Influence of axial feeding amount on internal high pressure forming quality of torsion beam parts
The effect of axial feeding amount on high pressure forming quality(forming wall thick-ness distribution and forming accuracy)of CP800 torsion beam was studied,the results showed that axial feeding could improve the wall thickness distribution and forming accuracy of torsion beam,but too much feeding would cause wrinkles in the joint area and affect the forming quality.When the axial feeding amount was 12 mm,the maximum thinning rate was 8.3%,and the dimen-sional accuracy of the whole torsion beam was within 0.5%,which met the design requirements of the parts.
internal high pressure formingaxial feedingtorsion beamforming accuracy