ARC Welding

Submerged arc welding (SAW) is a welding method that creates an electric arc under a layer of granulated flux. It was developed in 1935 by the E O Paton Electric Welding Institute. During World War II, SAW was used to manufacture the T34 tank. This process enables deep penetration in joints and reduces distortion. The … Read more

Triple wire submerged arc welding (TWSAW) uses three electrodes for high deposition rates and low heat input. This technique leads to better bead appearance and fewer slag inclusions. TWSAW is ideal for welding thick low-alloy steel plates, improving overall welding quality. ESAB and Lincoln Electric offer specialized submerged arc welding machines and wire feeders. Industries … Read more

Surface contaminants, like oil, dirt, and oxide, can make starting arc welding difficult. These impurities may outgas, which can lead to weld inconsistencies. They also disrupt Automatic Voltage Control (AVC) in keeping the correct arc distance. Cleaning surfaces is essential for achieving strong electrode adherence and stable weld quality. To overcome trouble starting arc welding, … Read more

Plasma Arc Welding (PAW) is a welding process that uses an electric arc between a tungsten electrode and the workpiece. This constricted arc generates intense heat, melting the metal for joining. PAW provides precise control and is ideal for applications requiring high-quality welds, making it a preferred choice in various industries. Applications of Plasma Arc … Read more

To troubleshoot a metal arc welding machine, start by cleaning the feeding set to eliminate dust and metal shavings. Adjust the wire tension as required. Check the parts list for replacement components. Always refer to the owner’s manual for safety procedures and maintenance tips, and ensure you protect yourself from flying sparks. For example, if … Read more

Gas Tungsten Arc Welding (GTAW), or TIG welding, uses a nonconsumable tungsten electrode. It employs a separate filler metal supplied as wire. An inert shielding gas protects the weld from contamination. This effective welding technique works well with various metal types and applications, producing strong, high-quality joints. Beginners should understand the essential components of Tungsten … Read more

Sheet metal arc welding is an electric arc process that melts a metal electrode and bonds it with base metal. Common techniques include Metal Inert Gas (MIG) and Shielded Metal Arc Welding (SMAW). Use a thin electrode, like 6013, and set a low amperage for thin materials. Proper joint preparation ensures strong, quality welds. When … Read more

Shielded Metal Arc Welding (SMAW) is a welding process. It uses a flux-coated electrode to create a weld. The electrode melts, forming a molten weld pool. The burning flux produces gas that protects the weld. SMAW is versatile and is used in many industries. It is simple, portable, and cost-effective. The flux coating generates a … Read more

Gas Tungsten Arc Welding (GTAW), also called TIG welding, uses a non-consumable tungsten electrode to generate an electric arc. An inert gas protects the weld area from contamination. GTAW provides precise, clean, and high-quality welds on various metals, with minimal spatter. It is perfect for critical applications. Techniques in Tungsten Arc Welding vary based on … Read more

Flux Cored Arc Welding (FCAW) is a specific welding process. Other related abbreviations are Gas Metal Arc Welding (GMAW), Gas Tungsten Arc Welding (GTAW), and Plasma Arc Welding (PAW). Each abbreviation refers to a unique welding technique, highlighting the different methods and applications used in welding. Other notable abbreviations include “E71T-1,” which describes a specific … Read more