Profiled Edge Laminate (PEL) tooling is a rapid tooling method that uses a stacked array of vertically orientated thick laminae with profiled and beveled top edges to provide the desired surface shape for part forming or molding. Since this method is being developed for commercial use, there is a need to be able to predict the response of PEL tools to both structural and thermal loads encountered during a manufacturing process. In this paper, a general approach for structural modeling of PEL tools is developed using the Finite Element Method (FEM). To validate this method, an experimental case study is performed. Specifically, a PEL test tool is subjected to two-dimensional structural loading to simulate a sheet metal hydroforming process, while tool displacements and strains are recorded. The experimental results are compared to those obtained using the FEM modeling approach, conclusions are drawn about its effectiveness, and more advanced modeling work is proposed.

Issue Section:
Technical Papers
Keywords:
laminates, moulding, finite element analysis, modelling
Topics:
Finite element methods, Finite element model, Laminates, Modeling, Stress
1.
Walczyk, D. F., and Hardt, D. E., 1994, “A New Rapid Tooling Method for Sheet Metal Forming Dies,” Proceedings of the 5th International Conference on Rapid Prototyping, Dayton, OH, pp. 275–289, June 12–15.
2.
Walczyk
,
D. F.
, and
Hardt
,
D. E.
,
1998
, “
Rapid Tooling for Sheet Metal Forming Using Profiled Edge Laminations—Design Principles and Demonstration
,”
ASME J. Manuf. Sci. Eng.
,
120
, pp.
746
–
754
, November.
3.
Walczyk, D. F., and Hardt, D. E., 1996, “Recent Developments in Profiled-Edge Lamination Dies for Sheet Metal Forming,” Proceedings of Solid Freeform Fabrication Conference, The University of Texas at Austin, pp. 215–226, August.
4.
Im
,
Y. T.
, and
Walczyk
,
D. F.
,
2002
, “
Development of a Computer-Aided Manufacturing System for Profiled Edge Lamination Tooling
,”
ASME J. Manuf. Sci. Eng.
,
124
(
3
), August, pp.
754
–
761
.
5.
Im, Y-T., 2001, “The Development of a Rapid Tooling System for Profiled Edge Lamination Dies and Molds,” Ph.D. Thesis, Dept. of Mechanical, Aeronautical and Nuclear Engineering, Rensselaer Polytechnic Institute of Technology, April.
6.
Hart, F. V., 1942, “Mold and Mold Making Method,” U.S. Patent No. 2274060, Issued Feb. 24.
7.
Nakagawa, T., Kunieda, M., and Liu, S. D., 1985, “Laser Cut Sheet Laminated Forming Dies by Diffusion Bonding,” Proceedings of the 25th International Machine Tool Design and Research Conference, Dept. of Mechanical Engineering, University of Birmingham, England, April 24–25, pp. 505–510.
8.
Glozer
,
G. R.
, and
Brevick
,
J. R.
,
1993
, “
Laminated tooling for injection molding
,”
Proc. Inst. Mech. Eng.
,
207
(
1
), pp.
9
–
14
.
9.
Soar
,
R.
, and
Dickens
,
P. M.
, 1996, “Design of Laminated Tooling for High Pressure Die Casting,” Proceedings of the SPIE (International Society for Optical Engineering) Conference, Boston, MA, Issue 2910, Nov. 1996, pp. 198–209.
10.
Himmer
,
T.
,
Nakagawa
,
T.
, and
Anzai
,
M.
,
1999
, “
Lamination of Metal Sheets
,”
Computers in Industry
,
39
, pp.
27
–
39
.
11.
Dormal
,
T.
, and
Baraldi
,
U.
,
1999
, “
New Technology for Manufacturing Large Prototype Injection Molds: Laminated Laser Cut Cavities
,”
SME Rapid Prototyping Newsletter
,
5
(
4
), pp.
1
–
4
.
12.
Brown, K., 2002, “Implementation of the Profiled Edge Lamination Tooling Process Through Case Studies,” M.S. Thesis, Dept. of Mechanical Engineering, Rensselaer Polytechnic Institute.
13.
Dickens
,
P. M.
,
1997
, “
Principles of Design for Laminated Tooling
,”
Int. J. Prod. Res.
,
35
(
5
), May, pp.
1349
–
1357
.
14.
Bickford, W. B., 1993, Mechanics of Solids: Concepts and Applications, R. D. Irwin, Inc., Burr Ridge, IL.
15.
Shook, J. T., 2000, “The Development of a General Finite Element Modeling Method for Profiled Edge Laminated Tools,” Master’s Thesis, Dept. of Mechanical, Aeronautical, and Nuclear Engineering, Rensselaer Polytechnic Institute of Technology, Troy, NY, May.
16.
Pepelnjak, T., Kampus, Z., and Kuzman, K., 1996, “Layered Tool Structure for Improved Flexibility of Metal Forming Processes,” Advanced Manufacturing Systems and Technology, CISM Courses and Lectures No. 372, Springer Verlag, New York, pp. 339–346.
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