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M.Sc. Matthias Zapf

Research Associate
department: Manufacturing and Materials Tech-nology
office hours: To be agreed
room: 102, Geb. 10.92
phone: +49 1523 9502634
Matthias ZapfUlj7∂kit edu

76131 Karlsruhe
Kaiserstraße 12

M.Sc. Matthias Zapf

Area of Research:

  • Gear Skiving
  • Electric Discharge Machining


General Tasks:



  • Skiving of hardend steel
  • Skiving of high-tensile internal gears


Test benches:


[ 1 ] Vargas, B.; Zapf, M.; Klose, J.; Zanger, F. & Schulze, V. (2019), "Numerical Modelling of Cutting Forces in Gear Skiving". Procedia CIRP 82, eds. Elsevier B.V., pp. 455-460.
Gear skiving is a high-performance machining process for gear manufacturing. Due to its complex kinematics, the local cutting conditions vary during tool engagement. Particularly, the local rake angle can reach highly negative values, which have a significant effect on the cutting force. In this paper, the Kienzle force model with additional coefficients was implemented in a numerical model to calculate local cutting forces considering the influence of local rake angle. The experimental validation based on total cutting forces shows good results and indicates an increase of model accuracy for a wide parameter range by considering the rake angle Variation.