The Effect of Metallurgical Variables on the Machinability of Compacted Graphite Iron 2001-01-0409
The influence of graphite shape, pearlite content and chemical composition have been investigated to determine their effect on the machinability of compacted graphite iron (CGI). In the comparison to gray iron, the reduced sulfur content of CGI prevents the beneficial formation of a protective manganese sulfide layer on the cutting insert. This accounts for much of the difference in tool life during high speed continuous cutting. Beyond this critical mechanism, the machinability of CGI can be optimized by providing a consistent, low nodularity microstructure with a minimum of tramp elements such as titanium and chromium that form abrasive inclusions.
Citation: Dawson, S., Hollinger, I., Robbins, M., Daeth, J. et al., "The Effect of Metallurgical Variables on the Machinability of Compacted Graphite Iron," SAE Technical Paper 2001-01-0409, 2001, https://doi.org/10.4271/2001-01-0409. Download Citation
Author(s):
S. Dawson, I. Hollinger, M. Robbins, J. Daeth, U. Reuter, H. Schulz
Affiliated:
SinterCast Technologies AB, Ford Motor Co. Ltd., PTW, University of Darmstadt
Pages: 21
Event:
SAE 2001 World Congress
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Automotive Casting Processes and Materials-SP-1603, SAE 2001 Transactions Journal of Materials & Manufacturing-V110-5
