uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
The effect of inclusion composition on tool wear in hard part turning using PCBN cutting tools
Show others and affiliations
2015 (English)In: Wear, ISSN 0043-1648, E-ISSN 1873-2577, Vol. 334, 13-22 p.Article in journal (Refereed) Published
Abstract [en]

This work reports on hard part turning of carburizing steels using a PCBN cutting tool in fine machining. Emphasis is on the link between composition of the inclusions in work material and wear mechanisms of the cutting tool. A Ca-treated machinability improved 20NiCrMo steel was included together with three other carburizing steels with different inclusion characteristics. Machining tests were conducted to examine cutting tool life and its balance between excessive flank wear and crater wear. The wear mechanisms were examined using a scanning electron microscope (SEM) equipped with an energy dispersive X-ray spectrometer (EDS) and a secondary electron (SE) detector. The longest tool life was obtained when cutting the Ca-treated steel. The improved machinability is linked to the deposition of complex (Mn,Ca)S and (Ca,Al)(O,S) protective slag layers that form on the rake face of the cutting tool during machining. Cutting in this steel also resulted in a typical ridge formation in the tool edge crater. Transfer of workpiece material to the rake face crater is characteristic in hard part turning of steel with high cleanliness. This is suggested to be related to the lack of the sulfides that lubricate conventional machinability treated steels, and that the crater wear of low-sulfur steel is more pronounced than for steels with higher sulfur content.

Place, publisher, year, edition, pages
2015. Vol. 334, 13-22 p.
Keyword [en]
Tool wear, PCBN, Machinability, Steel, Inclusions
National Category
Materials Engineering
URN: urn:nbn:se:uu:diva-259644DOI: 10.1016/j.wear.2015.04.008ISI: 000357543300002OAI: oai:DiVA.org:uu-259644DiVA: diva2:847615

Member research program in materials and manufacturing at Swerea KIMAB, Ovako and Sandvik Coromant 

Available from: 2015-08-20 Created: 2015-08-10 Last updated: 2015-08-20Bibliographically approved

Open Access in DiVA

fulltext(4636 kB)122 downloads
File information
File name FULLTEXT01.pdfFile size 4636 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Hogmark, Sture
By organisation
Applied Materials Sciences
In the same journal
Materials Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 122 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 455 hits
ReferencesLink to record
Permanent link

Direct link