Transactions of Materials and Heat Treatment

Title：Design on multi-station progressive die for aero seat connector

Authors： Wang Wei Li Zhen Zhang He Wu Liyan

Unit： Shenyang Aerospace University

KeyWords： aero seat connector multi-station progressive die layout bending springback

ClassificationCode：TG386

year,vol(issue):pagenumber：2022,47(10):223-228

Abstract：

Based on the shape, size, material and production requirements of aero seat connector, its stamping process was analyzed, and a layout scheme consisting of four blanking stations, four bending stations, two flanging stations, one pressing station, one cutting station and two empty stations was designed, which adopted a single-sided carrier, the step distance was 50 mm and the material utilization rate was 45.1%. A multi-station progressive die was proposed to produce. Because there were many parts in the structure of workpiece need bending, it was difficult to control the springback. Therefore, the springback angle of the material was simulated, the springback amount was considered in the bending, and the die compensation was conducted. Furthermore, in order to facilitate maintenance and disassembly, the straight through special-shaped punch was used and fixed by suspended pins. Then the blanking punches with round holes were fixed by the stepped shoulder structures, the dies adopted the insert block structure, and the positioning pins were used to ensure the accuracy of the die. The production results show that the structure of multi-station progressive die is reasonable, which can meet the accuracy requirements of the part.

Funds：

航空科学基金资助项目（2020Z006054002）

王巍（1978-），女，博士，副教授，E-mail：wangwei7832@163.com

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