Influence of geometric and loads parameters on excessive thinning and planning during tube bending process.

• Jorge Luis Hurtado Instituto Universitario Experimental de Tecnología de La Victoria-Venezuela
• Jorge Moya Rodríguez Universidad Central “Marta Abreu” de Las Villas-Cuba
• Javier Cárdenas Instituto Universitario Experimental de Tecnología de La Victoria-Venezuela

Palabras clave: rotary draw bend of tubes, defects

Resumen

Tube bending is a process used in various industrial applications. There are different methods for this purpose; one of them is rotary draw bending of tubes. During this process occur deformations of the cross section of pipe that cause variations in the thickness of the wall and on the radio. A procedure for analyzing the influence of axial effort and internal pressure to reduce defects is showed in this paper. A new mathematical model and its evaluation using software are discussed.