CoroCut face groovingClick image to enlarge

Cutting tool and tooling systems specialist Sandvik Coromant has introduced the CoroCut system developed exclusively for face grooving.

Designed to deliver unmatched reliability and superior process security, even when machining deep and narrow face grooves, CoroCut QF also provides enhanced accessibility to awkward features.
“When machining a face groove, chips can easily get stuck in the groove and harm production efficiency, which is why process stability is so important,” explains Jenny Claus, product manager for Parting and Grooving at Sandvik Coromant.
“CoroCut QF features a strong design to promote high blade stiffness, while precision coolant further aids successful and repeatable face grooving. In fact, the insert is tilted for extra stability, while an innovative slit design ensures the correct clamping force is applied. Special rails at the top, bottom and back of the insert also facilitate process security by minimizing insert movement.”
The additional characteristics of CoroCut QF that boost process stability include a new version of the axial mounting CoroTurn SL head. Use of SL heads means customers can utilize CoroCut QF on damped Silent Tools boring bars for stable, high quality internal face grooving with increased accessibility to difficult to reach features.
The presence of precision over and under coolant on a tool of this type is unique in the marketplace and particularly useful when producing deep and narrow face grooves. Chips stuck in grooves can lead to insert breakage and jeopardized processes. During face grooving, it is common for operators to decrease the feed if chips jam, which in turn impedes productivity. As a result, good chip control and a rigid system that can handle the cutting forces are crucial. This capability can also provide the potential for unmanned machining.
In a customer case example, poor chip control and noise were among the issues when face grooving audio system parts made from low carbon steel on a CNC turning centre with 35 bar (508 psi) pressure coolant. By switching to CoroCut QF, the enhanced chip control and process security provided many benefits, most notably an increase in component completion from 50 to 120 components (140% more tool life). Furthermore, the need for the customer to stop production every 10 components to remove chips that could otherwise block turret rotation was eliminated.
CoroCut QF will be launched in cutting widths of 3 and 4 mm (0.118 and 0.157 inch), four grades (GC1105, GC1125, GC1135 and GC1145) with -TF geometry for deep face grooving. Tailor Made service is also available which makes it possible to build an optimized tool with the exact cutting depth and diameter range required for a specific component.

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