Cutting performance and wear characteristics of PVD coated and uncoated carbide tools in face milling Inconel 718 aerospace alloy

In this paper, cutting performance and failure characteristics of two PVD TiN coated and an uncoated tungsten carbide grades with identical geometry are presented. Face-milling tests of Inconel 718 superalloy were performed to investigate the effect of cutting speed and feed rate on tools performanc...

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Main Authors: Jawaid, A., Koksal, S., Sharif, Safian
Format: Article
Language:English
Published: Elsevier 2001
Subjects:
Online Access:http://eprints.utm.my/5688/1/ssharif2001_cuttingPerformanceand_WearCharacteristics.pdf
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author Jawaid, A.
Koksal, S.
Sharif, Safian
author_facet Jawaid, A.
Koksal, S.
Sharif, Safian
author_sort Jawaid, A.
collection ePrints
description In this paper, cutting performance and failure characteristics of two PVD TiN coated and an uncoated tungsten carbide grades with identical geometry are presented. Face-milling tests of Inconel 718 superalloy were performed to investigate the effect of cutting speed and feed rate on tools performance under wet conditions. Tools were thoroughly examined under SEM at two stages in order to reveal the failure modes and wear mechanisms. These stages were after cutting for 5 s and when the tool failed. It was noted that the coating resulted in a marginal improvement, as it was delaminated by adhering workpiece material at the beginning of the cut, impeding the performance of the tool for the rest of the experiment. A combination of progressive chipping and flank wear was the general mode of tool failure, former being dominant at high speeds and the latter at the low speed region. Results showed that uncoated tool performed better than coated tools at low cutting speeds while coated tools gave slightly better performance as the speed was raised.
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spelling utm.eprints-56882017-09-12T07:32:12Z http://eprints.utm.my/5688/ Cutting performance and wear characteristics of PVD coated and uncoated carbide tools in face milling Inconel 718 aerospace alloy Jawaid, A. Koksal, S. Sharif, Safian TJ Mechanical engineering and machinery In this paper, cutting performance and failure characteristics of two PVD TiN coated and an uncoated tungsten carbide grades with identical geometry are presented. Face-milling tests of Inconel 718 superalloy were performed to investigate the effect of cutting speed and feed rate on tools performance under wet conditions. Tools were thoroughly examined under SEM at two stages in order to reveal the failure modes and wear mechanisms. These stages were after cutting for 5 s and when the tool failed. It was noted that the coating resulted in a marginal improvement, as it was delaminated by adhering workpiece material at the beginning of the cut, impeding the performance of the tool for the rest of the experiment. A combination of progressive chipping and flank wear was the general mode of tool failure, former being dominant at high speeds and the latter at the low speed region. Results showed that uncoated tool performed better than coated tools at low cutting speeds while coated tools gave slightly better performance as the speed was raised. Elsevier 2001-10-03 Article PeerReviewed application/pdf en http://eprints.utm.my/5688/1/ssharif2001_cuttingPerformanceand_WearCharacteristics.pdf Jawaid, A. and Koksal, S. and Sharif, Safian (2001) Cutting performance and wear characteristics of PVD coated and uncoated carbide tools in face milling Inconel 718 aerospace alloy. Journal of materials processing technology, 116 (1). pp. 2-9. http://dx.doi.org/10.1016/S0924-0136(01)00850-0 10.1016/S0924-0136(01)00850-0
spellingShingle TJ Mechanical engineering and machinery
Jawaid, A.
Koksal, S.
Sharif, Safian
Cutting performance and wear characteristics of PVD coated and uncoated carbide tools in face milling Inconel 718 aerospace alloy
title Cutting performance and wear characteristics of PVD coated and uncoated carbide tools in face milling Inconel 718 aerospace alloy
title_full Cutting performance and wear characteristics of PVD coated and uncoated carbide tools in face milling Inconel 718 aerospace alloy
title_fullStr Cutting performance and wear characteristics of PVD coated and uncoated carbide tools in face milling Inconel 718 aerospace alloy
title_full_unstemmed Cutting performance and wear characteristics of PVD coated and uncoated carbide tools in face milling Inconel 718 aerospace alloy
title_short Cutting performance and wear characteristics of PVD coated and uncoated carbide tools in face milling Inconel 718 aerospace alloy
title_sort cutting performance and wear characteristics of pvd coated and uncoated carbide tools in face milling inconel 718 aerospace alloy
topic TJ Mechanical engineering and machinery
url http://eprints.utm.my/5688/1/ssharif2001_cuttingPerformanceand_WearCharacteristics.pdf
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AT koksals cuttingperformanceandwearcharacteristicsofpvdcoatedanduncoatedcarbidetoolsinfacemillinginconel718aerospacealloy
AT sharifsafian cuttingperformanceandwearcharacteristicsofpvdcoatedanduncoatedcarbidetoolsinfacemillinginconel718aerospacealloy