Welding current is one of the most critical parameters in arc welding, especially in SMAW (Shielded Metal Arc Welding). In this video, we clearly explain the difference between low welding current, high welding current, and correct welding current using realistic visuals. 🔹 Low Welding Current Problems: – Unstable arc – Poor penetration – Lack of fusion and cold lap – Weak weld joint 🔹 High Welding Current Problems: – Excessive spatter – Undercut along weld toe – Burn-through – Distorted base
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Welding current is one of the most critical parameters in arc welding, …
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🔧 Common Welding Defects – Causes & Prevention Visit weldfabworld.com Follow Technical Master Welding defects can seriously affect strength, safety, and service life of structures. Understanding their causes and preventive measures is essential for welders, inspectors, and QA/QC professionals. --- 🔹 1. Porosity 🧑‍🏭🧑‍🏭 Description: Small gas holes trapped in weld metal. Causes: Moisture, contamination, improper shielding gas. Prevention: Clean base material, dry electrodes, correct gas flow
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🔧 Common Welding Defects – Causes & Prevention Visit weldfabworld.c…
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P Number, F Number and A Number in welding (ASME Section IX) | Welding & NDT
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Most weld failures don’t occur in the weld metal—they occur in the Heat Affected Zone (HAZ). Visit weldfabworld.com Follow Technical Master HAZ is the area of base metal that is not melted but undergoes metallurgical changes due to welding heat. Grain growth, increased hardness, and reduced toughness can make this zone critical. Proper control of heat input, correct welding parameters, and post-weld heat treatment are essential to maintain weld integrity. Understanding HAZ helps welders, enginee
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