Mechanical performance and microstructure of near-unthinned die-less spinning using ball-crown-shape roller

The high flexibility of die-less spinning has great potential for industrial applications. The severe wall thinning of die-less spinning can be suppressed using the ball-crown-shape roller (BCSR). However, the mechanical properties of the spun parts need to be investigated. In view of this, a truncated cone was formed by die-less spinning using the BCSR, and the mechanical performance and microstructure of the spun workpiece were investigated....