Flexible clamp stretch forming experiment of saddle part was conducted to widen the applications of flexible clamp to multi-point stretch forming. The edge line of formed part gets curved

which verifies the feasibility of flexible clamping technology. The thickness and diameter along the length direction of marked circles are calculated. The multi-point stretch forming process of saddle part with flexible clamp is simulated

the numerical results show that the discrete clamp is able to realize the goal of flexible clamping

and the stress

stretching strain and thickness of saddle part are uniformly distributed. A comparison between the experimental and numerical results shows that the length stretching ratios of all marked circles trend to distribute similarly

the maximum deviation is 0.21%; the thickness thinning ratios of all marked circles do so

and the maximum deviation of thickness thinning value is 0.02 mm.