Please use this identifier to cite or link to this item:
Title: Bulk-forming simulation of bimetallic watchcase components
Authors: Kong, TF
Chan, LC 
Issue Date: 2014
Publisher: Springer
Source: JOM : journal of the Minerals, Metals & Materials Society, 2014, v. 66, no. 10, p. 2145-2155 How to cite?
Journal: JOM : journal of the Minerals, Metals & Materials Society 
Abstract: This article presents a study of the effects of process parameters in bulk-forming bimetallic watchcase components using finite-element (FE) simulation. This study aimed to determine the suitable forming temperature T and ram speed S for attaining the complete die filling of bimetals. A complicated watchcase component made of 3-mm-thick AISI 316L stainless steel (SS316L) and 6-mm-thick 6063 aluminum alloy (AA6063) was used as the example. The processes were simulated with T of 400 degrees C, 500 degrees C, 600 degrees C, 700 degrees C, 800 degrees C, and 900 degrees C and S of 20 mm/s, 40 mm/s, and 60 mm/s. Although the AA6063 was not heated in the beginning, it flowed faster than the SS316L during the process, and hence, the incomplete die filling was found mainly in the SS316L region. To avoid the incomplete die filling and strengthen the intermetallic bond between two dissimilar metals, the T of 900 degrees C was suggested. The S of 40 mm/s was recommended also because this could save much forming energy and prevent the damage of tools. The experimental verification was carried out under process conditions that were employed in the simulations. An infrared thermal imaging camera and a 300-ton mechanical press were used to monitor the T and testify the bulk-forming operation, respectively. The data acquired from the experiments, on average, agreed strongly with those predicted by the simulations. On the basis of the results in this study, engineers can gain a better understanding of bulk-forming bimetallic components and be able to determine the T and S efficiently for similar processes.
ISSN: 1047-4838 (print)
1543-1851 (online)
DOI: 10.1007/s11837-014-1124-7
Appears in Collections:Journal/Magazine Article

View full-text via PolyU eLinks SFX Query
Show full item record

Page view(s)

Last Week
Last month
Citations as of Aug 20, 2018

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.