A New PVD Coated Grade for Turning and Grooving High Temperature Alloys
ISCAR grade IC806 is a new complementary SUMO TEC PVD coated grade for machining high temperature alloys, especially Inconel 718
New Grade for Inconel Machining
Inconel 718 belongs to a family of nickel based superalloys which are used extensively for applications where withstanding high temperatures and high corrosion resistance is required. Inconel 718 is widely used in the aerospace industry in components which are placed in the hot section of the engine and in additional sectors of the oil industry. The microstructure of Inconel 718 is made of an austenitic structure possessing high tensile and yield strength.
The major problems encountered when machining Inconel 718 are characterized by very high temperatures on the cutting edge of the insert due to the abrasive elements in the material composition (high nickel content of 50-55% and chrome 17-21%) which causes high wear rates, chipping, notching and insert breakage.
These factors contribute to reduced tool life and high deformation of the cutting edge even at low cutting speeds.
Another complexity associated with Inconel is its tendency to malform, consequently due to its metallurgical sensitivity to residual stresses and self hardening effects during the cutting operation. ISCAR’s aim is to effectively machine this unique material, and has therefore successfully developed the IC806, which is a submicron grade with superior wear resistant properties and advanced PVD TiAlN. ISCAR’s SUMO TEC coating exhibits better results compared to competitor’s grades as well as other ISCAR grades.
has a hard submicron substrate with PVD coating and a special post coating treatment which provides substantially improved tool life and better reliability.
A very hard submicron grain size
New SUMO TEC PVD Coating
- Improves toughness
- Improves flaking and chipping resistance
- Provides very reliable and repeatable results
- Turning Inconel 718 at moderate to high cutting speeds
- For stable to slightly unstable conditions
|| High temp. alloys Ni or Co based
Grade Application Range on (ISO-S)
High Temperature Alloys