Page 247 - Parlec Catalog
P. 247
Insert Selection Guide
Insert Carbide Grades 245
Uncoated Grades
C1 Is a strong micro grain carbide which resists chipping, breaking, and edge build-up. Great for roughing at high
feed rates on interrupted cuts. Use for titanium, high temperature alloys, inconel, and hastalloy.
C2 Is a relatively fine grain grade on a WC-CO base. It has very good toughness and good rake angle resistance
to abrasive wear. Applications include stainless steels, cast irons, non-ferrous metals, and most high
temperature alloys.
C7 Finish and light roughing non-coated grade for steel and steel castings. Performs best in favorable
conditions. High speeds and moderate feeds.
Titanium coated Grades
TT Is a very tough grade with a triple coating of Tin, TiC, and TiN. It is a good grade for roughing and finishing in
less than ideal conditions. Used in machining steels and stainless steels at low speeds.
TE Is a carbide grade with a PVD coating. It is used for machining aerospace materials, high temperature alloys,
and stainless steels.
TR Is a PVD coated micro grain carbide. Performs well in alloy steels, nickel-based materials, and heat-treated
materials up to Rc: 40.
SN Delivers outstanding performance in moderate-roughing to semi-finishing operations, especially in
interrupted cuts. An advanced multi-layer coating (TiCN/AI2 O3 /TiN), applied over a cobalt enriched
substrate, gives SN a near optimum balance of toughness, surface lubricity, and resistance to metal build-up
to yield excellent wear resistance throughout its application range.
VN Is a micro-grained grade with an excellent balance of toughness and wear resistance. Coated with PVD TiN for
improved lubricity and wear resistance with up-sharp cutting edges, VN excels in light roughing to high-speed
finishing of high-temperature alloys, stainless steels, cast iron, aluminum, and non-ferrous materials.
Cermet Grades
CT Is a cermet grade of TiC and TiN particles in a nickel cobalt binder, for finishing steels at high cutting speeds.
CM Is a cermet grade. It is slightly less hard than CT and can be used in less favorable conditions.
CR Is a titanium nitride cermet which combines toughness and edge wear. Use on steels up to Rc: 35.
CC A titanium coated cermet for better wear resistance.
Aluminum oxide coated Grades
AL Is an AL2 O3 coated insert. Its application is machining cast iron and steels at moderately high speeds.
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