CBN inserts With HP-Style Chipbreaker

Contact Details

Tungaloy America Inc.
Address
3726 N. Ventura Dr.
Arlington Heights
60004
IL
United States
Phone
630-227-3700
Toll Free Phone
888-554-8394
Fax
888-554-8392

42.144245, -88.002711

December 02,2021
CBN Inserts Available in Double-Sided WavyJoint Style

Tungaloy Further Improves Its CBN inserts’ Cost per Edge, Reliability, and Chip Control in Finish Hard Turning Applications

Iwaki, November 2021 — Developed to ensure good chip breaking and control during finish machining of hardened steel parts, Tungaloy’s CBN inserts with HP-style chipbreaker are now available in a double-sided WavyJoint style that provides maximum tool reliability and stability. 

An innovative HP-style chipbreaker is developed to guarantee superior chip control during hard part turning at 0.2 mm (.008″) or lighter d.o.c. The chipbreaker is uniquely designed with an optimal distance between the cutting edge and the chip redirector. This design minimizes crater wear development on the rake face for maximum tool life and also helps lighten cutting forces during machining, eliminating chatter marks and part scraps for improved machining stability. 

 20 new inserts in HP-style chipbreaker are now available in WavyJoint style; namely, 4QS-CNGG1204..-HP, 4QS-DNGG1504..-HP, 6QS-TNGG1604..-HP, and 4QS-VNGG1604..-HP inserts. Conventionally, CBN cutting tips are brazed onto the seats ground, usually on one side, on a cemented carbide insert body to form a CBN insert. The WavyJoint technology further enhances the bond of CBN cutting tips on negative inserts with 160% increased brazing surface between the CBN tip and carbide insert body. Also, the technology uses 200% larger volume CBN tips for improved insert reliability and tool life. In addition, CNGG1204..-HP inserts are also available in wiper geometry, increasing surface finishing quality.      

Two insert grades are available: versatile BXA20 that covers continuous to interrupted cuts at low to medium cutting speeds and BXA10 that demonstrates exceptional wear resistance in continuous cuts of hardened steel, providing reliability and long tool life.

Related Glossary Terms

  • chatter

    chatter

    Condition of vibration involving the machine, workpiece and cutting tool. Once this condition arises, it is often self-sustaining until the problem is corrected. Chatter can be identified when lines or grooves appear at regular intervals in the workpiece. These lines or grooves are caused by the teeth of the cutter as they vibrate in and out of the workpiece and their spacing depends on the frequency of vibration.

  • chipbreaker

    chipbreaker

    Groove or other tool geometry that breaks chips into small fragments as they come off the workpiece. Designed to prevent chips from becoming so long that they are difficult to control, catch in turning parts and cause safety problems.

  • cubic boron nitride ( CBN)

    cubic boron nitride ( CBN)

    Crystal manufactured from boron nitride under high pressure and temperature. Used to cut hard-to-machine ferrous and nickel-base materials up to 70 HRC. Second hardest material after diamond. See superabrasive tools.

  • hard turning

    hard turning

    Single-point cutting of a workpiece that has a hardness value higher than 45 HRC.

  • 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.

  • turning

    turning

    Workpiece is held in a chuck, mounted on a face plate or secured between centers and rotated while a cutting tool, normally a single-point tool, is fed into it along its periphery or across its end or face. Takes the form of straight turning (cutting along the periphery of the workpiece); taper turning (creating a taper); step turning (turning different-size diameters on the same work); chamfering (beveling an edge or shoulder); facing (cutting on an end); turning threads (usually external but can be internal); roughing (high-volume metal removal); and finishing (final light cuts). Performed on lathes, turning centers, chucking machines, automatic screw machines and similar machines.

  • wear resistance

    wear resistance

    Ability of the tool to withstand stresses that cause it to wear during cutting; an attribute linked to alloy composition, base material, thermal conditions, type of tooling and operation and other variables.

  • wiper

    wiper

    Metal-removing edge on the face of a cutter that travels in a plane perpendicular to the axis. It is the edge that sweeps the machined surface. The flat should be as wide as the feed per revolution of the cutter. This allows any given insert to wipe the entire workpiece surface and impart a fine surface finish at a high feed rate.

Additional Products from Tungaloy America Inc.

The series is now introducing TCS18 and TCL18 inserts designed for left-hand cuts, expanding the product lines that, up to now, has offered right-hand inserts only. Grooving and parting tools commonly used in most of the operations performed in conventional CNC lathes and Swiss machines are right- Read More
BallFinishNose is an effective tool in finishing and semi-finishing, particularly on geometric surfaces and complex 3D contours common to die-mold or aerospace applications. The insert features a unique asymmetric shape. This design allows users to use the same side of the insert always facing the Read More
The DMH drill head features a fracture resistant design that is suitable for applications that involve drilling holes through thin-walled sections of workpieces. In normal circumstances, thin walls tend to spring back on the drill after the drill pierces through and exits the hole. In the process, Read More
DrillMeister drill sleeves are available in 16, 25, and 32 millimeters in diameters for metric sizes and 3/4 inches and one inch for imperial sizes that fit the drill holders of the same sizes equipped in Swiss lathes. All drill sleeves have a threaded connecting port on the sleeve end for easy Read More
Tungaloy has expanded its economical, double-sided negative insert line with the -28 chipbreaker. Featuring a pressed-in chipbreaker geometry with a large inclination angle on the sharp cutting edge, the -28 generates free cutting action with superior chip control. In addition, a negative insert Read More
FixRMill uses round inserts for machining dies and molds, especially complex male-female main parts such as cavities and projections. The round inserts feature anti-rotation notches on the insert clearance side and matching locations on the pocket seats. These notches not only prevent the insert Read More
Tungaloy continuously expands the advantages of its AddMeisterDrill exchangeable-head drill solution into a smaller diameter range. Ten new DMC precision drill heads have been added to the line for diameters ranging from 4.0 mm (.157″) to 4.9 mm (.192″), expanding the entire range from 4.0 mm (.157 Read More
Tungaloy has expanded its AddInternalCut groove turning tool series to include new TCIG12 inserts as well as additional TCIG10 inserts that allow a maximum groove width of 3.0 millimeters (.118 inches) in bores as small as 10.5 millimeter (.413 inch) diameter.
DoTriple-Mill and DoQuad-Mill face milling cutters now offer AH3225 grade inserts with Tungaloy’s latest coating technology. The nano-multilayer structure, strong coating-substrate adherence, and super-hard coating surface, engineered, the coating provide the grade with superior wear and fracture Read More
Turning threads on hardened parts can be a challenge when using coated cemented carbide inserts: the cutting edge rapidly wears out before finishing the entire thread profiles, inhibiting greater feed rates and D.O.Cs. to be applied for increased productivity. Of all Tungaloy CBN grades, BX330 Read More