Assessment of friction incorporating tool wear effect

• Autorzy: Grzesik W. , Żak K.
• Języki publikacji: EN

Abstrakty

EN

This paper compares friction for orthogonal and non-orthogonal models developed for chamfered ceramic tools with a large negative rake angle. The new non-orthogonal friction model was tested for the machining of spheroidal cast iron (SCI) using coated nitride ceramic inserts. Friction coefficients were determined on the rake and flank face for fresh and worn ceramic inserts using the values of force components recorded during tool wear tests at different cutting speeds. In particular, the friction and normal forces acting on the rake and flank faces were computed. It was revealed that friction coefficients at the tool-chip and tool-workpiece interfaces change substantially with the tool wear progress and differ from that determined for orthogonal friction model.

Słowa kluczowe

EN

friction; wear; cutting; silicon nitride ceramic tools; spheroidal cast iron

• Wydawca: Wydawnictwo Wrocławskiej Rady FSNT NOT
• Czasopismo: Journal of Machine Engineering
• Rocznik: 2014
• Tom: Vol. 14, No. 2
• Strony: 5--15
• Opis fizyczny: Bibliogr. 16 poz., rys.

Twórcy

autor

Grzesik W.

• Opole University of Technology, Faculty of Mechanical Engineering, Poland

autor

Żak K.

• Opole University of Technology, Faculty of Mechanical Engineering, Poland

Bibliografia

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