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Showing posts with the label X ray Inspection.

How is Radiography testing used for finding defects?

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Here we would see How is Radiography testing used for finding defects?For Example look at the RT film here Find the Defect inside the Casting? Answer: Shrinkage – Sponge Shrinkage Shrinkage are volumetric defects caused during solidification of casting after pouring.It is caused due to inadequate metal to fill the shrink areas during cooling. Shrinkage are classified into four types 1) Linear Shrinkage 2) Feathery Shrinkage 3) Sponge Shrinkage and 4) Combined Shrinkage The best non destructive testing method to find the defect is Radiography or X Ray Testing. The given image is Film Radiography image of a steel casting with a hole type IQI placed on the area of interest, where a film sensitivity of 2-2T is achieved. The defect identified in the film is Sponge Shrinkage of level 5 as per reference images given ASTM E446. For best training and certification on Radiography Testing and Film Interpretation. Radiography Testing on defects and services reac...

Why is X ray or radiography testing RT done in industries?

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The metallic or non-metallic components manufactured in industries are possibly having various inherent defects few of which are mentioned below: Casting Defects: – Blow holes, Shrinkage, Porosity, Pipes, Inclusions, Cold shut, Mis-run, Hot tears, segregation. To know more in detail about the causes and types of defects click  https://aqcinspection.com/ndt-for-castings/   Welding Defects: – Undercut, Under fill, Lack of fusion , Lack of Penetration, Excess Penetration, Root Concavity of Suck back, Slag Inclusion, Improper weld bead, Overlap, Crater Pipe, Crater Cracks, HAZ Cracks, Weld Longitudinal or transverse crack, Spatters, Arc Strikes and much more. To know more about the causes & identification of defects click  https://aqcinspection.com/welding-inspection-ndt-services/ These defects have to be identified in the initial stages to avoid major loss to the company, by avoiding processing cost losses. So X ray or Radiography Testing done in industries. Th...