Iscar’s DoveIQTurn features a dovetail pocket combined with a lever clamping mechanism to provide what the company says is firm and rigid insert clamping that eliminates the need for the top clam, which interferes with the chip flow.
Rough turning is characterized by high D.O.C. (4-10 mm) and high feed rates (0.4-1.5 mm/rev). Usually, large single-sided inserts are used on top-clamp toolholders to withstand interrupted cut and high machining load. The current method of using single-sided inserts and top-clamp holders has the disadvantages of a low number of cutting edges and an interrupted chip flow due to the obstruction of the top clamp.
A precision ground seat and top clamp ensure excellent insert-seat contact.
Double-sided G-type inserts are limited up to 0.5-0.6 mm/rev feed, while the new, double-sided inserts with dovetailed flanks can run up to 1.0 mm/rev due to their open, unobstructed chipformer configuration.
Iscar has developed an innovative dovetail pocket combined with a lever clamping mechanism. The new system provides a very firm and rigid insert clamping that eliminates the need for the top clamp, which interferes with the chip flow.
With the dovetail clamping system, Iscar says there is no interference and the chips flow uninterrupted.
The DoveIQTurn clamping mechanism can firmly hold double-sided inserts featuring double negative prism flanks. The dovetail pocket and insert prismatic flanks prevent the insert from being lifted by the cutting forces. Double-sided dovetailed prismatic flank inserts are held firmly in place.
The cutting forces tend to cause the standard insert to tilt in standard lever clamp tools.
The double-sided inserts can be used in heavy chip load conditions.
Available are three insert geometries with prismatic flanks: WOMG-R3P-IQ, COMG-R3P-IQ and SOMG-R3P-IQ designed with a new R3P chipformer for rough turning of steel.
The new system enables 50% higher metal removal rates, when compared to the regular NMG double-sided insert.
