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Indexable Tools

Challenge Solid

Carbide for Small

Diameters

Rotating one-piece solid carbide tools traditionally dominate the
market for diameter ranges of up to 20 mm (.75”) and indexable
tool manufacturers have not yet succeeded in penetrating this solid
stronghold. Several important factors contribute to the historical
perception of solid carbide as a better bet for tooling reliability.

Solid carbide tool accuracy compares favorably with
that of indexable tools, particularly for small-diameter
endmills and for tools with diameters beyond the
range. However, the role of reduced accuracy for
tools of small diameter (for example, a milling cutter’s
radial run-out) increases in significance as a factor
affecting tool life.
NANMILL
An indexable tool is made up of a tool body,
replaceable inserts, and mechanical parts such
as clamping screws or wedges, which secure the
inserts in the body. Decreasing the tool diameter
necessitates reducing dimensions of the assembly
components. Reducing the size of the securing
elements leads to weakening their strength and the
tool becomes unable to withstand cutting loads
under normal machining data. This seriously limits
the tool application; further decreasing may cause
degradation of the entire assembly structure.

The prices of small rotating tools are often high
compared to the assembled concept, which adds
to the perceived limitations of indexable tools in the
small diameter range.

DUSTRY 4.0
30 MACHINING IN TELLIGENTLY