The Forming Analysis of Inner Straight Groove Copper Pipe under Different Spinning Speed

Aiming to explain forming mechanism of copper pipe workpiece with inner straight groove via ball-rolling at different spinning speeds, the copper pipe workpiece and straight die is modeled in ABAQUS. And the whole simulation includes forming process, analysis of strain and stress. It is concluded that in the process of ball-rolling, the deformation of copper pipe workpiece is mainly the axial and teeth groove radial; with rotary extrusion increasing, the equivalent strain and stress enlarge gradually. Under the premise of keeping the quality of production, the maximum spinning speeds is 24000 r/min, which will not lose steady and complete the whole operation successfully. The simulation data and conclusion supply the basis for the actual processing.