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

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td align="left"> </td><td align="center">Contact interface</td><td align="center">Friction coefficients</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td align="left">1</td><td align="center">Tube-bending die</td><td align="center">0.1</td></tr><tr><td align="left">2</td><td align="center">Tube-pressure die</td><td align="center">0.25</td></tr><tr><td align="left">3</td><td align="center">Tube-clamp die</td><td align="center">Rough</td></tr><tr><td align="left">4</td><td align="center">Tube-wiper die</td><td align="center">0.1</td></tr><tr><td align="left">5</td><td align="center">Tube-mandrel</td><td align="center">0.05</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Friction coefficients in various contact interfaces.

Advances in Materials Science and Engineering

tab2

Table 2

Table 2: Effect of Mandrel on Cross-Section Quality in Numerical Control Bending Process of Stainless Steel 2169 Small Diameter Tube 