Metrological characterization of the thermomechanical influence of the cross-section of the undeformed chip on the surface properties in turning of the aluminum alloy EN AW-2017
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Thomas Junge
Thomas Junge holds M. Sc. from Chemnitz University of Technology. He is working on his PhD at the Professorship Micromanufacturing Technology. His research area is the in-process measurement of force, temperature and tool wear during machining for the surface conditioning of aluminum alloys.
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Thomas Mehner
Thomas Mehner obtained his PhD degree in Mechanical Engineering at Chemnitz University of Technology. His main fields of research include X-ray diffraction as well as the relations between corrosion and microstructure.
Andreas Nestler obtained his PhD degree in Mechanical Engineering from Chemnitz University of Technology. He is leader of the Teaching and Research Group Machining and Force-controlled Processes. His main research lies in machining of aluminium matrix composites.
Andreas Schubert obtained his PhD degree in Mechanical Engineering from Technische Universität Dresden. In 2003 he was appointed Professor for Micromanufacturing Technology at Chemnitz University of Technology. Furthermore, he is head of the Competence Center Micromanufacturing and Surface Technologies – KoMOT at Fraunhofer IWU in Chemnitz.
Thomas Lampke is the current holder of the chair of the Materials and Surface Engineering Group of Chemnitz University of Technology. Together with his staff members, he does research in the fields of chemical coating and electroplating, thermal spraying, electrolytic and plasma-electrolytic anodising, interface engineering in material joints and composites, corrosions and wear protection as well as materials modelling and simulation.
Abstract
The surface integrity strongly affects the performance properties of parts. Therefore, it is of great importance to be able to measure and adjust the surface-layer properties during the manufacturing process. In particular, cutting operations are characterized by high mechanical loads and temperature gradients in the area of chip formation. To enable a targeted control of the surface-layer properties, a fundamental comprehension of the interrelationships between the thermomechanical impact and the thereby induced material modification is required. Hence, the subject of this study is to measure the thermomechanical changes during turning of the aluminium alloy EN AW-2017 and find correlations thereof to the surface integrity. In order to achieve a large variation of the thermal and mechanical loads, the feed f (0.04 mm to 0.2 mm) and the depth of cut
Zusammenfassung
Die Oberflächenbeschaffenheit wirkt sich stark auf die Einsatzeigenschaften von Bauteilen aus. Daher ist es von großer Bedeutung, die Eigenschaften der Oberflächenrandschicht während des Fertigungsprozesses messen und einstellen zu können. Insbesondere Zerspanungsprozesse sind durch hohe mechanische Belastungen und Temperaturgradienten im Bereich der Spanbildung gekennzeichnet. Um die Randschichteigenschaften gezielt einstellen zu können, ist ein grundlegendes Verständnis der Zusammenhänge zwischen dem thermomechanischen Einfluss und der dadurch induzierten Werkstoffveränderung erforderlich. Gegenstand dieser Studie ist es somit, die thermomechanischen Veränderungen beim Drehen der Aluminiumlegierung EN AW-2017 zu messen und Korrelationen zur daraus resultierenden Oberflächenbeschaffenheit zu finden. Um eine große Variation der thermischen und mechanischen Belastungen zu erreichen, werden der Vorschub f (0,04 mm bis 0,2 mm) und die Schnitttiefe
Funding source: Deutsche Forschungsgemeinschaft
Award Identifier / Grant number: 401805994
Funding statement: The scientific work has been supported by the DFG within the research priority program SPP 2086 (SCHU 1484/26-1, LA 1274/49-1) grant number 401805994.
About the authors
Thomas Junge holds M. Sc. from Chemnitz University of Technology. He is working on his PhD at the Professorship Micromanufacturing Technology. His research area is the in-process measurement of force, temperature and tool wear during machining for the surface conditioning of aluminum alloys.
Thomas Mehner obtained his PhD degree in Mechanical Engineering at Chemnitz University of Technology. His main fields of research include X-ray diffraction as well as the relations between corrosion and microstructure.
Andreas Nestler obtained his PhD degree in Mechanical Engineering from Chemnitz University of Technology. He is leader of the Teaching and Research Group Machining and Force-controlled Processes. His main research lies in machining of aluminium matrix composites.
Andreas Schubert obtained his PhD degree in Mechanical Engineering from Technische Universität Dresden. In 2003 he was appointed Professor for Micromanufacturing Technology at Chemnitz University of Technology. Furthermore, he is head of the Competence Center Micromanufacturing and Surface Technologies – KoMOT at Fraunhofer IWU in Chemnitz.
Thomas Lampke is the current holder of the chair of the Materials and Surface Engineering Group of Chemnitz University of Technology. Together with his staff members, he does research in the fields of chemical coating and electroplating, thermal spraying, electrolytic and plasma-electrolytic anodising, interface engineering in material joints and composites, corrosions and wear protection as well as materials modelling and simulation.
Acknowledgment
The authors thank the DFG for this funding and intensive technical support. Moreover, the English proofreading by Morgan Uland is gratefully acknowledged.
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© 2020 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Editorial
- Surface conditioning in machining processes
- Beiträge
- Concept for soft sensor structure for turning processes of AISI4140
- Temperature monitoring in the subsurface during single lip deep hole drilling
- Development of thin-film based sensors for temperature and tool wear monitoring during machining
- Metrological characterization of the thermomechanical influence of the cross-section of the undeformed chip on the surface properties in turning of the aluminum alloy EN AW-2017
- Potential of magnetic Barkhausen noise analysis for in-process monitoring of surface layer properties of steel components in grinding
Articles in the same Issue
- Frontmatter
- Editorial
- Surface conditioning in machining processes
- Beiträge
- Concept for soft sensor structure for turning processes of AISI4140
- Temperature monitoring in the subsurface during single lip deep hole drilling
- Development of thin-film based sensors for temperature and tool wear monitoring during machining
- Metrological characterization of the thermomechanical influence of the cross-section of the undeformed chip on the surface properties in turning of the aluminum alloy EN AW-2017
- Potential of magnetic Barkhausen noise analysis for in-process monitoring of surface layer properties of steel components in grinding
