Volume 14, Issue 5, 2005
Studies on Turning of carbon/phenolic
ablative
composite using pcbn tools
P. S. Sreejith1 and R. Krishnamurthy2
1Professor and Head, Department of Mechanical Engineering,
Cochin University of Science and Technology, Kochi - 682 022, India
E-mail: pssreejith@cusat.ac.in
2Professor, Manufacturing Engineering Section, Dept. of Mechanical
Engineering, Indian Institute of Technology Madras, Chennai – 600036, India.
(Received 1/06; accepted 2/06)
Abstract
Carbon/phenolic composites are used in high performance applications because of
their high temperature resistant properties. Studies on the machining aspects of
these composites are very few. This paper presents an investigation on machining
of this composite material using PCBN tools. The studies on specific cutting
pressure revealed a critical speed of machining at which the specific cutting
pressure is minimum. A critical range of temperature has been identified at
which the specific cutting pressure is almost steady. Range of effective
hardness for the tool has been identified for machining.