WFRF:(Odén Magnus Professor)
Sökning: WFRF:(Odén Magnus Professor) > Wear of coated and ...
- Sveen, SusanneHögskolan Dalarna,Materialteknik,Linköpings universitet, Institutionen för fysik, kemi och biologi,Nanostrukturerade material,Tekniska fakulteten,Dalarna University, Falun, Sweden (författare)
Wear of coated and uncoated PCBN cutting tool used in turning and milling
- BokEngelska2014
Förlag, utgivningsår, omfång ...
- 2013-12-13
- Linköping :Linköping University Electronic Press,2014
- 39 s.
- electronicrdacarrier
Nummerbeteckningar
- LIBRIS-ID:oai:DiVA.org:du-16677
- ISBN:9789175194431
- https://urn.kb.se/resolve?urn=urn:nbn:se:du-16677URI
- https://doi.org/10.3384/lic.diva-102551DOI
- https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-102551URI
Kompletterande språkuppgifter
- Språk:engelska
- Sammanfattning på:engelska
Ingår i deldatabas
- SwePubSwePub
Klassifikation
Serie
- Linköping Studies in Science and Technology. Thesis,0280-7971 ;1634
Anmärkningar
- This licentiate thesis has the main focus on evaluation of the wear of coated and uncoated polycrystalline cubic boron nitride cutting tool used in cutting operations against hardened steel. And to exam the surface finish and integrity of the work material used. Harder work material, higher cutting speed and cost reductions result in the development of harder and more wear resistance cutting tools. Although PCBN cutting tools have been used in over 30 years, little work have been done on PVD coated PCBN cutting tools. Therefore hard turning and hard milling experiments with PVD coated and uncoated cutting tools have been performed and evaluated. The coatings used in the present study are TiSiN and TiAlN. The wear scar and surface integrity have been examined with help of several different characterization techniques, for example scanning electron microscopy and Auger electron spectroscopy. The results showed that the PCBN cutting tools used displayed crater wear, flank wear and edge micro chipping. While the influence of the coating on the crater and flank wear was very small and the coating showed a high tendency to spalling. Scratch testing of coated PCBN showed that, the TiAlN coating resulted in major adhesive fractures. This displays the importance of understanding the effect of different types of lapping/grinding processes in the pre-treatment of hard and super hard substrate materials and the amount and type of damage that they can create. For the cutting tools used in turning, patches of a adhered layer, mainly consisting of FexOy were shown at both the crater and flank. And for the cutting tools used in milling a tribofilm consisting of SixOy covered the crater. A combination of tribochemical reactions, adhesive wear and mild abrasive wear is believed to control the flank and crater wear of the PCBN cutting tools. On a microscopic scale the difference phases of the PCBN cutting tool used in turning showed different wear characteristics. The machined surface of the work material showed a smooth surface with a Ra-value in the range of 100-200 nm for the turned surface and 100-150 nm for the milled surface. With increasing crater and flank wear in combination with edge chipping the machined surface becomes rougher and showed a higher Ra-value. For the cutting tools used in milling the tendency to micro edge chipping was significant higher when milling the tools steels showing a higher hard phase content and a lower heat conductivity resulting in higher mechanical and thermal stresses at the cutting edge.
Ämnesord och genrebeteckningar
- PCBN
- PVD coating
- Wear mechanisms
- Tool wear
- Metal cutting
- Steel Forming and Surface Engineering
- Stålformning och ytteknik
Biuppslag (personer, institutioner, konferenser, titlar ...)
- Olsson, Mikael,ProfessorDalarna University, Falun, Sweden (preses)
- Odén, Magnus,ProfessorLinköpings universitet,Nanostrukturerade material,Tekniska högskolan,Linköpings universitet, Nanostrukturerade material(Swepub:liu)magod41 (preses)
- Wiklund, Urban,ProfessorÅngström Tribomaterials Group, Uppsala Universitet (opponent)
- Högskolan DalarnaMaterialteknik (creator_code:org_t)
Internetlänk
- http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-102551
- https://du.diva-portal.org/smash/get/diva2:779957/FULLTEXT01.pdffulltext
- http://liu.diva-portal.org/smash/get/diva2:678996/FULLTEXT02
- https://liu.diva-portal.org/smash/get/diva2:678996/COVER01.pdfcover
- https://liu.diva-portal.org/smash/get/diva2:678996/FULLTEXT02.pdffulltext
- https://urn.kb.se/resolve?urn=urn:nbn:se:du-16677
- https://doi.org/10.3384/lic.diva-102551
- https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-102551
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- Sveen, Susanne
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- Högskolan Dalarna
- Linköpings universitet
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