TANG-GRIP and DO-GRIP Parting Inserts

January 01, 2014

ISCAR is introducing the IC5400 carbide grade, featuring an effective means of parting and grooving stainless steel. The new grade has a tough substrate, like the one used for IC830. It is MTCVD TiCN and alpha aluminum-oxide coated, with the SUMO TEC advanced post-coating treatment. This considerably improves resistance to flaking, chipping and abrasion, preventing built-up edge and this providing prolonged tool life.

The ISO application range of the new grade is M30. It was designed for parting and grooving stainless steel at low to medium cutting speeds under stable or unstable machining conditions.

Field tests clearly show the advantages of IC5400 machining. The new grade features substantial improvement in tool life. It was found that by using IC5400, cutting speed can be raised by 15 percent in comparison with IC830.

ISCAR is expanding its range of parting with LF, LFT and MF chipformers, for parting and grooving stainless steel and also for ductile materials. The new LF chipformer design features a positive rake inclination and sharp cutting edge. It exerts low cutting forces and reduces built-up edge. In addition, it efficiently narrows the chips, leaving a clean cut surface.

The LFT chipformer features basically the same design as the LF chipformer, except that it was reinforced by a T-land to improve its durability and its resistance to chipping of the cutting edge and corners. It can be applied at higher feed than the LF chipformer.

The MF chipformer has the basic design of the C chipformer with high deflector and smaller T-land, most suitable for medium to high feeds, suitable also for steel (ISO P).

ISCAR's new chipformers are available in grade IC5400 for general stainless steel applications and in grade IC830 for interrupted cut and high load applications. IC808 is also available. In the initial stage, the DGN LF and LFT and TAG LF are available in 2 and 3mm widths.

The combination of the new chipformers with IC5400 grade is ISCAR's first-choice recommendation for parting and grooving stainless steel.

Related Glossary Terms

  • built-up edge ( BUE)

    built-up edge ( BUE)

    1. Permanently damaging a metal by heating to cause either incipient melting or intergranular oxidation. 2. In grinding, getting the workpiece hot enough to cause discoloration or to change the microstructure by tempering or hardening.

  • cutting speed

    cutting speed

    Tangential velocity on the surface of the tool or workpiece at the cutting interface. The formula for cutting speed (sfm) is tool diameter 5 0.26 5 spindle speed (rpm). The formula for feed per tooth (fpt) is table feed (ipm)/number of flutes/spindle speed (rpm). The formula for spindle speed (rpm) is cutting speed (sfm) 5 3.82/tool diameter. The formula for table feed (ipm) is feed per tooth (ftp) 5 number of tool flutes 5 spindle speed (rpm).

  • feed

    feed

    Rate of change of position of the tool as a whole, relative to the workpiece while cutting.

  • grooving

    grooving

    Machining grooves and shallow channels. Example: grooving ball-bearing raceways. Typically performed by tools that are capable of light cuts at high feed rates. Imparts high-quality finish.

  • interrupted cut

    interrupted cut

    Cutting tool repeatedly enters and exits the work. Subjects tool to shock loading, making tool toughness, impact strength and flexibility vital. Closely associated with milling operations. See shock loading.

  • parting

    parting

    When used in lathe or screw-machine operations, this process separates a completed part from chuck-held or collet-fed stock by means of a very narrow, flat-end cutting, or parting, tool.

  • rake

    rake

    Angle of inclination between the face of the cutting tool and the workpiece. If the face of the tool lies in a plane through the axis of the workpiece, the tool is said to have a neutral, or zero, rake. If the inclination of the tool face makes the cutting edge more acute than when the rake angle is zero, the rake is positive. If the inclination of the tool face makes the cutting edge less acute or more blunt than when the rake angle is zero, the rake is negative.

  • titanium carbonitride ( TiCN)

    titanium carbonitride ( TiCN)

    Often used as a tool coating. See coated tools.

Additional Products from Iscar USA

The XNMU inserts are the original concept of double-sided inserts with 4 right-hand and 4 left-hand helical cutting edges for slot milling cutters. These inserts are made of SUMOTEC carbide grades, designed for milling alloy steel, ferritic and martensitic stainless steel, and cast-iron. 

The drill bodies are available in 3xD and 5xD length to diameter ratios. The inserts are supplied in a specifically developed user-friendly key, enabling easy mounting with no setup time.

The milling heads have been designed for shoulder roughing, semi-finishing and finishing applications with ramping down capability. The milling heads are available in .312-1.00” diameter range.

A new family of tools and economical 5 pocket adapters for existing TANG-GRIP inserts in sizes of 2 and 3mm. These new adapters will allow parting applications of bar diameters up to Ø45mm. A new SLIM-GRIP 1.2-1.6mm inserts for a pentagonal adapter suitable for parting up to 22mm bar diameter.

The advanced design combines a strong insert structure, a durable cutter body, secure mounting, and advanced carbide grades. This innovative solution enables face and square shoulder milling, while providing an additional option for milling close to shoulders where there are workpiece or work…

The NEOTURN XNMG demonstrates excellent chip control and highly stable tool life in a wide range of applications. The NEOTURN system also enables machining complicated workpiece shapes close to the tail stock where space is limited. This can be performed without replacing the holder and decreases…

When mounted in a NEOFEED tool, the insert enables a positive tool rake angle which assures smooth cutting and reduced cutting forces and power consumption. The insert pocket has a dovetail shape that provides rigid and reliable insert clamping and improves the a cutter’s capability to withstand…

135° Point Geometry – Split point geometry for superior drilling penetration and accuracy. Double-Margin Design – For improved drilling stability and smooth surface finish. Polished Flutes - Chip evacuation is improved during deep-hole drilling when the flutes are polished. Coolant Holes – Cooling…

The spline connection designation is SP… where the no. indicates the connection size.
The general duty cutting geometry of the heads is suited for efficient slot milling on a wide spectrum of workpiece materials for maximum depth of cut.

ISCAR is introducing 17 mm diameter PENTA inserts, designed for machining small size parts with up to 4 mm maximum grooving depth capability. The inserts are available in a range of widths from 0.25 to 3.18 mm, with different edge configurations for parting, grooving, turning and threading.