Welding

What is Welding Defects – Types, Causes and Remedies?

What is Welding Defects? Welding Defects can be defined as the irregularities formed in the given weld metal due to wrong welding process or incorrect welding patterns, etc. The defect may differ from the desired weld bead shape, size, and intended quality. Welding defects may occur either outside or inside the weld metal. Some of …

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How Shielded Metal Arc Welding (SMAW) Works?

Shielded Metal Arc Welding (SMAW) is also called Manual Metal Arc Welding (MMAW) or flux shielded arc welding or popularly known as stick welding. In SMAW we generally use consumable types of electrodes. Consumable electrode means flux covered on the rod. Because of flexibility and simplicity, SMAW is the world’s best welding process. It is …

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Friction Stir Welding – Working Principle, Advantages, Disadvantages with Application

Introduction: Friction stir welding (FSW) is a solid-state joining process. Solid-state welding means that there is no molten state included in joining or welding the workpiece. This joining technique saves energy and is eco-friendly. It is mostly used to weld aluminum materials in the automobile and aerospace industries. The FSW is the process in which …

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Explosive Welding – Equipment, Types, Working, Advantages and Disadvantages with Application

Explosive Welding (EW) is a solid state welding process i.e. this process does not include molten state during welding the different parts of metal which have to be welded. This method was developed in the decades after the World War II. Dupont applied for the patent of this welding process in 1962 which was granted on …

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What is Friction Welding Process and How it Works?

Friction Welding (FRW) is a solid-state welding process which means that in this process heat is not provided from outside the system and no molten state of metal is present in this process. In this welding, process heat is generated by mechanically induced friction by sliding a workpiece on another part of it. After some …

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Electroslag Welding Process – Principle, Main Parts, Working, Advantages and Disadvantages with Application

Electroslag Welding Process is a process in which the job is welded through the molten slag covering which is a result of a high quantity of heat which is generated by the circulation of electric current through the electrode and the job. Robert K Hopkins discovered this welding process in February 1940 at Paton Institute, …

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