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MILLING TITANIUM

Cemented Carbide Grades for Milling Titanium

In indexable milling, ISCAR proposes several grades that were designed especially MILLING TITANIUM
for machining ISO S materials including titanium. Some of the grades are the
main grades; the others are considered as complementary. Fig. 3 characterizes
the application field of the grades in accordance with ISO 513.

Producers of titanium parts have high hopes for additive manufacturing (AM), that it will be a wind of
serious changes in technology. AM allows forming a nearer-to-net shape part to minimize machining
operations substantially. Removing high-volume material during rough cuts will be cancelled and it
will automatically change the machine tool population of a company: heavy duty machines will simply
disappear. However, despite the great success of AM, experts believe that introducing this innovative
and promising method will take time. Strict safety requirements from the aerospace industry, the
main consumer of titanium components, necessitate extreme caution in adoption of the new ideas.

ISO S GRADES
S05

S10
S15 IC808
IC908 IC830
S20 IC840 IC5820
IC330 IC830
S25 IC882 IC328 IC928
S30

Main grade Complementary grade Post-coating SUMO TEC treatment
Post-coating treatment
IC380- Especially for milling Ti in stable conditions
Fig. 3 ISCAR carbide grades for indexable milling titanium

The main grades are represented by IC808/IC908 (the hardest grades),
IC882 (the toughest grade) and IC840, which is in between.

The complementary grades demonstrate good results in specific applications,
such as IC380 with its impressing performance when milling in stable conditions,
and, therefore, they can be used in machining titanium as well.

Fig. 4 Bronze “sun tan” carbide inserts

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