WFRF:(M’Saoubi Rachid)
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Wear of a high cBN content PCBN cutting tool during hard milling of powder metallurgy cold work tool steels
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- Saketi, Sara (author)
- Högskolan Dalarna,Materialteknik,Uppsala Universitet,Tribologi,Uddeholm Tooling
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- Sveen, Susanne (author)
- Högskolan Dalarna,Linköpings universitet,Institutionen för fysik, kemi och biologi,Tekniska högskolan,Dalarna University, Falun, Sweden,Materialteknik,Linköpings Universitet,Tribologi
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- Gunnarsson, S. (author)
- Uddeholms AB, Hagfors, Sweden
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- (creator_code:org_t)
- Elsevier, 2015
- 2015
- English.
- In: Wear. - : Elsevier. - 0043-1648 .- 1873-2577. ; 332, s. 752-761
- Journal article (peer-reviewed)
Abstract
Subject headings
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- The wear characteristics of a high cBN content PCBN cutting tool during hard milling of two different hardened cold work tool steels have been evaluated. Post-cutting examination of the worn cutting inserts were performed using high resolution field emission gun scanning electron microscopy, energy dispersive X-ray spectroscopy, Auger electron spectroscopy and optical surface profilometry. Also, the machined work material surfaces and collected chips were characterized in order to evaluate the prevailing wear mechanisms.The results show that both flank and crater wear is controlled by continuous wear due to tribochemical reactions, adhesive wear and mild abrasive wear. Besides, the cutting inserts show a tendency to micro chipping along the cutting edge especially at higher cutting speed. The latter mechanism was also found to be dependent on type of work material. High lateral resolution Auger electron spectroscopy of the crater region show that the worn surface is covered by a thin SixOy rich tribofilm with a thickness of 50-500 nm, the tribofilm being thicker on the binder phase regions. Also, the Co-rich regions of the binder phase seem to be more tribochemically affected by the prevailing contact conditions as compared with the Wrich regions of the binder phase and the cBN phase.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Keyword
- PCBN
- Milling
- Cold work tool steel
- Wear mechanisms
- Surface analysis
- AES
- Steel Forming and Surface Engineering
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
- Saketi, Sara
- Sveen, Susanne
- Gunnarsson, S.
- M’Saoubi, Rachid
- Olsson, Mikael
- About the subject
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- ENGINEERING AND TECHNOLOGY
- ENGINEERING AND ...
- and Materials Engine ...
- Articles in the publication
- Wear
- By the university
- Linköping University
- Högskolan Dalarna
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