engleski

NON DESTRUCTIVE TESTING OF FORGE WELDING JOINT ERRORS

Forge welding is a solid state process whereby the melting temperature is not reached. Hammer blows cause permanent deformation and assure metallurgical contact between two elements to be welded together. The main characteristic of the weld is that two surfaces are joined together by whole contact area. That is why, in industrial conditions, an error occurrence is very often. For testing and measuring purposes an experimental aluminium sample has been forge welded. An error has been deliberately created in welding process, with previously known dimensions and characteristics. This work compares two possible non destructive testing techniques for such weld type: Computed Tomography – CT and Computer Radiography – CR and gives recommendation for its usage.

Forge Welding ; Non Destructive Testing ; Computed Tomography ; Computer Radiography

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