Analýza měrných řezných sil při obrábění kompozitních materiálů

The analysis of specific cutting forces at machining of composite materials

conference paper

en

This paper deals with the analysis of specific cutting forces acting on the carbide milling cutters deposited by AlTiN, nACo and diamante coating. Glass-polyester and carbide-epoxy composite materials were chosen as the workpiece material. Glass and carbon fibers are now most common types of reinforcement in composite materials. Each tested milling cutter performed twenty-one passes through workpiece material to reduce the influence of irregular structure of tested composite materials, especially glass-polyester composite. The milling process was carried out without using process liquid, so it was dry machining. The development of specific cutting forces with the changing of cutting condition and increasing wear of the tested milling tools were monitored simultaneously. Dynamometer Kistler was used for measuring of force loading, obtained data was reconverted to specific cutting forces for comparison of milling cutters with different geometry of cutting edges. The evaluation of milling tools structure surfaces were performed on an electron microscope.

Článek se zabývá analýzou měrných řezných sil působících na nástroje ze slinutých karbidů, na kterých jsou naneseny povlaky AlTiN ,nACo a DLC při obrábění kompozitních materiálů. Jako zástupci kompozitů byly zvoleny uhlík-epoxidový a sklo-polyesterový kompozitní materiál. Po provedeném testování byly nástroje následně analyzovány na elektronovém mikroskopu.

This paper deals with the analysis of specific cutting forces acting on the carbide milling cutters deposited by AlTiN, nACo and diamante coating. Glass-polyester and carbide-epoxy composite materials were chosen as the workpiece material. Glass and carbon fibers are now most common types of reinforcement in composite materials. Each tested milling cutter performed twenty-one passes through workpiece material to reduce the influence of irregular structure of tested composite materials, especially glass-polyester composite. The milling process was carried out without using process liquid, so it was dry machining. The development of specific cutting forces with the changing of cutting condition and increasing wear of the tested milling tools were monitored simultaneously. Dynamometer Kistler was used for measuring of force loading, obtained data was reconverted to specific cutting forces for comparison of milling cutters with different geometry of cutting edges. The evaluation of milling tools structure surfaces were performed on an electron microscope.

měrná řezná síla, hřbetní opotřebení, kompozitní materiál, řezný nástroj

specific cutting force, flank wear, composite material, milling cutter

2014

23.04.2014

Brno University of Technology

Litera Brno

978-80-214-4931-2

ERIN 214, 8th International Conference for Young Researchers and Ph.D. Students; Proceedings of Abstracts

1–8

8