Paper Title:
Semi-Enclosed Cold Forging Process Analysis and Progressive Die Design of CPU Fin
  Abstract

This paper analyzes the forming process methods of fin used in CPU chip to emit heat. The whole process is blanking, the first forging forming, the second forging (sizing), and trimming. The chamfer design of CPU fin blank is simulated by finite element analysis. The optimized chamfer 1.6 mm is available. Semi-enclosed cold forging of progressive dies is put forward. The newly designed transfer unit is applied, which unifies the merit of high efficiency of the progressive dies and the high material-using ratio of the project die. Quick disassembly structure is designed and pins are used as quick disassembly pins by means of ball bearing bushing. The unique processing of the shearing scrap structure is adopted when designing the inverted trimming dies. Compared with the traditional die, the mechanization and electrization are realized to increase the production efficiency and get highly precise CPU fin.

  Info
Periodical
Materials Science Forum (Volumes 575-578)
Edited by
Jitai NIU, Zuyan LIU, Cheng JIN and Guangtao Zhou
Pages
174-179
DOI
10.4028/www.scientific.net/MSF.575-578.174
Citation
J. H. Su, F. Z. Ren, L. Wang, "Semi-Enclosed Cold Forging Process Analysis and Progressive Die Design of CPU Fin", Materials Science Forum, Vols. 575-578, pp. 174-179, 2008
Online since
April 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Zhi Gang Wu, Shu Hui Li, Wei Gang Zhang
Abstract:In recent years, hydropiercing technique has been used widely. In this work, its special type of hydropiercing-bend is simulated using Rice...
1315
Authors: Jong Deok Kim, Heung Kyu Kim, Young Moo Heo, Sung Ho Chang
Chapter 1: Key Engineering Materials
Abstract:In this paper, the relation between die roll height and die chamfer shape was studied by fine blanking experiments for imaginary special...
92
Authors: Jong Deok Kim, Heung Kyu Kim, Young Moo Heo, Sung Ho Chang
Chapter 6: Frontiers of Mechanical Engineering (2)
Abstract:In this paper, the effect of die chamfer shape on the die roll height was studied by fine blanking experiments for imaginary special...
3694
Authors: Jong Deok Kim, Heung Kyu Kim, Young Moo Heo, Sung Ho Chang
Chapter 28: Precision Molding Processes
Abstract:In this paper, the relation between die roll height and V-ring position was studied by fine blanking experiments for imaginary special...
7122
Authors: Chang Cheng Chen, Huey Lin Ho
Chapter 2: Technologies of Mechanical Processing
Abstract:This article aims at the discussion of deformation behavior considering size effect on curl forming process of sheet metal. In this study,...
55