!9# Sandvik Coromant T-Max P Carbide Turning Insert, VNGP, 35 Degree Diamond, Chip Groove Chipbreaker, GC1005 Grade, Multi-Layer Coating, VNGP 330, 3/8" iC, 0.008" Corner Radius (Pack of 10)
The Sandvik Coromant VNGP GC1005 indexable turning insert with a choice of DS or groove chipbreaker style has a 35-degree diamond shape (also called rhombic), providing wear resistance without limiting shock resistance for medium machining to finishing heat resistant super alloys (HRSAs) in average to good machining conditions. This double-sided negative insert has chip grooves on both sides, a hole in the center, and four cutting edges. It has strong edges, zero clearance, and is a better choice for external turning than a positive insert. It can also be used for longitudinal turning, profiling, and when there is limited machine power or tendency toward vibration. GC1005 grade is a combination of carbide and a coating of titanium nitride (TiN) and titanium aluminum nitride (TiAlN) applied through physical vapor deposition (PVD), which provides hardness for wear resistance without limiting shock resistance, resistance to plastic deformation, and the ability to withstand high temperatures. 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 VNGP GC1005 is available with a choice of two chipbreakers: DS or groove. The DS chipbreaker is designed for medium machining cutting depths and feed rates, and the groove chipbreaker is designed for low cutting depths and feed rates. Tolerance of the distance from the outer edge of the inscribed circle to the point of the diamond is + or - 0.001”. Tolerance of the theoretical diameter of the insert is + or - 0.001”. 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 Holders
These inserts are part of the Sandvik Coromant TMax P Negative Insert family, which means they can be used with CoroTurn RC, a clamp-style insert holding system. This system is for use when stability and security are essential for productive turning of large components. The system is mostly used for external turning, from roughing to finishing, but also for internal turning.
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