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Characterization of tool wear when machining Alloy 718 with high pressure cooling using conventional and surface-modified WC-Co tools
Chalmers University of Technology, Department of Materials and Manufacturing Technology, Gothenburg, Sweden.
Chalmers University of Technology, Department of Materials and Manufacturing Technology, Gothenburg, Sweden.
Högskolan Väst, Institutionen för ingenjörsvetenskap, Avdelningen för avverkande och additativa tillverkningsprocesser (AAT). (PTW)ORCID-id: 0000-0002-0895-3303
Högskolan Väst, Institutionen för ingenjörsvetenskap, Avdelningen för avverkande och additativa tillverkningsprocesser (AAT). (PTW)ORCID-id: 0000-0003-0976-9820
Visa övriga samt affilieringar
2016 (Engelska)Ingår i: The 7th International Swedish Production Symposium, SPS16, Conference Proceedings: 25th – 27th of October 2016, Lund: Swedish Production Academy , 2016, s. 1-7Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

Coolant supplied by high pressure into the cutting zone has shown to lower thermal loads on the tool when machining difficult-to-cut materials as Alloy 718. In this study, we investigate how the combination of high pressure cooling and tool-surface modifications can lead to further improvements regarding tool life. The general approach is to enhance the coolant-tool interaction by increasing the contact area. Therefore, we machined cooling features into flank and rake faces of commercially available cemented tungsten carbide inserts. In this way, the surface area was increased by ~ 12%. After the cutting tests, the tools were analyzed by scanning electron microscopy combined with energy-dispersive X-ray spectroscopy. Compared with conventional tools, the tool modifications reduced the flank wear by 45% for the investigated cutting parameters. Furthermore, we were able to significantly increase the cutting speed and feed rate without failure of the tool. The investigated surface modifications have great potential to enhance the productivityof metal cutting processes.

Ort, förlag, år, upplaga, sidor
Lund: Swedish Production Academy , 2016. s. 1-7
Nyckelord [en]
Superalloy, high pressure jet assisted machining, tool modification, wear characterization
Nationell ämneskategori
Bearbetnings-, yt- och fogningsteknik
Forskningsämne
TEKNIK, Produktions- och materialteknik; Produktionsteknik
Identifikatorer
URN: urn:nbn:se:hv:diva-10251OAI: oai:DiVA.org:hv-10251DiVA, id: diva2:1053143
Konferens
7th International Swedish Production Symposium, SPS16, Lund, Sweden, October 25–27, 2016
Tillgänglig från: 2016-12-08 Skapad: 2016-12-08 Senast uppdaterad: 2019-11-18Bibliografiskt granskad

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Tamil Alagan, NageswaranBeno, Tomas

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