Multi-Layer Wear and Tool Life Calculation for Forging Applications Considering Dynamical Hardness Modeling and Nitrided Layer Degradation

As one of the oldest shaping manufacturing processes, forging and especially hot forging is characterized by extreme loads on the tool. The thermal load in particular is able to cause constant changes in the hardness of the surface layer, which in turn has a decisive influence on the numerical estim...

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Main Authors: Bernd-Arno Behrens, Kai Brunotte, Hendrik Wester, Marcel Rothgänger, Felix Müller
Format: Article
Language:English
Published: MDPI AG 2020-12-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/14/1/104
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author Bernd-Arno Behrens
Kai Brunotte
Hendrik Wester
Marcel Rothgänger
Felix Müller
author_facet Bernd-Arno Behrens
Kai Brunotte
Hendrik Wester
Marcel Rothgänger
Felix Müller
author_sort Bernd-Arno Behrens
collection DOAJ
description As one of the oldest shaping manufacturing processes, forging and especially hot forging is characterized by extreme loads on the tool. The thermal load in particular is able to cause constant changes in the hardness of the surface layer, which in turn has a decisive influence on the numerical estimation of wear. Thus, also during numerical wear, modeling hardness changes need to be taken into account. Within the scope of this paper, a new implementation of a numerical wear model is presented, which, in addition to dynamic hardness models for the base material, can also take into account the properties of a nitride wear protection layer as a function of the wear depth. After a functional representation, the new model is applied to the wear calculation of a multi-stage industrial hot forging process. The applicability of the new implementation is validated by the evaluation of the occurring hardness, wear depths and the locally associated removal of the wear protection layer. Consecutively, a tool life calculation module based on the calculated wear depth is implemented and demonstrated. In general, a good agreement of the results is achieved, making the model suitable for detailed 2D as well as large 3D Finite Element calculations.
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spelling doaj.art-17ec158096d74403859f327463b6f5ef2023-11-21T02:56:07ZengMDPI AGMaterials1996-19442020-12-0114110410.3390/ma14010104Multi-Layer Wear and Tool Life Calculation for Forging Applications Considering Dynamical Hardness Modeling and Nitrided Layer DegradationBernd-Arno Behrens0Kai Brunotte1Hendrik Wester2Marcel Rothgänger3Felix Müller4Institute of Metal Forming and Forming Machines, Leibniz University Hannover, 30823 Garbsen, GermanyInstitute of Metal Forming and Forming Machines, Leibniz University Hannover, 30823 Garbsen, GermanyInstitute of Metal Forming and Forming Machines, Leibniz University Hannover, 30823 Garbsen, GermanyInstitute of Metal Forming and Forming Machines, Leibniz University Hannover, 30823 Garbsen, GermanyInstitute of Metal Forming and Forming Machines, Leibniz University Hannover, 30823 Garbsen, GermanyAs one of the oldest shaping manufacturing processes, forging and especially hot forging is characterized by extreme loads on the tool. The thermal load in particular is able to cause constant changes in the hardness of the surface layer, which in turn has a decisive influence on the numerical estimation of wear. Thus, also during numerical wear, modeling hardness changes need to be taken into account. Within the scope of this paper, a new implementation of a numerical wear model is presented, which, in addition to dynamic hardness models for the base material, can also take into account the properties of a nitride wear protection layer as a function of the wear depth. After a functional representation, the new model is applied to the wear calculation of a multi-stage industrial hot forging process. The applicability of the new implementation is validated by the evaluation of the occurring hardness, wear depths and the locally associated removal of the wear protection layer. Consecutively, a tool life calculation module based on the calculated wear depth is implemented and demonstrated. In general, a good agreement of the results is achieved, making the model suitable for detailed 2D as well as large 3D Finite Element calculations.https://www.mdpi.com/1996-1944/14/1/104forgingwear calculationhardness modelingnitrided layerArchard modeltool life
spellingShingle Bernd-Arno Behrens
Kai Brunotte
Hendrik Wester
Marcel Rothgänger
Felix Müller
Multi-Layer Wear and Tool Life Calculation for Forging Applications Considering Dynamical Hardness Modeling and Nitrided Layer Degradation
Materials
forging
wear calculation
hardness modeling
nitrided layer
Archard model
tool life
title Multi-Layer Wear and Tool Life Calculation for Forging Applications Considering Dynamical Hardness Modeling and Nitrided Layer Degradation
title_full Multi-Layer Wear and Tool Life Calculation for Forging Applications Considering Dynamical Hardness Modeling and Nitrided Layer Degradation
title_fullStr Multi-Layer Wear and Tool Life Calculation for Forging Applications Considering Dynamical Hardness Modeling and Nitrided Layer Degradation
title_full_unstemmed Multi-Layer Wear and Tool Life Calculation for Forging Applications Considering Dynamical Hardness Modeling and Nitrided Layer Degradation
title_short Multi-Layer Wear and Tool Life Calculation for Forging Applications Considering Dynamical Hardness Modeling and Nitrided Layer Degradation
title_sort multi layer wear and tool life calculation for forging applications considering dynamical hardness modeling and nitrided layer degradation
topic forging
wear calculation
hardness modeling
nitrided layer
Archard model
tool life
url https://www.mdpi.com/1996-1944/14/1/104
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