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Single Point Incremental Forming Limits Using a Boxbehnken Design of Experiment

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Abstract:

Single Point Incremental Forming (SPIF) is a new method of forming sheet metal for which not all forming limits and forming parameters are yet completely understood. In this paper, a Box-Behnken design of experiment (DOE) is used to execute an experimental study used to determine the forming limits in Single Point Incremental Forming (SPIF). The Box-Behnken allows for good accuracy in defining a surface response for a relatively low number of experimental runs – hence its usefulness in experimental work. The Box-Behnken used in this paper solved five factors at three levels in forty six runs. The five factors analyzed are based on the most critical factors effecting SPIF; they are material type, material thickness, formed shape, tool size and incremental step size (depth of each step in form). The data resulting from the Box-Behnken progressed into graphical response surfaces; the response surfaces allow designers to determine what factors they need to select in order to successfully form a part using SPIF.

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Periodical:

Key Engineering Materials (Volume 344)

Pages:

629-636

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.344.629

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Online since:

July 2007

Authors:

M. Ham, J. Jeswiet

Keywords:

Box Behnken, Design of Experiment (DOE), Forming Limit, Incremental Forming, Sheet Metal, Single Point Incremental Forming (SPIF)

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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References

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