Page 19 - ISCAR_ARTICLE_2020

Design for Milling
In the case of milling inserts, the rake face shape
is considered mainly from the point of view of chip
forming only - milling is a process of interrupted cutting
and therefore chip breaking creates no difficulties.
The rake face of the turning insert is also intended
mainly for chip formation, though it should enable chip
breaking. In the context of geometry, the rake face of
every indexable insert is a combination of concave and
convex areas.

Effect of 3D Modelling
Three-dimensional chip formation modelling represents
a new powerful design tool for the cutting tool industry.
Further development, based on the finite element
method (FEM), raised cutting action modelling systems
to a whole new level.
Today, cutting tool designers utilize advanced software
to simulate chip formation processes with a sufficient
approximation to reality.

Even though the software

still cannot replace machining
tests, it can contribute greatly

to the effective design of the

indexable inserts and, most
of all, their rake faces

ISCAR 19