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Choi, J., and Min, S., “Modeling of Inter-Layer Gap Formation in Drilling of a Multi-Layered Material", 2002-2003 LMA Reports , University of California at Berkeley, pp. 36-41.

Download the Paper (326 K, PDF file) - June 1, 2003 Tell a colleague about it. Printing Tips: Select 'print as image' in the Acrobat print dialog if you have trouble printing.

ABSTRACT:
With increases in the use of multi-layered materials in the aerospace industry to reduce weight while still meeting strength requirements, the study of inter-layer burr formation in drilling of a multi-layered material becomes more important. Inter-layer gap formation due to material bending by drilling thrust force has significant effect on inter-layer burr formation. A finite element model for inter-layer gap formation in a multi-layered material was proposed. A gap formation was initiated by initial difference in elastic bending of layers and developed by plastic deformation of the first layer.

SUGGESTED CITATION:
Jihong Choi, Sangkee Min, and David A. Dornfeld, "Modeling of Inter-Layer Gap Formation in Drilling of a Multi-Layered Material" (June 1, 2003). Laboratory for Manufacturing and Sustainability. Consortium on Deburring and Edge Finishing. Paper 2002_Choi_Min.
http://repositories.cdlib.org/lma/codef/2002_Choi_Min