Surface feature formation mechanism during finish milling of gray cast iron

Surface feature formation mechanism during finish milling of gray cast iron Gray cast iron (GCI) is highly anisotropic at the microscale consisting of stochastically distributed and orientated graphite flakes within a ferric matrix. The anisotropy of the microstructure endows gray cast iron with favorable damping characteristics which makes it a common material for machine tool structural components. However, the microstructure inhibits the formation of a finished surface of sufficient quality for use as a slideway when milled with a defined cutting edge. The mechanisms of irregular surface formation during the machining of GCI were investigated using both a 3-D finite element cutting simulation and milling experiments. Investigation of simulation and machining tests indicates that the interaction of the primary shear zone in front of the cutting edge and graphite flakes is the cause of microcavity formation on the machined surface. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The International Journal of Advanced Manufacturing Technology Springer Journals

Surface feature formation mechanism during finish milling of gray cast iron

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Publisher
Springer London
Copyright
Copyright © 2017 by Springer-Verlag London
Subject
Engineering; Industrial and Production Engineering; Media Management; Mechanical Engineering; Computer-Aided Engineering (CAD, CAE) and Design
ISSN
0268-3768
eISSN
1433-3015
D.O.I.
10.1007/s00170-017-0162-z
Publisher site
See Article on Publisher Site

Abstract

Gray cast iron (GCI) is highly anisotropic at the microscale consisting of stochastically distributed and orientated graphite flakes within a ferric matrix. The anisotropy of the microstructure endows gray cast iron with favorable damping characteristics which makes it a common material for machine tool structural components. However, the microstructure inhibits the formation of a finished surface of sufficient quality for use as a slideway when milled with a defined cutting edge. The mechanisms of irregular surface formation during the machining of GCI were investigated using both a 3-D finite element cutting simulation and milling experiments. Investigation of simulation and machining tests indicates that the interaction of the primary shear zone in front of the cutting edge and graphite flakes is the cause of microcavity formation on the machined surface.

Journal

The International Journal of Advanced Manufacturing TechnologySpringer Journals

Published: Feb 27, 2017

References

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