Die design in fine-piercing process by chamfering cutting edge

Conference proceedings article

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Yiemchaiyaphum S., Masahiko J., Thipprakmas S.

ผู้เผยแพร่: Trans Tech Publications

ปีที่เผยแพร่ (ค.ศ.): 2010

Volume number: 443

หน้าแรก: 219

หน้าสุดท้าย: 224

จำนวนหน้า: 6

ISBN: 0878492674; 9780878492671

นอก: 1013-9826

eISSN: 1662-9795

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-77955457598&doi=10.4028%2fwww.scientific.net%2fKEM.443.219&partnerID=40&md5=9567d7cc9e883a55e73c0c2d0da2eb3c

ภาษา: English-Great Britain (EN-GB)

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บทคัดย่อ

The hole quality on sheet metal parts is directly dependent on the die design and process parameters. In conventional piercing process, the secondary operations such as shaving, reaming and grinding are needed for manufacturing the precise-dimensioned holed parts without any cracks, resulting in the increase of both production time and costs. The fine-piercing process, referenced to the fine-blanking principle, is used to produce the precise-dimensioned holed parts with smooth-cut surfaces over the whole material thickness in a single operation. However, it is difficult to achieve the suitable die design and process parameters for meeting the part requirements. In this study, the die design by chamfering punch cutting edge was investigated on both the experiments and the finite-element method (FEM). The results were compared with the results obtained when the conventional die design with the punch cutting-edge radius was used. The FEM-simulation results showed the amount of die-roll, smooth-cut surface, and cracks agreed well with the experimental results. The results showed that an application of punch cutting-edge chamfer results in a superior fine-pierced hole surface could be achieved. Furthermore, the mechanism and effects of the punch cutting-edge chamfer have been theoretically clarified on basis of the material-flow analysis and stress distribution. ฉ (2010) Trans Tech Publications, Switzerland.

คำสำคัญ

Chamfering, Fine-piercing, Smooth-cut surface