Page 41 - Iscar Article 2_2017

ISCAR’s insert IQ845 SYHU 0704 for face milling
cutters is a good example of how computer
modeling and advanced pressing have resulted
in a successful product.

Computer modeling the chip flow has contributed
significantly to optimizing the rake face shape for
the family of ISCAR inserts CNMG-F3M that was
designed especially for the finish turning of ISO M
materials (austenitic, precipitation hardening and
duplex stainless steels).

Powder metallurgy is applied to the face of the
insert as well as its cutting edge. For example, the
inserts P290 ACKT of the ISCAR MILLSHRED
family possess serrated cutting edges that are
used as sintered. The serrated cutting edge
shreds the chip and so greatly improves milling
results in unstable conditions.

The concept of a cutting tool with mechanically-
clamped inserts pushed aside brazed cutting
edge applications once the industry learned
to produce sintered inserts with acceptable
accuracy and dimensional stability. However, for
high-precision cutting, rotating solid carbide and
also brazed tools still retain the lead. A one-
piece integral cutter, ground with strict tolerance
limits, always has the advantage in accuracy
in comparison with an assembled tool with
inserts. There is a viable indexable alternative
that not only overcomes the lack of accuracy but
improves the tool by making it both versatile and
economical: an innovative yet simple modular
cutter that can incorporate various replaceable
solid carbide heads.

MILLSHRED Insert

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