Numerical simulation and prediction of surface heterogeneity in diamond turning of single-crystalline germanium

Jiwang Yan; Yufeng Fan; Nobuhito Yoshihara; Tsunemoto Kuriyagawa; Shoji Yokoyama

doi:10.4028/0-87849-416-2.397

Numerical simulation and prediction of surface heterogeneity in diamond turning of single-crystalline germanium

Jiwang Yan, Yufeng Fan, Nobuhito Yoshihara, Tsunemoto Kuriyagawa, Shoji Yokoyama

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

This paper deals with the mechanism of surface heterogeneity due to crystallographic anisotropy effects in diamond turning of single-crystalline germanium. A microplasticity-based numerical simulation model was proposed, in which the effects of tool geometry and machining conditions can be involved. Two coefficients were introduced to compensate the Schmid factors of two different types of symmetrical slip systems. Simulation of ductile machinability was conducted on two crystallographic planes (100) and (111), and the simulation results were consistent with the experimental results. It was indicated that the simulation model can be used to predict the brittle-ductile boundary change with machining conditions and crystal orientations of germanium.

Original language	English
Pages (from-to)	397-402
Number of pages	6
Journal	Key Engineering Materials
Volume	329
DOIs	https://doi.org/10.4028/0-87849-416-2.397
Publication status	Published - 2007 Jan 1
Externally published	Yes

Keywords

Cristallographie orientation
Diamond turning
Ductile machining
Numerical simulation
Precision machining
Single-crystalline germanium

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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abstract = "This paper deals with the mechanism of surface heterogeneity due to crystallographic anisotropy effects in diamond turning of single-crystalline germanium. A microplasticity-based numerical simulation model was proposed, in which the effects of tool geometry and machining conditions can be involved. Two coefficients were introduced to compensate the Schmid factors of two different types of symmetrical slip systems. Simulation of ductile machinability was conducted on two crystallographic planes (100) and (111), and the simulation results were consistent with the experimental results. It was indicated that the simulation model can be used to predict the brittle-ductile boundary change with machining conditions and crystal orientations of germanium.",

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AU - Yan, Jiwang

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AU - Yoshihara, Nobuhito

AU - Kuriyagawa, Tsunemoto

AU - Yokoyama, Shoji

PY - 2007/1/1

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AB - This paper deals with the mechanism of surface heterogeneity due to crystallographic anisotropy effects in diamond turning of single-crystalline germanium. A microplasticity-based numerical simulation model was proposed, in which the effects of tool geometry and machining conditions can be involved. Two coefficients were introduced to compensate the Schmid factors of two different types of symmetrical slip systems. Simulation of ductile machinability was conducted on two crystallographic planes (100) and (111), and the simulation results were consistent with the experimental results. It was indicated that the simulation model can be used to predict the brittle-ductile boundary change with machining conditions and crystal orientations of germanium.

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KW - Ductile machining

KW - Numerical simulation

KW - Precision machining

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