Evaluation of an intermittent sliding test for reproducing work material transfer in milling operations

► Evaluation of an intermittent sliding test mimicking chip/tool contact in milling. ► Analyses of material transfer between case hardening steel and PVD coated HSS tools. ► Good correlation between material transfer found in sliding and milling tests. ► Precipitates from the case hardening steel form an oxidized tribofilm. ► Adhered oxidised steel constituents found at low temperature/pressure areas.