Seal fins, which feature pockets and grooves with small radii, work as a gas seal between the rotating and stationary parts of a turbine.
CoroCut 1-2 grooving tools are robust, high-precision solutions that deliver consistent chip control and process security; critical aspects when producing seal fins. The newly developed 1.5 mm insert width is offered with -RO geometry in three grades: GC1105, GC1125 and S05F. Proven geometry and grades provide good chip formation and secure, reliable machining with excellent surface finish, says Sandvik Coromant, while a patented CoroCut rail interface ensures mounting security.
“Each periphery-ground carbide insert provides high levels of edge sharpness and the ability to hold tight tolerances,” explains Jenny Claus, product manager parting and grooving. “As a result, they allow the generation of even smaller radii profiles with the correct profile width.”
Importantly, profiling with a non-linear tool path (instead of plunging) using CoroCut 1-2 inserts will result in optimised chip control, even cutting wear and less component stress, states the company. Non-linear tool path profiling uses the whole front edge line of the insert and continuously changes the contact point between insert and material. The benefits are said to be far reaching, and include improved productivity, process security and tool life, as well as a reduced number of passes. All of the newly introduced inserts are available as standard stocked items.
Although optimised for HRSA materials, CoroCut 1-2 grooving inserts can also be applied successfully to stainless steel and steel workpieces.
