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Preliminary investigations on machining of advanced fibrous composites
G. Santhanakrishnan, Ramalingam Krishnamurthy
Published in SAMPE, Covina, CA, United States
Volume: 38
Issue: 2
Pages: 1700 - 1709
Demands for near-net shape, call for machining of FRP composites. At present the knowledge on machining of advanced FRP composites is very limited. Machining of FRP composites is rather unique in nature, since one cannot analogize machining of composites with that of homogenous metallic materials. Freeze cutting trials indicated that the mechanism of material removal is associated with cutting and loosening of the fibre bundles and cracking of matrix material ahead of the tool wedge. Among different types of composites materials, it was possible to obtain better surface finish and clear texture in the case CFRP, without the presence of fussy lumps of uncut fibres. Specific cutting pressure was least for CFRP, while the high strength, tenacious KFRP as exhibited greater resistance to cutting and consequently higher order specific cutting pressure. Among the tools tried, only K20 plain cemented carbide tools performed better as a whole for machining of composites.
About the journal
JournalInternational SAMPE Symposium and Exhibition (Proceedings)
PublisherSAMPE, Covina, CA, United States
Open AccessNo
Concepts (9)
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    Carbide cutting tools
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    Crack initiation
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    Nonmetallic matrix composites
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    Strength of materials
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    Carbon fiber reinforced plastics