Secomax™ CH2540

Secomax™ CH2540 - Wiper inserts not just for increased surface finish.

Wiper inserts not just for increased surface finish

The new CH2540 has bimodal grain size distribution, where fine grained cBN (1 µm) with 15 µm grains added to the structure. One advantage of this type of structure is the crack deflection that the coarser grains cause.

Implementation of wiper geometries allows for feed rates of 300 percent of what could be attained with standard inserts, while achieving the same level of surface finish.

The tough CH2540 grade has once again proven successful during these cutting conditions.

WORKPIECE
Component	Ring Gear
Material	16MnCr5, SMG-H3
Hardness	60-62 Hrc
Surface	Pre-machined
Tool life crit.	Ra
CONDITIONS
Operation:	ID Turning, continuous cut
	Competitor	Seco CH2540
Insert:	CNGA120408….(Non wiper)	CNGA120408S-01525L1WZB CH2540
Coolant:	No	No
Cutting speed:	120 m/min	120 m/min
Feed rate:	0.14 mm/rev	0.40 mm/rev
Depth of cut:	0.12 mm	0.12 mm
Tool life:	500 parts/edge	800 parts/edge

At this customer has feed rate been increased from 0.14 mm/rev to 0.40 mm/rev and tool life from 500 parts to 800 parts.

This is not just a reduction of Time in cut with 65% it is also an increased tool life with 65%.

This is a true winning solution that will give the customer a real and quick cost saving.

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