Abstract
Tool wear during hard turning influences the properties of the workpiece surface and subsurface layer significantly. Due to increasing flank face wear at the cutting edge, the contact conditions between tool and workpiece are changed. The mechanical and thermal load in the workpiece surface increases during the process. This favors the formation of white layers and of residual stress gradients in the subsurface zone of hardened workpieces whereby the components life time is reduced. The article presents novel modifications of the tool geometry, which leads to a considerable prolongation of the tool life time. This advanced tool design enables the production of constant material properties in the surface and subsurface zone during a broad time window.
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Acknowledgments
The authors like to thank the German Research Foundation (DFG) for funding this work within the project “Methods to reduce the influence on workpiece properties during hard machining”. We also express our gratitude to the CeramTec company, who supported the cutting tests.
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Denkena, B., Boehnke, D. & Meyer, R. Reduction of wear induced surface zone effects during hard turning by means of new tool geometries. Prod. Eng. Res. Devel. 2, 123–132 (2008). https://doi.org/10.1007/s11740-008-0089-1
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DOI: https://doi.org/10.1007/s11740-008-0089-1