Effect of Mandrel on Cross-Section Quality in Numerical Control Bending Process of Stainless Steel 2169 Small Diameter Tube

<table>Effect of mandrel type on cross section quality: (a) wall thinning; (b) cross section deformation.</table>

Advances in Materials Science and Engineering

Figure 7: Effect of Mandrel on Cross-Section Quality in Numerical Control Bending Process of Stainless Steel 2169 Small Diameter Tube 