Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
780751 | International Journal of Machine Tools and Manufacture | 2012 | 5 Pages |
Tool wear affects dimensions and surface quality of the workpiece as well as tool life whose unpredictability is a major process constraint in micromilling. In this paper tool wear progression in seven different coatings is monitored during micromilling of hardened steel at high-speed under dry cutting conditions. A comparison among them and to a commercial solution is reported and the best one is selected.
► Seven new coatings for reducing tool wear have been developed and tested. ► New coatings show homogeneity, low cutting edge radius changes and small droplets. ► Silicon content seems to be the crucial for applying ultra high speed micromilling. ► Monolayer nanostructured with low silicon content is preferable for industrial use. ► Reliable performance, tool wear strongly reduced, breakage avoided.