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TECHNICAL PAPERS

The Design of a New Metal Forming Press with Controllable Mechanism

[+] Author and Article Information
R. Du, W. Z. Guo

Dept. of Automation and Computer Aided Engineering, The Chinese University of Hong Kong, Shatin, N. T., Hong Kong, China

J. Mech. Des 125(3), 582-592 (Sep 04, 2003) (11 pages) doi:10.1115/1.1587748 History: Received May 01, 2002; Revised February 01, 2003; Online September 04, 2003
Copyright © 2003 by ASME
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References

Wagener,  H.-W., 1997, “New Developments in Sheet Metal Forming: Sheet Materials, Tools and Machinery,” J. Mater. Process. Technol., 72, pp. 342–357.
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Figures

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.1The correlation between the dead centers and the boundaries of Joint B
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Illustration of the desirable punch travel trajectory in time: (a) smooth pressing, (b) long dwelling time, and (c) slow releasing.
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Schematic illustration of several current metal forming presses: (a) a six bar mechanism, (b) an eight bar mechanism, and (c) another eight bar mechanism.
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Illustration of a hybrid machine 67
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Illustration of the proposed new design
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Illustration of the reachable area of Joint B (in shaded area)
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Illustration of the reachable range of the ram (Point D)
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Simulation example 1: single dwelling during stamping
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Simulation example 2: double dwellings during stamping
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Simulation example 3: ternary dwellings during stamping
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Illustration of performance of hybrid machine for Case 1
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Illustration of performance of hybrid machine for Case 2
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Illustration of performance of hybrid machine for Case 3
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Illustration of the optimization parameters Φ and SA
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The travel of the optimized designs
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The driving moment required from the CSM and the VSM of the optimized design

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