Finite element analysis of piping defect formation in the sheet-extrusion process

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Phanitwong W., Thipprakmas S.

ผู้เผยแพร่: World Scientific Publishing

ปีที่เผยแพร่ (ค.ศ.): 2015

วารสาร: International Journal of Modeling, Simulation, and Scientific Computing (1793-9623)

Volume number: 6

Issue number: 1

นอก: 1793-9623

eISSN: 1793-9615

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84928395788&doi=10.1142%2fS1793962315500105&partnerID=40&md5=190cb1d47726178b4a35b2cd9cf2c399

ภาษา: English-Great Britain (EN-GB)

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บทคัดย่อ

The pressing process, as compared to the machining process, makes good utilization of work piece material and shortens the production time, and as such it is increasingly used for production of complex shaped parts. A particular type of pressing is sheet-extrusion which controls the flow of material into special punch and die sets to produce an extruded shape. However, some particularly complex shaped parts cannot be made by sheet-extrusion due to the formation of piping defects. In this study, the finite element method (FEM) was used to investigate the formation of piping defects. In addition, the relationship between the characteristic dimensions of the extruded shape and the piping defect was also examined. Laboratory pressing experiments were performed to validate the accuracy of the FEM simulation results. Based on the stress distribution and velocity profiles within the extruded work piece, the relationship between the extruded shape and the piping defect was clearly identified. Furthermore, the FEM simulation results showed good agreement with the experimental results with regards to the dimensions of the extruded shape and the piping defect. ฉ 2015 World Scientific Publishing Company.

คำสำคัญ

piping feature, Sheet-extrusion