New Cutting Material Series with Aluminium Oxide Coating

A CVD-coated cutting material series specially tailored to the demands of boring in all cast materials – GJL, GJV and GJS. has been developed by Mapal.

The new cutting materials HC720, HC725, HC730 and HC735 differ in the carbide substrate used in each case. All four impress with their extremely heat-resistant α-aluminium oxide coating with very good coating adhesion.

Cutting edges with the new coating offer the potential for a significant increase in the cutting speed during boring, even with dry machining.

Machining is easily possible with a cutting speed of 300m/min, thus offering a considerable boost in productivity. At the same time, the cutting edges achieve significantly longer tool lives, as examples in practice show: when machining GJL25, the tool life was tripled compared with the PVD cutting material HP455 used to date.