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Tool Wear Geometry Updating in Inconel 718 Turning Simulations.
Högskolan Väst, Institutionen för teknik, matematik och datavetenskap, Avd för maskinteknik.
Högskolan Väst, Institutionen för teknik, matematik och datavetenskap, Avd för maskinteknik.
2006 (Engelska)Ingår i: 9th CIRP International Workshop on Modelling of Machining Operation: Bled, Slovenia, 2006, s. 491-498Konferensbidrag, Publicerat paper (Övrigt vetenskapligt)
Abstract [en]

In machining of nickel based superalloys, such as Inconel 718, tool wear is a major problem due to the high stresses and the high temperatures at the tool chip interface. Enhanced knowledge of the tool wear mechanism and capability to predict tool wear are therefore of great importance in machining of nickel based superalloys. The objective with this paper is to investigate if the finite element method (FEM) can be used to predict the flank and crater wear of uncoated cemented carbide tool in turning ofInconel 718. An empirical model has been implemented in a commercial FE-code and the tool

geometry is continuously updated to capture the evolution of wear. Experiments have been conducted

to obtain parameters for the empirical wear model and for validation of the simulations. The worn

geometry at the flank and rake face as well as the cutting edge radius was measured with white light

interferometry. Wear model parameters were calibrated by fitting a simulation against measured worn

geometries at the flank and rake face. Then separate simulations at other cutting speeds were

compared with corresponding experiments to validate the model performance.

Ort, förlag, år, upplaga, sidor
2006. s. 491-498
Nationell ämneskategori
Materialteknik
Forskningsämne
TEKNIK, Produktions- och materialteknik
Identifikatorer
URN: urn:nbn:se:hv:diva-1909OAI: oai:DiVA.org:hv-1909DiVA, id: diva2:275521
Tillgänglig från: 2009-11-05 Skapad: 2009-11-05 Senast uppdaterad: 2009-11-06Bibliografiskt granskad

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http://www.fs.uni-lj.si/lasin/cirp9ws06/abstracts/Lorentzon.pdf

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Lorentzon, JohnJärvstråt, Niklas
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