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Wear of CBN tools in ultra-precision machining of STAVAX

CBN cutting tools are widely used in ultra-precision machining of STAVAX (specialized stainless steel) mould inserts for injection moulding of optical lenses. This paper will report on experiments carried out to investigate the wear of CBN tools with different grain sizes and various CBN/TiN ratios...

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Main Authors: X. Ding, Liew, Willey Yun Hsien, B.K.A. Ngoi, J.G.K. Gan, S.H. Yeo
Format: Article
Language:English
Published: 2002
Subjects:
TJ Mechanical engineering and machinery
Online Access:https://eprints.ums.edu.my/id/eprint/20344/1/Wear%20of%20CBN%20tools%20in%20ultra.pdf
https://eprints.ums.edu.my/id/eprint/20344/
https://link.springer.com/article/10.1023/A:1013987708701
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spelling my.ums.eprints.203442018-06-25T02:16:24Z https://eprints.ums.edu.my/id/eprint/20344/ Wear of CBN tools in ultra-precision machining of STAVAX X. Ding Liew, Willey Yun Hsien B.K.A. Ngoi J.G.K. Gan S.H. Yeo TJ Mechanical engineering and machinery CBN cutting tools are widely used in ultra-precision machining of STAVAX (specialized stainless steel) mould inserts for injection moulding of optical lenses. This paper will report on experiments carried out to investigate the wear of CBN tools with different grain sizes and various CBN/TiN ratios in ultra-precision machining of STAVAX. The tool-wear characteristics were observed to be greatly dependent on the tool type, hardness of the STAVAX and cutting parameters used. In the machining of STAVAX with a hardness of 55 HRC, fine-scale cavities were formed on the rake face and as such the surface damage acted like a chip breaker resulting in formation of cracks. While the flank faces of all tool types showed a similar wear resistance, it was observed that a combination of a higher percentage of TiN binder and smaller grain size led to greater wear resistance on the rake face. It was found that the formation of cracks on the rake faces could be prevented by means of either increasing the cutting speed or reducing the hardness of the machined workpiece 2002 Article PeerReviewed text en https://eprints.ums.edu.my/id/eprint/20344/1/Wear%20of%20CBN%20tools%20in%20ultra.pdf X. Ding and Liew, Willey Yun Hsien and B.K.A. Ngoi and J.G.K. Gan and S.H. Yeo (2002) Wear of CBN tools in ultra-precision machining of STAVAX. Tribology Letters, Springer, 12 (1). pp. 3-12. https://link.springer.com/article/10.1023/A:1013987708701
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
X. Ding
Liew, Willey Yun Hsien
B.K.A. Ngoi
J.G.K. Gan
S.H. Yeo
Wear of CBN tools in ultra-precision machining of STAVAX
description CBN cutting tools are widely used in ultra-precision machining of STAVAX (specialized stainless steel) mould inserts for injection moulding of optical lenses. This paper will report on experiments carried out to investigate the wear of CBN tools with different grain sizes and various CBN/TiN ratios in ultra-precision machining of STAVAX. The tool-wear characteristics were observed to be greatly dependent on the tool type, hardness of the STAVAX and cutting parameters used. In the machining of STAVAX with a hardness of 55 HRC, fine-scale cavities were formed on the rake face and as such the surface damage acted like a chip breaker resulting in formation of cracks. While the flank faces of all tool types showed a similar wear resistance, it was observed that a combination of a higher percentage of TiN binder and smaller grain size led to greater wear resistance on the rake face. It was found that the formation of cracks on the rake faces could be prevented by means of either increasing the cutting speed or reducing the hardness of the machined workpiece
format Article
author X. Ding
Liew, Willey Yun Hsien
B.K.A. Ngoi
J.G.K. Gan
S.H. Yeo
author_facet X. Ding
Liew, Willey Yun Hsien
B.K.A. Ngoi
J.G.K. Gan
S.H. Yeo
author_sort X. Ding
title Wear of CBN tools in ultra-precision machining of STAVAX
title_short Wear of CBN tools in ultra-precision machining of STAVAX
title_full Wear of CBN tools in ultra-precision machining of STAVAX
title_fullStr Wear of CBN tools in ultra-precision machining of STAVAX
title_full_unstemmed Wear of CBN tools in ultra-precision machining of STAVAX
title_sort wear of cbn tools in ultra-precision machining of stavax
publishDate 2002
url https://eprints.ums.edu.my/id/eprint/20344/1/Wear%20of%20CBN%20tools%20in%20ultra.pdf
https://eprints.ums.edu.my/id/eprint/20344/
https://link.springer.com/article/10.1023/A:1013987708701
_version_ 1760229702400737280
score 13.211869

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