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Month: June 2026

# HOW IMPORTANT ARE GLOVES FOR THE WELDER?

Hands are one of the most important parts of the human body; they belong to one of the…

# WHAT METHODS EXIST FOR CALCULATING PREHEAT IN A WELDED JOINT? There are several methods for calculating preheat temperature in welded joints. The most widely used are described below: — ## 1. METHOD BASED ON CARBON EQUIVALENT (CE) This is the most common method. It evaluates the hardenability of steel through empirical formulas. ### IIW Formula (International Institute of Welding): $$CE = C + frac{Mn}{6} + frac{Cr+Mo+V}{5} + frac{Ni+Cu}{15}$$ ### Ito-Bessyo Formula (Pcm – Cold Cracking Parameter): $$P_{cm} = C + frac{Si}{30} + frac{Mn+Cu+Cr}{20} + frac{Ni}{60} + frac{Mo}{15} + frac{V}{10} + 5B$$ — ## 2. AWS D1.1 METHOD The Structural Welding Code

One factor that controls the microstructure of the heat-affected zone (HAZ) and the weld metal is the cooling…

WHAT TYPE OF ALLOY IS KNOWN AS HASTELLOY?

The registered name Hastelloy derives from the company name Haynes Stellite Alloys, which in 1920 developed the nickel…

WHAT IS THE HARDNESS TEST USED FOR?

Technical definition of Hardness: “The greater or lesser resistance that a body opposes to being scratched or penetrated…

PROCESOS SOLDADURA

PROCESOS SOLDADURA

# THE 50 MOST COMMON TERMS AND DEFINITIONS IN WELDING — 1. Welding – A metal joining process in which coalescence is produced by heating the base metal to a suitable temperature, with or without the application of pressure and filler metal. 2. Base Metal – The metal or alloy that is welded, cut, or brazed. 3. Filler Metal – The metal added during welding, brazing, or cutting to form the weld bead or joint. 4. Weld Bead – The deposited filler metal on the workpiece resulting from a welding pass. 5. Welding Arc – An electrical discharge maintained between the electrode and the base metal that generates the heat necessary for welding. 6. Electrode – A component of the welding circuit through which current is conducted to the arc, molten slag, or base metal. 7. Flux – A material used to prevent, dissolve, or facilitate the removal of oxides and other undesirable substances formed during welding. 8. Shielding Gas – A gas

Terms and definitions in welding are a fundamental communication tool; below are the 50 most commonly used terms…