Research on Axial Splitting of Thin Wall Tube for Nuclear Power Plant

- Cutting with the Pressing of a Driven Rotary Tool –

Abstract

Wasted tubes from a nuclear power plant must be axially split without generating by-products in order to assess the radioactive contamination before disposition. In this research, cutting method using a driven rotary tool was attempted to apply to it, following our previous study of radial-direction cutting. The cutting behavior with plastic deformation was examined in plate and tube specimens. It was essential that a material pushed out by a tool edge flows perpendicular to the cutting direction and does not bulge outwards.