in shielded metal arc welding (SMAW) and metal inert gas (GMAW) processes are welding power sources, role of shielding gas (for GMAW process), welding consumables, and skill of the welders. |
| The paper discusses that the quality of a weld is affected by factors such as penetration, bead width, reinforcement, tensile strength, impact strength, hardness, microstructure, heat-affected zone, and heat input. | |
| The paper states that the welding parameters, such as welding current, welding voltage, gas flow rate, and wire feed rate, are the factors that affect the quality of a weld. | |
| The paper discusses that the quality of a weld is affected by factors such as arc voltage, welding current, wire feed rate, travel speed, torch angle, CTWD, gas flow rate, and heat input. | |
| The paper discusses the effect of nitrogen addition, heat input, and filler metals on the quality of weldments. It also mentions the influence of shielding gas mixtures on the microstructure and mechanical properties of welds. |
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