Modelling of fracture wear in vitrified cBN grinding wheels

• Autorzy: Jackson M. J.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The paper describes modelling of fracture wear in vitrified cBN grinding wheels. Design/methodology/approach: The approach used in the paper is based on using finite elements to model fracture wear processes in vitrified cBN grinding wheels. The approach used models fracture wear processes and ignores abrasive wear of the abrasive grains. Findings: The findings show that during grinding the grain is subjected to forces that create fracture initiation zones in the sharp abrasive grains where tensile and compressive stresses dominate in certain parts of the abrasive grains. Research limitations/implications: The findings show that further research is required that prevents the formation of crack initiation zones and considers the effects of wear flats on the magnitude of stresses in the abrasive grains. Practical implications: The results imply that abrasive fracture wear is the dominant wear mechanism when grinding with sharp vitrified cBN grinding wheels. Originality /value: The originality of this paper is reflected in the fact that this is the first time that fracture wear has been modelled in sharp vitrified cBN grinding wheels. The results presented in this paper will illuminate the need for accurate modelling of the wear of vitrified superabrasive grinding wheels.

Słowa kluczowe

EN

artificial intelligence methods; grinding; tribology; vitrified grinding wheels; cubic boron nitride

PL

metody sztucznej inteligencji; szlifowanie; tribologia; ściernica ze spoiwem ceramicznym; regularny azotek boru CBN

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2007
• Tom: Vol. 24, nr 1
• Strony: 230--236
• Opis fizyczny: Bibliogr. 20 poz., fot., rys., tab.

Twórcy

autor

Jackson M. J.

• Center for Advanced Manufacturing, Purdue University, West Lafayette, Indiana 47907, USA,

Bibliografia

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