Engineering Transactions,
60, 3, pp. 205–213, 2012
Characterization of Dynamic Friction Factor for FEM Modeling of High Speed Process
The present study aims to establish through a series of friction tests the trends of the
dynamic factor according to sliding speed. A ballistic set-up using an air gun launch is used
to measure the friction coefficient for the steel/carbide contact between 15 m/s and 80 m/s.
Since the experimental characterization of friction is a key factor in the development of high
speed process such as high speed machining, the experimental quantification is introduced into
a cutting model by finite elements method. Modeling results are compared with cutting forces
measured on a similar experimental device, which can reproduce perfect orthogonal cutting
conditions.
dynamic factor according to sliding speed. A ballistic set-up using an air gun launch is used
to measure the friction coefficient for the steel/carbide contact between 15 m/s and 80 m/s.
Since the experimental characterization of friction is a key factor in the development of high
speed process such as high speed machining, the experimental quantification is introduced into
a cutting model by finite elements method. Modeling results are compared with cutting forces
measured on a similar experimental device, which can reproduce perfect orthogonal cutting
conditions.
Keywords:
dynamic friction, ballistic set-up, high speed process, finite element method
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