Finite Element Model of Machining with High Pressure Coolant for Ti-6Al-4V alloy
This study present a series of finite element models for high-pressure jet-assisted machining of Ti-6Al-4V alloy. The application of Fluid-Structure Interaction (FSI) together with the Johnson-Cook plasticity model, Cockcroft-Latham chip separation criteria and EOS polynomial were implemented to...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
UniMaP
2012
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| Subjects: | |
| Online Access: | http://eprints.utem.edu.my/id/eprint/7506/1/MUCET_2012_Hadzley.pdf http://eprints.utem.edu.my/id/eprint/7506/ |
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| Institution: | Universiti Teknikal Malaysia Melaka |
| Language: | English |
| Summary: | This study present a series of finite element models
for high-pressure jet-assisted machining of Ti-6Al-4V alloy. The
application of Fluid-Structure Interaction (FSI) together with the
Johnson-Cook plasticity model, Cockcroft-Latham chip
separation criteria and EOS polynomial were implemented to
study the effect of coolant pressure on chip formation, cutting
force and cutting temperature. The resulting motion of fluid at
the tool-chip interface, chip breakage, cutting force as well as
temperature generation at the tool-chip interface is then
interpreted, analyzed and compared to their real experimental
results. The models simulate interactions between the fluid and
solid structure, where continuous chip formation was observed
when simulation in conventional coolant supply while chip
breakage was clearly evident as high-pressure coolant was
introduced. Increasing coolant pressure significantly reduce the
friction at the tool-chip interface, which significantly reduced the
cutting force and cutting temperature. |
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