New Coated Turning Grades From Sumitomo
Eastec 2021: The new grades feature heat-resistant, cemented carbide base material, which Sumitomo claims has excellent high-temperature hardness and strength.
Sumitomo showcases new coated turning grades for heat resistant alloys at Eastec, booth 5236. New to the AC5000S Series is the AC5005S for high-efficiency machining.
AC5005S features the newly developed heat-resistant, cemented carbide base material, which Sumitomo claims has excellent high-temperature hardness and strength for wear resistance and plastic deformation resistance during processing. The new grade reportedly has double the abrasion resistance compared to competitors. Rounding out the AC5000S series are the AC5015S for general purpose machining and the AC5025S for heavy, interrupted machining.
The AC5005S series incorporates physical vapor deposition coating technology, Absotech, as well as an AlTiSiN-based, multilayer thin film structure with heat resistance. This coating reportedly achieves crater wear resistance and flank wear resistance. The turning grade for exotics also have a tough carbide base material for maintaining hardness via a new sintering process. Sumitomo says the process improves toughness and has excellent boundary resistance, resulting in chipping resistance. Available chipbreakers for the AC5000S series include EEF for finishing, EEG for medium cutting and EEM for rough/interrupted cutting.
Related Content
-
Choosing Your Carbide Grade: A Guide
Without an international standard for designating carbide grades or application ranges, users must rely on relative judgments and background knowledge for success.
-
A New Milling 101: Milling Forces and Formulas
The forces involved in the milling process can be quantified, thus allowing mathematical tools to predict and control these forces. Formulas for calculating these forces accurately make it possible to optimize the quality of milling operations.
-
How to Mitigate Chatter to Boost Machining Rates
There are usually better solutions to chatter than just reducing the feed rate. Through vibration analysis, the chatter problem can be solved, enabling much higher metal removal rates, better quality and longer tool life.
