Iscar's Heliturn model features a unique, double-sided insert with 4 cutting edges for Fast Metal Removal (FMR) turning. The revolutionary Heliturn is a tangentially clamped insert utilizing a unique helical shaped cutting edge, useful for tremendous depths of cut and higher than common feed rate. The LNMX...-HT Heliturn insert is screw-clamped into the SLANR tool holder and fortified by the TLN ..-HT carbide seat. This seat has ground surfaces on the top and bottom, to establish perfect contact of the insert with the tool holders. The upper rake face of this insert is mounted level with the top of the tool holder to facilitate chips to flow across the insert, without being disrupted by clamps or the tool holder body. The 4 curved helical cutting edges insure positive radial rake angles and soft penetration into the material being cut. The reduced forces and smaller loads ensure better tool longevity, better stability and the ability to use particularly large depths of cut and elevated feeds. The chipformer, manipulates and breaks the chip into rib type curved sections which can easily be removed from the cutting area. This insert has a frontal clearance angle of 3.7 with a 6 side clearance angle to allow machining to a 90 shoulder. Depth of cut up to .315" and facing depths to .126" at up to .047" IPR are obtainable with Heliturn.

When opposed to CNMG/M 16... or WNMG/M 13... insert sizes with the same corner radius, much improved tool life can be predictable when using the LNMX 1506..-HT insert. Iscar has recently released a smaller size to the Heliturn family - the LNMX 1104..R/L-HT insert and tool holder for the common application range of up to .197" depth of cut. The new insert features all of the blessings of the larger insert. This magnifies the economical benefit in the medium machining application range. When compared to CNMG/M 43. 12... or WNMG/M 43. 08... insert sizes with the same corner radius, a substantially better tool life can be foreseen. The inserts are obtainable in .031, .047 and .063" tool nose radii. Heliturn inserts are available in the most exceptional carbide grades: IC9025, IC3028 , IC428, IC907, and IC908.

The external tool holders are available in 1, 1.25 and 1.5" shank sizes. Boring bars are offered in 1, 1.25 1.5 and 2" bar sizes. Also attainable are exchangeable heads. These tool holders have Iscar's unique Hard Touch coating, which extends holder life and resists corrosion. As a result of the placement of this insert, machining next to the tailstock is reasonable.

The high positive rake angle of these cutters allows 10-15% less power usage than normal tool holders at the same parameters.

By using Iscar's Heliturn tools, tremendous cost savings and profitability in lathe processes is assured.

A New 80 Degree Rhombic Insert with high helical cutting edge for high metal removal rates Iscar is presenting the CNMX 1207..-HTW insert family. The revolutionary insert has a very positive radial, helical cutting edge and a positive rake angle; a unification which substantially decreases the cutting forces. The insert's corner has a wiper configuration which supplies high surface finish even at high feed conditions, which in several occasions can omit a finishing cut. The corner angle is 88 degrees which provides increased strength. The CNMX inserts were produced for heavy machining applications. Their special design ensures constant, fast metal removal when using 80 degree rhombic inserts. They can be mounted on any standard tool holder that carries typical CNMG inserts, but the seat has to be replaced with a special seat: TCH 4. Iscar's R-clamp tool holders are highly favored for heavy machining applications.

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