Theoretical and Practical Evaluation of Plastic Deformation and Straining Throughout Cupping the Shells of Domestic LPG Cylinders

This paper covers the theoretical and practical evaluation of straining which arise due to stressing, and plastic deformation during the deep drawing process of the production of the shells for LPG cylinders, as well as the process description and application. Therefore the study includes experimental work in the field of metal drawing in stages for different depths to tabulate the radial metal movement and changes in shell thickness and diameter. As the annealing treatment has an important role in the production sequence, so samples of metal used in producing the domestic LPG cylinder were heat treated in different situations to study the influence of an annealing operation on the metal (its microstructure, metallurgical, and mechanical properties).