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TECHNICAL PAPERS

A Predictive Model for Variation in the Pitch Between Stamped Pilot Holes

[+] Author and Article Information
R. Ryan Vallance

Mechanical Engineering, University of Kentucky, Lexington, KY 40506-0108e-mail: vallance@engr.uky.edu

Sepehr Kiani

Development Engineering, Teradyne Connection Systems, Nashua, NH 03060e-mail: skiani@alum.mit.edu

J. Manuf. Sci. Eng 125(2), 384-393 (Apr 15, 2003) (10 pages) doi:10.1115/1.1559158 History: Received February 01, 2002; Revised October 01, 2002; Online April 15, 2003
Copyright © 2003 by ASME
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References

Geiger,  M., Kleiner,  M., Eckstein,  R., Tiesler,  N., and Engel,  U., 2001, “Microforming,” CIRP Ann., 50(2), pp. 445–462.
Kiani, S., Vallance, R. R., and Slocum, A. H., 1999, “Errors in Progressive Dies for Electronic Components,” Proceedings of the American Society for Precision Engineering 1999 Annual Meeting, American Society for Precision Engineering, Monterey, CA. pp. 49–52.
Jimma, T., and Sekine, F., 1987, “Precision Blanking of Electronic Machine Parts,” Advanced Technology of Plasticity 1987, Lange, K., eds., Berlin Springer, pp. 291–297.
Jimma,  T., and Sekine,  F., 1990, “On High Speed Precision Blanking of IC Lead-frames Using a Progressive Die,” J. Mater. Process. Technol., 22(3), pp. 291–305.
Breitling, J., Pfeiffer, B., Altan, T., and Siegert, K., 1997, “Process Control in Blanking,” Journal of Materials Processing Technology, Proceedings of the 1996 2nd International Conference on Sheet Forming Technology, 71 , No. (1), pp. 187–192.
Keeler, S. P., 1978 “Sheet Metal Stamping Technology—Need for Fundamental Understanding,” Mechanics of Sheet Metal Forming, D. P. Koistinen and N.-M. Wang, eds., Plenum Press, New York, pp. 3–18.
Slocum, A. H., 1992, Precision Machine Design, Society of Manufacturing Engineers, Dearborn, Michigan.
Schellekens,  P., Rosielle,  N., Vermeulen,  H., Vermeulen,  M., Wetzels,  S., and Pril,  W., 1998, “Design for Precision: Current Status and Trends,” CIRP Ann., 47(2), pp. 557–586.
Soons,  J. A., Theuws,  F. C., and Schellekens,  P. H., 1992, “Modeling the Errors of Multi-Axis Machines: A General Methodology,” Precis. Eng., 14(1), pp. 5–19.
Donmez,  M. A., Blomquist,  D. S., Hocken,  R. J., Liu,  C. R., and Barash,  M. M., 1986, “A General Methodology for Machine Tool Accuracy Enhancement by Error Compensation,” Precis. Eng., 8(4), October, pp. 187–196.
Donaldson, R. R., 1980, “Error Budgets,” Technology of Machine Tools, Vol. 5, Machine Tool Task Force, Hocken, R. J., chairman.
Shirai,  K., and Murakami,  H., 1985, “Development of a CAD/CAM System for Progressive Dies,” CIRP Ann., 34(1), pp. 187–190.
Huang,  K., Ismail,  H. S., and Hon,  K. K. B., 1996, “Automated Design of Progressive Dies,” Proc. Inst. Mech. Eng., Part C: J. Mech. Eng. Sci., 20(4), pp. 376–386.
Cheok,  B. T., Foong,  K. Y., and Nee,  A. Y. C., 1996, “Intelligent Planning Aid for the Design of Progressive Dies,” Proc. Inst. Mech. Eng., Part C: J. Mech. Eng. Sci., 210, No (1), p. 25–35.
Cheok, B. T., and Nee, A. Y. C., 1998, “Configuration of Progressive Dies,” Artificial Intelligence for Engineering Design, Analysis, and Manufacturing: AIEDAM, Vol. 12, No. 5, p. 405–418.
Ismail,  H. S., Hon,  K. K. B., and Huang,  K., 1995, “Intelligent Object-Oriented Approach to the Design and Assembly of Press Tools,” CIRP Ann., 44(1), pp. 91–96.
Thomas,  W., Oenoki,  T., and Altan,  T., 2000, “Process Simulation in Stamping—Recent Applications for Product and Process Design,” J. Mater. Process. Technol., 98(2), pp. 232–243.
Spisak,  E., and Stachowicz,  F., 1995, “Deformation Analysis of Large-Sized Autobody Panels,” J. Mater. Process. Technol., 53(3–4), pp. 817–826.
Chan,  K. C., and Wang,  S. H., 1999, “Theoretical Analysis of Springback in Bending of Integrated Circuit Leadframes,” J. Mater. Process. Technol., 91(1–3), pp. 111–115.
Goijaerts,  A. M., Stegeman,  Y. W., Govaert,  L. E., Brokken,  D., Brekelmans,  W. A. M., and Baaijens,  F. P. T., 2000, “Can a New Experimental and Numerical Study Improve Metal Blanking?” J. Mater. Process. Technol., 103(1), pp. 44–50.
Brokken,  D., Brekelmans,  W. A. M., and Baaijens,  F. P. T., 2000, “Predicting the Shape of Blanked Products: a Finite Element Approach,” J. Mater. Process. Technol., 103(1), pp. 51–56.
Klocke,  F., Sweeney,  K., and Raedt,  H.-W., 2001, “Improved Tool Design for Fine Blanking through the Application of Numerical Modeling Technique,” J. Mater. Process. Technol., 115(1), pp. 70–75.
Scheaffer, R., 1995, Introduction to Probability and Its Applications, Duxbury Press, New York.

Figures

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Stamped electrical contacts and pitch distance between pilot holes in a carrier strip
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Dieset and press for stamping electrical contacts
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Locating a stamped strip with through-hole pilot pins
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Sequential steps as dieset locates strip and blanks a new pilot hole
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Pin confined within clearance hole
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Uniform joint probability density function for location of pin’s center
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Probability density functions (PDFs) for coordinates (in x direction) of stripper, punch and pilot pins for exemplary dieset
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Errors during piloting operation
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Errors during blanking of pilot holes
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Correlation between locations in (x-direction) of successive pilot holes for sample strip
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Variables in algorithm for estimating pitch variation
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Algorithm for estimating pitch variance  
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Subroutine to calculate variances in hole location and carrier strip location    
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Predicted standard deviation of pitch for 12 pilot pins in exemplary dieset
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Predicted standard deviation of pitch for 16 pilot pins in exemplary dieset
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Predicted standard deviation of pitch for 20 pilot pins in exemplary dieset

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