Modeling and Experimental Study of Complex Critical Condition for Ductile-regime Micro-grinding of Hard Brittle Material

Abstract

Abstract: Surface formation mechanism of hard brittle material in micro-grinding is analyzed. The mathematical model of undeformed chip thickness hm in slot micro-grinding is built. A model to describe complex critical condition of ductile-regime in micro-grinding of hard brittle material is proposed considering size effect factor Md and micro-grinding tool topography. Micro-grinding ductile-regime experiments on soda-lime glass and monocrystal silicon are designed and carried out. Influences of micro-grinding parameters to crack length are investigated based on analysis of experiment results. The model this paper proposes is also confirmed，ductile factorζ0 and ductile-brittle factorζ1 to soda-lime glass and monocrystal silicon are derived. Some finding would provide research theory and experimental reference to micro-grinding.

Key words: Complex critical condition, Ductile-regime, Hard brittle material, Micro-grinding

CLC Number:

TG161

CHENG Jun;GONG Yadong;YAN Xuqiang;ZHENG Weisheng. Modeling and Experimental Study of Complex Critical Condition for Ductile-regime Micro-grinding of Hard Brittle Material[J]. , 2013, 49(23): 191-198.

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Modeling and Experimental Study of Complex Critical Condition for Ductile-regime Micro-grinding of Hard Brittle Material

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