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Types of welding processes

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D&H Secheron Electrodes Pvt Ltd offers a wide range of Low Heat Input Consumables in India. We produce low heat input consumables whose applications are across varied industries. Best suited for welding and repairing of all cast iron components best suited for welding and repairing of all cast iron components.

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Types of welding processes

  1. 1. Types of Welding Processes SMAW Welding
  2. 2. Introduction • Welding is a fabrication or sculptural method that joins materials, typically metals or thermoplastics, by using high heat to soften the components along and allowing them to cool down inflicting fusion. Welding is distinct from lower temperature metal-joining techniques like brazing and soldering, that don't soften the base metal. • In addition to melting the base metal, a filler material is usually added to the joint to create a pool of molten material (the weld pool) that cools to form a joint that, supported weld configuration (butt, full penetration, fillet, etc.), is stronger than the base material (parent metal). Pressure can also be utilized in conjunction with heat, or by itself, to produce a weld. Welding also requires a form of shield to protect the filler metals or melted metals from being contaminated or oxidized.
  3. 3. • Here are different welding Processes. • 1. Shield Metal Arc Welding (SMAW) • With this specific form of welding, the welder follows a manual method of stick welding. The stick uses an electrical current to make an electric arc between the stick and the metals to be joined. This sort is usually used in the construction of steel structures and in industrial fabrication to weld iron and steel. • 2. Gas Metal Arc welding (GMAW) • MIG welding is the second preferred welding technique used these days. MIG stands for Metal inert gas welding and it boil all the way down to the concept of combining 2 items of metal together with a wire that's connected to an electrode current. The wire then passes through the welding stick that is shielded by an inert gas. • Some of the benefits that MIG welding offers over the other welding techniques include easy use and also the lower degree of preciseness that's needed by the operator so as to get decent welds. However, MIG welding sometimes finally ends up being a bit more sensitive to external factors like wind, rain and dirt and usually more settings like voltage and wire speed need to be finely tuned by the operator. The two most typical quality issues related to Metal inert gas welding are dross and porosity. If these aren't taken care of properly, welds would possibly end up being structurally weaker than their TIG counterparts.
  4. 4. • 3. Submerged Arc welding (SAW Welding) • Used mostly on ferrous steel and nickel-based alloys, Submerged Arc welding is rather common Arc welding technique because of its minimal emissions of welding fumes and arc lights, creating it safer than most welding processes. SAW leads to deep weld penetration, and involves minimal preparation, creating it a fast and efficient type of welding. • 4. Flux Cored Arc welding (FCAW) • This was developed as an alternate to shield welding. The semi-automatic arc weld is usually utilized in construction projects, because of its high welding speed and portability. • 5. Gas tungsten Arc Gas welding (GTAW/TIG) • Welding together thick sections of stainless-steel or non- ferrous metals is the most common use for this methodology. It’s also an arc-welding method that uses a tungsten electrode to produce the weld. This method is way longer intense than the other SMAW Welding, GMAW Welding, SAW and FCAW also far complicated too.
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