Transactions of Materials and Heat Treatment

Title：Design and simulation on roll-round stamping die for flat-top chain plate

Authors： Wang Yongming1 2 Tang Chengtao1 2 Liu Shuqing1 2 Tan Libin1 2

Unit： 1.School of Mechanical Engineering Anhui University of Technology 2.Anhui Province Key Laboratory of Special Heavy Load Robot

KeyWords： flat-top chain plate roll-round stamping die design prototype experiment

ClassificationCode：TP385.2

year,vol(issue):pagenumber：2022,47(12):175-181

Abstract：

In order to improve the forming accuracy of roll-round process for flat-top chain plate, a set of roll-round stamping die for flat-top chain plate was designed according to the process requirements. Then, both the upper and lower dies adopt a spliced structure, a hole sizing device was installed between the upper and lower dies, and the key parameters of the die were preliminarily designed. Furthermore, the simulation of the roll-round forming process for chain plate was carried out by software Abaqus, and the equivalent stress and the forming accuracy of chain plate were analyzed. According to the simulation results, the key dimensions of the die were modified. The simulation results show that the position of the maximum equivalent stress on the workpiece is at the coiled circles formed on the left and right sides of the chain plate, which is in line with the actual stress situation of the roll-round forming for chain plate. When the fillet radiuses of upper die for roll-round pin hole and sizing hole are 6.12 and 6.35 mm, respectively, and the fillet radiuses of lower die for pin hole and sizing hole are 6.14 and 6.28 mm, respectively, the simulated chain plate has higher forming accuracy. Finally, the die prototype was made, and the roll-round stamping experiments were carried out. The results show that the qualified rate of workpiece after the roll-round forming is 98%.

Funds：

安徽省重点研究与开发计划项目(202004a05020008)

汪永明（1971-）,男，博士，教授 E-mail：wangym@ahut.edu.cn

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