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NDT – Few Other Methods
Here are some rarely used NDT – Few Other Methods 1. Eddy Current Testing – ET: Eddy-current inspection uses electromagnetic induction to detect flaws in conductive materials. A circular coil carrying current is placed in proximity to the test specimen (electrically conductive). The alternating current in…
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Non destructive Testing (NDT)- Common Methods
Non destructive Testing (NDT)- Common Methods are: Visual Inspection – VT Liquid Penetrant Testing – LT Magnetic Particle Testing – MT Radiographic Testing – RT Ultrasonic Testing – UT 1. Visual Inspection – VT: Visual inspection after welding is very useful in evaluating quality, even if…
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Acceptance Criteria for Ultrasonic Testing
How to interpret Acceptance Criteria for Ultrasonic Testing as per AWS D1.1 The Requirements of Ultrasonic Flaw detector equipment as per AWS D1.1 Structural Steel Welding code is given below: Equipment: The ultrasonic equipment’s shall be pulse echo type ‘A’ scan suitable for use with transducers…
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ISO Standards for Ultrasonic Testing
Ultrasonic Testing In Ultrasonic Testing we use something called “Ultrasonic Vibrations” we must know two facts about a vibration: A vibration is a back and forth movement. A vibration is energy in motion A depression of a surface from its normal position is called a displacement.
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What is Ultrasonic Thickness Testing ?
Ultrasonic Testing Ultrasonic Testing utilizes high frequency sound waves which are not audible to human ears. The Ultrasonic sound waves are used for measurements of thickness of any material. General frequency used in ultrasonic thickness measurements probe is 5 Mega Hertz and above. The probe is placed over…
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Principle of Ultrasonic Testing
This blog will let you know about the principle of Ultrasonic testing What is Ultrasonic Testing? Ultrasonic Testing Uses high frequency sound energy to conduct examinations & make measurements. It can be used for flaw detection, Dimensional measurements.
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Ultrasonic Testing for materials
What is Ultrasonic Testing? ULTRASONIC TESTING is a method for sending ultrasound into material and analyzing the returning sound waves for defect free components. It use scanning devices called probes. After application of Couplant over the material surface probe is place over the material. The sound travels…
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Ultrasonic testing of Weld Joints
Ultrasonic Testing involves utilization of ultrasonic sound waves to detect defects inside a material. The welded joints have possibilities of defects inside the welds , or sometime near the weld zone. The few of defects that are often found in welds are Porosity, Cracks, Slag Inclusion,…
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