Análisis comparativo de la soldabilidad bajo la norma AWS C3.6M de tuberías de aluminio y cobre con soldadura indirecta de metales por horno (FB) usado en sistemas de refrigeración.

Abstract

This project is a study whose primary objective is to analyze and compare the weldability of aluminum and copper pipes with applications in refrigeration with the indirect welding process by furnace, identifying its essential parameters, such as filler material, flux, time and temperature of the process, thus guaranteeing the obtaining of welded joints that have acceptable mechanical properties. To fulfill the purpose of this project, the document first established a theoretical framework of indirect furnace welding to get an idea of how the process is and everything related to aluminum and copper, then a procedure was established to execute the welds of the Al and Cu pipes, according to the bibliography, to qualify the procedure, the Al, Cu and Al-Cu specimens were subjected to destructive tensile and peeling tests according to the ASME code section IX part QB, all this complemented with a metallographic analysis to be able to analyze the results obtained from all the tests carried out on the specimens and see which of the three types of specimens comply with the code requirements, in order to establish a qualification of the indirect welding procedure performed that certifies a resistant welded joint that meets the requirements for which it was designed.