17 June 2022


blogs

Material Testing

Material testing Mechanical testing  have been designed to test several weld properties.Few other material testing techniques are Charpy V-Notch Toughness: Notch toughness is the capacity that a material possesses to absorb energy in the presence of a flaw, such as a notch or crack. The material will…
Mechanical testing
10 June 2022


blogs

Mechanical Tests – Tensile Test – Impact test

Mechanical tests. Mechanical tests (exclusive of hardness) have been designed to test several weld properties. 1.    Tensile Test:    Tensile tests are conducted on specimens machined from a test weld and are used to measure the strength of the weld joint. Specimens are usually taken perpendicular to…
Non Destructive Testing
3 June 2022


Training

NDT institutes in Coimbatore

NDT Training: AQC- Advanced Quality Centre – NDT Institutes in Coimbatore provide World class trainings, certifications & online courses for Non-Destructive Testing, Welding Inspections, Painting Inspections, welding course in Coimbatore, safety trainings & Industrial testing services. The trainings are provided by engineers experienced in…
welding procedure
27 May 2022


blogs

Welding Safety

Welding Safety with Gas Cylinders On an oxyacetylene system there will be three types of valves, the cylinder valve, the regulator valve, and the torch valve. There will always be a set of three valves for each system, since  the gas in the cylinders is…
Welding procedure specification
18 May 2022


blogs

Safety and Precautions during welding

As in any welding process, safety precautions are very important. All information relating to the safe operation of the welding equipment and process must be fully understood before beginning work. A careless welder who does not observe some simple rules can cause a dangerous situation…
Standards on piping inspection
7 May 2022


blogs

Pipe Line Isometric Drawings and P & ID Drawings

Pipe Isometrics : Are drawings which shows details of Process pipe lines in a single line presentation , with details of pipes, pipe connections ( valves, flanges, nipples, reducers, end cap, elbow, etc), along with the dimensions and direction of  pipe line. Example of a…
Welder Qualification
3 May 2022


blogs

Weld crack

Weld crack   1.1. Cracking: If a weld crack is found, it must be removed and magnetic-particle inspection performed to ensure every point has been removed before re-welding. Weld Crack can occur on top of a weld…
welding institute
23 April 2022


blogs

Dissimilar metal in TIG Welding process

Why use this TIG welding process: TIG Tungsten Inert Gas otherwise called as GTAW- Gas Tungsten Arc Welding , Involves melting the metal using the arc created by tungsten electrode, The welding can be done with or without filler metal, Argon Gas is used as shielding around…
welding symbols
20 April 2022


blogs

WELDING PROCEDURE FOR JOISTS

WELDING FOR JOISTS AND FINISHING OF MACHINING RAILS Unless otherwise authorized by the engineer, any welding to the top flange of steel members for supporting floor form joists and finishing machine rails will not be permitted. Welding of hangers and supports to shear studs will…
NDT testing
9 April 2022


blogs

NDT Methods Selection

NDT Method Selection: The NDT (nondestructive testing) methods are:   Visual Inspection – VT Liquid Penetrant Testing – LT Magnetic Particle Testing – MT Radiographic Testing – RT Ultrasonic Testing – UT Eddy Current Testing – ET (not used in field inspection) Acoustic Emission Testing –…