Transactions of Materials and Heat Treatment

Title：Cumulative deformation process for plate

Authors： Pan Lidong1 Guo Yongqiang2 3 Li shuo2

Unit： 1.China Machinery Fine Blanking Technology (FuJian) Co. Ltd. Yangzhou Branch 2.Beijing Research Institute of Mechanical & Electrical Technology Co. Ltd.CAM 3.School of Materials Science and Engineering University of Science and Technology Beijing

KeyWords： accumulative deformation process stable deformation zone plate forming extrusion forming integrated forming

ClassificationCode：TG376

year,vol(issue):pagenumber：2023,48(12):105-110

Abstract：

The integrated forming of plates with characteristic ribs was researched, and a cumulative deformation process for plates was proposed. Then, the principle was to introduce a reverse extrusion punch under the movement of the forward extrusion punch and achieve the overall forming of workpiece by controlling the deformation zone to achieve cumulative deformation of material. Then, through finite element simulation, the cumulative deformation process was analyzed, it was found that the instability depression definitely appeared after the height of the deformation zone exceeded 10.8 mm, and when the speed ratio of the reverse extrusion punch to the forward extrusion punch was 3/5, the cumulative deformation effect was good. Based on the research results of orthogonal experiments, the influence rules and significance of extrusion speed, material temperature, mold fillet and friction factor on the height of the controlled deformation zone were summarized, and it was concluded that during the operation process of the short-stroke punch, the factor that had the greatest impact on this process was the heating temperature of material. Finally, the process model was experimentally verified, and the development of the cumulative deformation process for plate has guiding significance for the integrated forming of workpieces with integrated functions such as plate forming characteristic ribs.

Funds：

作者简介：潘立栋（1996-），男，硕士研究生 E-mail：pld63639873@163.com 通信作者：郭永强（1984-），男，博士，教授 E-mail：guoyq@brimet.ac.cn

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