The effect of runout errors on process forces and tool wear

Baumann, J.1, a; T. Siebrecht1, b; P. Wiederkehr2, c; Biermann, D.1, d

Institute of Machining Technology, TU Dortmund University, Baroper Str. 303, D-44227 Dortmund, Germany
Chair 14 for Software Engineering – Virtual Machining, TU Dortmund University, Otto-Hahn-Straße 12, D-44227 Dortmund, Germany

a); b); c); d)


The runout of milling tools results in uneven effective tooth radii and affects the occurrence of tool wear in machining processes. The load and, thus, the specific wear of teeth with increased effective radii is higher. In processes with small undeformed chip thicknesses, e.g., the finishing of titanium alloys, the runout error could even be greater than the undeformed chip thickness. In this case, at least one cutting edge does not remove any material. In this paper, the influence of the runout on wear effects is analyzed for an exemplary finishing process using cutting force measurements and a geometric physically-based process simulation.


Milling, Runout, Wear


Procedia CIRP, 79 (2019), p. 39–44, doi: /10.1016/j.procir.2019.02.008