Sheet metal forming analysis of an automotive part using finite element simulation

Conference proceedings article

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Suranuntchai S., Kritboonyarit P.

ผู้เผยแพร่: Trans Tech Publications

ปีที่เผยแพร่ (ค.ศ.): 2012

Volume number: 120

หน้าแรก: 11

หน้าสุดท้าย: 14

จำนวนหน้า: 4

ISBN: 9783037852811

นอก: 1660-9336

eISSN: 1662-7482

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-81255214783&doi=10.4028%2fwww.scientific.net%2fAMM.120.11&partnerID=40&md5=413a6f35965a8f90304177b872982e7d

ภาษา: English-Great Britain (EN-GB)

ดูในเว็บของวิทยาศาสตร์ | ดูบนเว็บไซต์ของสำนักพิมพ์ | บทความในเว็บของวิทยาศาสตร์

บทคัดย่อ

The purpose of the present research is to investigate and improve the quality of car brake booster deformed under drawing processes by using Finite Element (FE) program known as AutoForm. The materials are made from SPC270F with thickness 1.4 mm. and the initial diameter of 280 mm. The brake booster requires totally 9 production processes, including the sheet blanking, in the manufacture. Failure has found in the 4 th draw in which cracking occurs at the bottom of cylinder. The material property assumed to be anisotropic, behaved according to Ludwik's equation, and deformed rigid-plastic, which followed Hill's yielding surface. The deformation for Forming Limit Diagram (FLD) was predicted by Keeler equation. Punch and die were assumed to be rigid during simulation. In this work, the process improvement focus mainly on the smallest change in die design which no lubricant required during the drawing processes. From the predicted results, the recommended punch diameter for the 1 st draw should be extended to 111.4 mm while the new design for die's diameter in the 1 st draw is as large as 103 mm. However, punch's height and its radius need to be varied in order to prevent the wrinkle as well. Since there is a little change in the new design while no more lubrication is required during the draw process, its can be improved in quality of finish product, cost reduction in lubricant consuming as well as the machining time to make a new punch.

คำสำคัญ

Autoform, Car brake booster, Sheet metal forming