Ductile Streaks in Precision Grinding of Hard and Brittle Materials

Ductile streaks produced during diamond grinding of hard and brittle materials have aided the subsequent process of polishing. Two novel techniques were used to study the formation of ductile mode streaks during diamond grinding (primary process) of germanium, silicon, and glass. In the first tec...

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Main Authors: Venkatesh, V. C., Izman, S., Sharif, S., Mon, T. T., Konneh, K.
Format: Article
Published: Indian Academy of Sciences 2003
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Online Access:http://eprints.utm.my/6753/
http://www.ias.ac.in/sadhana/
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author Venkatesh, V. C.
Izman, S.
Sharif, S.
Mon, T. T.
Konneh, K.
author_facet Venkatesh, V. C.
Izman, S.
Sharif, S.
Mon, T. T.
Konneh, K.
author_sort Venkatesh, V. C.
building UTM Library
collection Institutional Repository
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
continent Asia
country Malaysia
description Ductile streaks produced during diamond grinding of hard and brittle materials have aided the subsequent process of polishing. Two novel techniques were used to study the formation of ductile mode streaks during diamond grinding (primary process) of germanium, silicon, and glass. In the first technique, aspheric surfaces were generated on Ge and Si at conventional speeds (5000 rpm). In the second technique, diamond grinding of plano surfaces on glass and Si surfaces using high speed (100,000 rpm) was carried out. Form accuracy, surface finish and ductile mode grinding streaks are discussed in this paper. It was found that resinoid diamond wheels gave more ductile streaks than metal-bonded wheels but better form accuracy was obtained with the latter. Ductile streaks were obtained more easily with pyrex rather than with BK 7 glass thus necessitating very little time for polishing. Ductile streaks appeared in abundance on germanium rather than silicon. Both the novel grinding techniques were used on CNC machining centres.
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spelling my.utm.eprints-67532008-11-06T08:48:04Z http://eprints.utm.my/6753/ Ductile Streaks in Precision Grinding of Hard and Brittle Materials Venkatesh, V. C. Izman, S. Sharif, S. Mon, T. T. Konneh, K. TJ Mechanical engineering and machinery Ductile streaks produced during diamond grinding of hard and brittle materials have aided the subsequent process of polishing. Two novel techniques were used to study the formation of ductile mode streaks during diamond grinding (primary process) of germanium, silicon, and glass. In the first technique, aspheric surfaces were generated on Ge and Si at conventional speeds (5000 rpm). In the second technique, diamond grinding of plano surfaces on glass and Si surfaces using high speed (100,000 rpm) was carried out. Form accuracy, surface finish and ductile mode grinding streaks are discussed in this paper. It was found that resinoid diamond wheels gave more ductile streaks than metal-bonded wheels but better form accuracy was obtained with the latter. Ductile streaks were obtained more easily with pyrex rather than with BK 7 glass thus necessitating very little time for polishing. Ductile streaks appeared in abundance on germanium rather than silicon. Both the novel grinding techniques were used on CNC machining centres. Indian Academy of Sciences 2003-10-05 Article PeerReviewed Venkatesh, V. C. and Izman, S. and Sharif, S. and Mon, T. T. and Konneh, K. (2003) Ductile Streaks in Precision Grinding of Hard and Brittle Materials. Academy Proceedings in Engineering Sciences, 28 (5). pp. 915-924. ISSN none http://www.ias.ac.in/sadhana/
spellingShingle TJ Mechanical engineering and machinery
Venkatesh, V. C.
Izman, S.
Sharif, S.
Mon, T. T.
Konneh, K.
Ductile Streaks in Precision Grinding of Hard and Brittle Materials
title Ductile Streaks in Precision Grinding of Hard and Brittle Materials
title_full Ductile Streaks in Precision Grinding of Hard and Brittle Materials
title_fullStr Ductile Streaks in Precision Grinding of Hard and Brittle Materials
title_full_unstemmed Ductile Streaks in Precision Grinding of Hard and Brittle Materials
title_short Ductile Streaks in Precision Grinding of Hard and Brittle Materials
title_sort ductile streaks in precision grinding of hard and brittle materials
topic TJ Mechanical engineering and machinery
url http://eprints.utm.my/6753/
http://www.ias.ac.in/sadhana/
url_provider http://eprints.utm.my/