Abstract
Temperature measurement close to the point of its origin is of great importance during chip removal. Therefore, two different temperature measurement methods are used and compared with each other for turning of the aluminum alloy EN AW-2017. On the one hand, cutting temperatures are measured by three thermocouples embedded in the indexable insert. On the other hand, the temperature in the contact area of the tool and the workpiece is detected by a tool-workpiece thermocouple measuring the thermoelectric voltage resulting from the Seebeck effect. For the experiments the cutting speed remains constant while the depth of cut and the feed are varied.
The results show a rise of the cutting temperature with increasing cross-section of the undeformed chip. In comparison, the tool-workpiece thermocouple offers a higher sensitivity while the embedded thermocouples measure higher temperatures for large depths of cut. Hence, the suitability of the methods is affected by the cross-section of the undeformed chip.
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The scientific work has been supported by the DFG within the research priority program SPP 2086. The authors thank the DFG for this funding and intensive technical support.
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Junge, T., Nestler, A., Schubert, A. (2021). Application Potential of Thermoelectric Signals for Temperature Monitoring in Turning of Aluminum Alloys. In: Behrens, BA., Brosius, A., Hintze, W., Ihlenfeldt, S., Wulfsberg, J.P. (eds) Production at the leading edge of technology. WGP 2020. Lecture Notes in Production Engineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-62138-7_24
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