ชนิดของเม็ดมีดกลึงเซาะร่อง วัสดุ CBN 

New Kennametal CBN Portfolio for Grooving Applications

Kennametal has developed a standard CBN portfolio, in grades KB5625 and KB1630, for grooving applications using A4™ and Top Notch™ platform.

Top Notch Platform Features:

Our rigid clamping design prevents insert movement during high-feed rate applications. This benefit ensures excellent surface finish, improved productivity, and superior tool life, and promotes perfect concentricity. The rugged bridge clamp generates locking forces in three directions to provide superior resistance to side thrust and tangential forces.

A4 Platform Features:

One tool for turning, facing, grooving, face-grooving, and cut-off, in OD and ID applications —that means exceptionally fast cycle times, no turret indexes. Extra-long clamping area, ground 120° bottom prism seating surface, and an exclusive top guide rail combine to deliver unsurpassed grooving and side-turning stability! Precise insert positioning is ensured —for accurate cuts. Combine the ground 120 bottom prism seating surface and an exclusive top guide rail to deliver unsurpassed grooving

and side-turning stability.

KB5625

·       Perfect balance of toughness and wear resistance to handle continuous machining of hardened steels with the higher cutting widths found in grooving applications.

·       PVD coated and contains highly stable ceramic binders for low wear rates.

·       Proven solution in finishing of Ni-based super alloys, hardened steels and skilled cast iron.

·       Fine CBN grain size, distribution characteristics and the right volume composition give this grade its unusually high toughness for its class, and a high quality cutting edge for superior surface finish.

KB1630

·       Market leading toughness allows for aggressive feeds, cut widths and severe interrupted cutting.

·       Toughness allows for sharper edges to be used – great for machining strain-hardening high-temp alloys.

·       Perfect where ‘titanium-free’ tooling is required by the customer.

·       High CBN content gives superior abrasion resistance.

·       High quality edges with 1 – 2 μm grain size result in excellent surface finish.

Target Markets:

§  General Engineering

§  Transportation – Transmission Shafts, Crank Shafts

§  Aerospace – Jet Engine Components (inconel)