High speed sliding of rotating band engraving process

Abstract

The dynamic characteristics of rotating band engraving process are greatly affected by the friction behavior between the rotating band and barrel, for the shear stress determines the material flow pattern, meanwhile, the heat generated by friction accumulates on the surface and softens the material near the interaction surface. This paper presents a simulation to analyse the rotating band engraving process of large caliber rifled guns. A new temperature dependent friction stress model is introduced to calculate the friction behavior between the rotating band and barrel. The model considers shear strength of the material by using equation derived from the Johnson-Cook constitutive model. The contact pressure, temperature distribution and some dynamic characteristics can be obtained from the simulation, the results are in good agreement with those from references.