Page 24 - Iscar Article 2_2017

inserts? The deceptively simple, new extended
MILLSHRED P290
Milling titanium usually involves removing
considerable stock. True “workhorses” in
this field are extended flute indexable tools
(porcupines) that are intended for the rough
cutting of deep pockets, cavities and wide
edges. For these operations, ISCAR has
developed the HELITANG T490, a family
of advanced milling tools with tangentially
clamped inserts, and also the MILLSHRED
P290, a range of milling tools carrying serrated
inserts that provide an efficient chip splitting
(even chip chopping) effect. In addition, the
company offers HELITANG FIN, a family
of tangential porcupines that was designed
especially for semi-finish milling.
HELITANG FIN HELITANG T490
ISCAR has recently introduced a new group
of extended flute shell mills related to the
proven and popular HELIQUAD family. These
mills carry one-sided square inserts, which are
clamped radially. Why has the company, so
well known for its commitment to innovative
advantageous cutting geometries, equipped
the new mills with “traditional” simple square
24
flute tools feature a well-designed structure
resulting in significantly improved dynamic rigidity
and anti-vibration strength. In addition, radial
insert clamping enables the inclusion of a chip
gullet with a generous volume that answers
the requirements of free chip flow when milling
at high metal removal rates (MRR). Also, the
tools of more popular diameters have internal
channels, which are specially designed for
machining with a high-pressure coolant (HPC)
supply. Even these “simple” square inserts are
characterized by a progressive cutting geometry
that provides effective titanium milling.
EXTENDED FLUTE P290
While HELITANG T490 and MILLSHRED
P290 are intended for productive roughing,
and HELITANG FIN for qualitative semi-
finishing of titanium workpieces, the new
HELIQUAD (real HELIQUAD) extended flute
shell mills provide high-efficiency milling with
resulting surface conditions close to semi-
finish conditions.
Ti-TURBO
ISCAR recently introduced the Ti-TURBO family
of solid carbide endmills in a diameter range
of 6 to 20 mm. The new family was designed
for finishing operations and also for high-speed