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A pragmatic approac...
A pragmatic approach for assessment of laser-induced compressive residual stress profiles
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- Fischer, Andreas (författare)
- University of Kassel, Institute of Materials Engineering – Metallic Materials, Kassel, Germany
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- Dewi, Handika Sandra (författare)
- Luleå tekniska universitet,Produkt- och produktionsutveckling
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- Volpp, Joerg (författare)
- Luleå tekniska universitet,Produkt- och produktionsutveckling
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- Otero Tranchero, Jacobo (författare)
- AIMEN Centro Tecnológico, Laser Applications Centre, Porriño, Spain
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- Arias Otero, Jorge Luis (författare)
- AIMEN Centro Tecnológico, Laser Applications Centre, Porriño, Spain
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- Souto Grela, Javier (författare)
- AIMEN Centro Tecnológico, Laser Applications Centre, Porriño, Spain
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- Köcher, David (författare)
- University of Kassel, Institute of Materials Engineering – Metallic Materials, Kassel, Germany
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- Krooß, Philipp (författare)
- University of Kassel, Institute of Materials Engineering – Metallic Materials, Kassel, Germany
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- Kaplan, Alexander F.H. (författare)
- Luleå tekniska universitet,Produkt- och produktionsutveckling
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- Niendorf, Thomas (författare)
- University of Kassel, Institute of Materials Engineering – Metallic Materials, Kassel, Germany
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(creator_code:org_t)
- Elsevier, 2021
- 2021
- Engelska.
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Ingår i: Journal of Manufacturing Processes. - : Elsevier. - 1526-6125 .- 2212-4616. ; 68, part A, s. 778-787
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Laser hardening is a very efficient technique for local surface treatment, however, in case of complex and large components robust processing is highly challenging due to limitations in terms of the absolute size of the overall heat-affected zone. As is shown in the present work, an increased in-depth effect can be achieved by tailoring the laser parameters without melting the surface layer. Optimization of process parameters leads to an elaborate test design demanding numerous verification measurements to determine essential material properties. In this context, the evaluation of compressive residual stress values in the surface layer is very important, e.g. in case of fatigue loaded components. However, residual stress profile measurements obtained by X-ray diffraction are very time-consuming and, thus, can significantly impair the laser parameter development cycle. For this reason, the present study introduces a novel pragmatic approach allowing for qualitative evaluation of laser-induced compressive residual stress states, in particular for multiple laser pass processes based on a Gaussian-like intensity profile. Based on straightforward analytical evaluation, several characteristic features of the affected surface layer, e.g. the position of the residual stress transition zone, can be correlated to a change of the local energy input. A novel parameter referred to as modified area energy is established in present work for this purpose. This novel energy approach provides for an essential contribution to the field of laser hardening to considerably shorten the experimental effort within the laser parameter search.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
Nyckelord
- Laser hardening
- X-ray diffraction
- Mathematical screening approach
- Residual stress profiles
- Energy input
- Produktionsutveckling
- Manufacturing Systems Engineering
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Fischer, Andreas
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Dewi, Handika Sa ...
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Volpp, Joerg
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Otero Tranchero, ...
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Arias Otero, Jor ...
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Souto Grela, Jav ...
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visa fler...
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Köcher, David
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Krooß, Philipp
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Kaplan, Alexande ...
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Niendorf, Thomas
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visa färre...
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