Page 18 - Iscar Article 2_2017

evacuation abilities, allowing considerably
increased productivity. The serrated edge
that chops the chips also enhances vibration
resistance and, together with the relieved neck of
the endmill, contributes to stable cutting under
high tool overhang conditions.

Why does the ECR-B3-R-C family have 3 flutes
and no more? In milling aluminum, chatter
and unwelcome vibrations that are generated
during the cutting process are a factor of
primary importance. Various researches and
metalworking practice show that a 3 flute
configuration is the optimal design for 90° solid
carbide endmills for machining aluminum. In
high-efficiency milling, this arrangement ensures
a flute volume that is necessary for chip flow
while not increasing chatter. The majority of the
Metalworking industries produce large and small endmills for use on aluminum are based on this
aluminum parts, and in many cases require approach and ISCAR’s ECR-B3-R-C
milling cutters with more modest dimensions. is no exception.

The size of these tools is not suitable for indexable CHATTERFREE
inserts and solid carbide tools have distinct
advantages. Moreover, the high accuracy of
solid carbide endmills renders them beyond
comparison when used in precision finishing
of larger components. ISCAR remains heavily
involved in the design and development of
advanced solid carbide tools for the milling of
aluminum. Recent progressive additions to this
comprehensive range have further increased their
value to users throughout the industrial world.

ISCAR’s ECR-B3-R-C family of 3-flute, solid
carbide endmills are designed for rough
machining at high MRR. The innovative
endmills have serrated cutting edges that divide
wide chips into narrow chips that are easily
evacuated. Inner coolant channels directed
to each cutting edge enables the delivery of
uninterrupted coolant flow to the cutting zone.
These two design features, in combination
with polished flutes, significantly improve chip

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