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A critical overview of machining simulations in ABAQUS
RISE, Swerea, Swerea KIMAB.
2014 (English)Report (Refereed)
Abstract [en]

Metal cutting is one of the most commonly occurring manufacturing processes in the industry and major effort is made to improve its processes. Cutting tools are expensive and have a life length measured in minutes, why predictions of tool wear are of great interest. Finite Element (FE) simulations have a central role in the development of tools and cutting processes, but performing simulations of metal cutting is not easy. The method chosen for the chip formation has a large impact on the result of the simulations. The scope of this work includes a survey on important parameters and different possibilities to form a chip in simulations of metal cutting in ABAQUS/Explicit. Particular emphases are placed the on prediction of flank wear and how the hardening implemented in the material model effects this. The approach has been to start with a literature study and thereafter make simulations in ABAQUS/Explicit. FE simulations, of cutting, with different damage criteria and simulations with SPH (Smooth Particle Hydrodynamics)- method are presented. None of the possibilities to form a chip in ABAQUS/Explicit, as implemented today, seems to be sufficient for simulations of cutting to predict flank wear. The SPH-method will be a good alternative for simulations of metal cutting in ABAQUS/Explicit if temperature dependency is implemented. The material model in general, the type of hardening in specific, has an impact on the chip-form and the stress state in the chip and workpiece. And thereby effects the flank wear.

Place, publisher, year, edition, pages
Swerea KIMAB AB , 2014.
Series
Rapport / Institutet för metallforskning, ISSN 1403-848X ; KIMAB-2014-127
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-13041OAI: oai:DiVA.org:ri-13041DiVA: diva2:973235
Available from: 2016-09-22 Created: 2016-09-22Bibliographically approved

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  • apa
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