The influence of bending on weld joint integrity of Refrigeration Tube using x-ray Technique

Abstract

In this investigation bending is applied on pure copper pipe with a weld joint made by oxyacetylene welding method to access the integrity and soundness of the weld joint under this type of mechanical testing, the chemical composition inspection of pipes metals is confirmed that is a pure copper (99.96% Cu). Pure copper is known to be weld able and can produce a weldment with good mechanical properties. High achievement weld joint resistance under bending without any evidence of surface defects and internal discontinuities that was confirmed by applying a liquid penetrant examination for the weld surfaces and also using x-ray test to detect internal defects. All tests’ processes were confirmed that, all weld rejoin is free from all possible discontinuities after performing bend testing.