Sandvik Coromant CoroTurn 107 Carbide Turning Insert, TCMT, Triangle, MM Chipbreaker, GC1125 Grade, Multi-Layer Coating, TCMT 3(2.5)1-MM, 3/8" iC, 0.0157" Corner Radius (Pack of 10)

Description

The Sandvik Coromant TCMT GC1115 indexable turning insert with a choice of MM,
UM, or MF chipbreaker style has a triangle shape with a 7-degree clearance
angle, providing wear resistance for medium machining to finishing of
stainless steel in average to good machining conditions. This single-sided
positive insert has chip grooves on one side, a countersunk hole in the
center, and three cutting edges. It has a 7-degree clearance angle for light
cutting forces and side clearance, making it better than a negative insert for
internal turning. It can also be used when there is limited machine power, a
tendency toward vibration, or when either a large or small lead angle is
required. GC1115 grade is a combination of carbide and a coating of titanium
aluminum nitride (TiAlN) and chromium oxide (Cr2O3) applied through physical
vapor deposition (PVD), which provides hardness for high wear resistance at
high temperatures without limiting shock resistance, making this grade
suitable for finishing stainless steel at medium to low cutting speeds.
Resistance to thermal shock makes this a good choice for light, interrupted
cuts. PVD coatings give the insert longer life and better wear resistance than
uncoated inserts, and maintain a sharper cutting edge than those with chemical
vapor deposition (CVD) coatings. The TCMT GC1125 is available with a choice of
three types of chipbreakers: MM, UM, or MF. The MM and UM chipbreaker styles
are for medium machining cutting depths and feed rates. The MM and UM
chipbreakers have a higher range of cutting depths and feed rates than the MF
chipbreaker. The MF chipbreaker is for finishing operations and generates low
cutting forces, making this chipbreaker a good choice for thin-walled
components. Tolerance of distance from the base to the tip of the triangle is
+ or – 0.002” to 0.005”. Tolerance of the theoretical diameter of the insert
is + or – 0.002” to 0.005”. Insert thickness tolerance is + or – 0.005”.
Different insert shapes and sizes may have different inscribed circle (iC)
measurements, which are related to the insert’s range of cutting depths,
speeds, lead angle, and feed rates. The inscribed circle is the largest circle
that can be drawn within the edges of the insert shape. In general, as the
insert size and iC become larger, the maximum cutting depth increases. The
cutting depth influences the metal removal rate, number of cuts, chip
evacuation, and power required when using the insert.Indexable inserts are
small cutting tools designed to remove material in external and internal
cutting applications such as turning, milling, drilling, and grooving. They
are held by an insert holder, have multiple cutting edges, and can be rotated
when one edge wears down. Multiple inserts can be used to accomplish a variety
of cuts in one operation. An insert is either positive or negative, which
refers to the rake or clearance angle at which the insert removes material.
Inserts are coded according to their specific cutting and application
capability (e.g. VNMG 16 04 04-QM). Each part of the code represents details
of the insert shape, nose angle, clearance, tolerance, size, geometry, grade,
and chipbreaker style. Sandvik Coromant manufactures tools for turning,
milling, and drilling. The company, headquartered in Sweden, makes tools used
throughout the metalworking field, including the automotive and aerospace, die
and mold, and general engineering industries. Sandvik Coromant inserts meet
International Organization for Standardization (ISO) and American National
Standards Institute (ANSI) standards. Matching Inserts to HoldersThese inserts
are part of the Sandvik Coromant CoroTurn 107 Positive Insert family, which
means they can be used with CoroTurn 107 screw clamping system. The CoroTurn
107 is the first choice system for internal longitudinal turning of small
diameters, and is also used for external light roughing to finishing of
smaller, slender components.

Features:

• Designed for turning operations from medium machining to finishing on stainless steel in average to good machining conditions
• GC1125 grade is a PVD coating of titanium aluminum nitride (TiAlN) and chromium oxide (Cr2O3) over carbide that provides hardness for wear resistance without limiting shock resistance
• Triangle shape is suitable for light roughing and finishing, and is used when there is limited machine power, a tendency toward vibration, or when either a large or small lead angle is required
• Medium-machining (MM, UM) and finishing (MF) chipbreaker styles reduce buildup of chips at a range of cutting depths and feeds
• Positive single-sided insert with 7-degree clearance angle for light cutting forces and side clearance

Product Details:

• Package Dimensions ‏ : ‎ 3.5 x 1.4 x 0.3 inches; 0.18 Ounces
• Item model number ‏ : ‎ 69826244352
• Date First Available ‏ : ‎ August 25, 2010
• Manufacturer ‏ : ‎ Sandvik Coromant
• Best Sellers Rank: #1,053,664 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #1,196 in Turning Inserts
• #1,196 in Turning Inserts
• Customer Reviews: 5.0 5.0 out of 5 stars 1 rating