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Inspection and Testing


INSPECTION AND TESTING-
In engineering activities inspection involves the measurements, tests, and gauges applied to certain characteristics in regard to an object or activity. The results are usually compared to specified requirements and standards for determining whether the item or activity is in line with these targets, often with a standard inspection procedure in place to ensure consistent checking. Inspections are usually non-destructive

 Non-Destructive Testing in great variety are in worldwide used to detect variations in structure, minute changes in surface finish, the presence of cracks or other physical discontinuities, measure the thickness of materials and coatings and to determine industrial products.

Some of the most common NDT methods are
Destructive tests on raw materials, welded joints are usually made as part of the approval OF material/ welding procedure or a welder.
Commonly used destructive tests are:
  1. HARDNESS 
  2. BEND 
  3. TENSILE 
  4. CHARPY 
  5. FRACTURE TESTS 
  6. MACRO SECTION 
















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FILLET WELD FRACTURE TEST

FILLET WELD FRACTURE TEST Object :  To break the joint through the weld to permit examination of the fracture surfaces for flaws and to check root penetration and fusion. Method: The specimen is cut to length and a saw cut, normally 2 mm deep, is made along the center of the weld face. The specimen is fractured by bending or hammer blows. Reporting Results: Thickness of parent material.  Throat thickness and leg length.  Location of fracture. Appearance of joint after fracture. Depth of penetration / lack of penetration or fusion.
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