Achieving nearly zero earing defects on cylindrical drawn cups with the zoning lubricant technique

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Thipprakmas, Sutasn; Jankree, Rudeemas

ผู้เผยแพร่: SAGE Publications

ปีที่เผยแพร่ (ค.ศ.): 2023

วารสาร: Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering (0954-4089)

Volume number: 235

Issue number: 9

หน้าแรก: 1351

หน้าสุดท้าย: 1362

นอก: 0954-4089

eISSN: 2041-3009

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85162968921&doi=10.1177%2f09544089231174297&partnerID=40&md5=0ba43b5916f5e159a0f2ba4aea436e64

ภาษา: English-Great Britain (EN-GB)

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บทคัดย่อ

Earing has been a major issue in the deep-drawing process, especially for cylindrical cups. The additional work required to fabricate the cylindrical cup according to its specifications is frequently caused by these defects. Only a few methods have been developed to eliminate these defects, despite knowing the origin of these defects to be the material's anisotropic mechanical property (R-value). In this study, we proposed a zoning lubricant technique to achieve practically zero earing defects by applying a varied friction coefficient in relation to the R-value. This technique was examined based on experimental work and the finite-element method (FEM). The deep-drawing process for achieving practically zero earing defects was evident based on the FEM simulation findings. This resulted in practically no earing defects being discovered, and earing defects were avoided as a result of these characteristics. However, to accomplish almost zero earing defects, the proper design of zoning lubricant uses connected to the R-value should be properly considered. According to these findings, a smaller friction coefficient should be placed along the plane and at 90° to the rolling direction, whereas a larger friction coefficient should be positioned at 45° to the rolling direction. Furthermore, it was initially discovered in the current investigation that the use of zoning lubricant could successfully execute the procedure with nearly zero earing defects. © IMechE 2023.

คำสำคัญ

cylindrical cup, Deep-drawing, earing, Lubricant