Research on the End Effect of Cylindrical Parts

Through the forming of large and thick sheet metal cylindrical parts, it was found that symmetrical abnormal arching defects appeared at both ends of the first and tail ends in the length direction. In response to this phenomenon, the finite element simulation verification and comparison of the two processes of multi-point mold forming and integral mold forming are carried out. The analysis results show that this kind of end effect exists in both the multi-point mold forming and the overall mold forming process, and the overall mold forming effect is better. The multi-point mold has a small springback in the length direction, which is versatile and compatible.