hig.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard-cite-them-right
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • sv-SE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • de-DE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Testprocedur för undersökning av adhesiv förslitning vid svarvning
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
2018 (Swedish)Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Adhesive wear in machining is caused by adhering through micro welding of workmaterial on the cutting tool, this may lead to the formation of built-up edge andbuilt-up layer. This is known as secondary adhesion, the wear mechanism mayalso lead to pieces of the tool coating being ripped of and following the chip, which is known as primary adhesion. The wear mechanism most often results in the deterioration of the cutting tool. The aim of this experimental study is toenable examination of the phenomena. The objective is to bring forth experimental equipment and measuring methods and procedures that can be used for this purpose. A method for examining the phenomena in turning was achieved using manual lathe and cemented carbide inserts of the type Sandvik “CNMG 12 04 08 -XM4325”, with a coating consisting of CVD Ti(C,N)+Al2O3+TiN. The inserts were marked at the rake face for reference in examination. The work material used wasthe quenched and tempered steel EN-34CrNiMo 6 and the austenitic stainless steel EN-1,4436. The cutting speed at which the adhesive wear is prominent in machining of these work materials, was determined by radial turning of the material ends. In order to remove the adhered work material, the inserts where cleaned with hydrochloric acid and ultrasonic washing. The inserts were examined with a scanning electron microscope (SEM) prior to and after cleaning. The results from the SEM examination show that the inserts have a spongy looking texture on the surface with craters and holes. By comparison of the surfaces between different engagement time with work the material, it was found that because of adhesive wear, the texture of the surface slowly changes. The changes consists of enlarging of existing craters and new ones being created. This result meant that the examination with SEM was deemed a good method for examining the phenomena. The results also showed that the texture of the surface could also be affected by the ultrasonic washing, which meant that this method of cleaning is not recommended. The recommendation is instead to bathe the inserts in the hydrochloric acid without the ultrasonic wash for 30 minutes.

Place, publisher, year, edition, pages
2018. , p. 61
Keywords [sv]
Adhesiv förslitning
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:hig:diva-26759OAI: oai:DiVA.org:hig-26759DiVA, id: diva2:1213364
Subject / course
Mechanical engineering
Educational program
Högskoleingenjör
Presentation
(Swedish)
Supervisors
Examiners
Available from: 2018-06-05 Created: 2018-06-04 Last updated: 2018-06-05Bibliographically approved

Open Access in DiVA

fulltext(35324 kB)112 downloads
File information
File name FULLTEXT01.pdfFile size 35324 kBChecksum SHA-512
4090d3fb7a9470be085b1f94bfcec6c11b0885f3645aeec15fd869df6828db0a17fc4e30065d901e0908d5a7c0460a48b5a2dc41bfc23f1a681db90f32354fe2
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Vik, Robert
By organisation
Department of Industrial Development, IT and Land Management
Mechanical Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 112 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

urn-nbn

Altmetric score

urn-nbn
Total: 143 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard-cite-them-right
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • sv-SE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • de-DE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf