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Classe de CBN para torneamento de aço endurecido

 Série BC8200

New Coated CBN Grades for the
Modern Methods of Turning
Hardened Steels

BC8210 For Continuous and Light Interrupted Cutting

Outstanding Tool Life with High-speed Machining

Suitable for continuous cutting and Light interrupted cutting. BC8210 exhibits excellent chipping, flank and crater wear resistance, thereby providing a stable machining process at high speed cutting conditions.

BC8210 For Continuous and Light Interrupted Cutting

BC8220 General Applications

Achieves Impressive Tool Life Over a Wide Range of Cutting Conditions.

Highly suited to a wide application area from continuous through to heavy interrupted cutting. It also has excellent crater wear and fracture resistance due to the new CBN base material and together with a new coating dramatically extends tool life.

BC8220 General Applications

Ultra Micro-particle/ Heat Resistant Binder Technology

The new CBN substrate contains a new ultra micro-particle and heat resistant binder. This suppresses both chipping and crater wear that promotes longer tool life.

Optimised Substrate Technology with Ultra Micro-particle Binder

The ultra micro-particle binder prevents linear crack development to avoid sudden fracturing.

Optimised Substrate Technology with Ultra Micro-particle Binder

Positive Effect of the Newly Developed Heat Resistant Binder

By increasing the heat resistance of the binder, wear resistance due to the deterioration of the binder
component is increased, thereby suppressing crater wear, chipping and fracturing.

Positive Effect of the Newly Developed Heat Resistant Binder

Area of Application

Area of Application

Edge Preparation (Honing)

New VA honing type with improved fracture resistance for high speeds and feed.
In addition, a range of different honing types that can be used for various applications is available.

Edge Preparation (Honing)

Chip Breaker

A BR breaker has been added to achieve better chip control at higher depths of cut.
A versatile range of chip breakers are available for a wide range of applications.

Chip Breaker

BR Breaker (BC8220)

A reduced number of passes needed and improved chip control during high depth of cut.
Chips are formed with the effect from the rake angle, and the multi stage breaker wall supports a wide range of cuts.

Recommended Cutting Conditions : vc=80-200 m/min, f <0.3 mm/rev, ap=0.6-1.0 mm

BR Breaker (BC8220)

Combination of BF Breaker and WS Wiper Insert

CNGM and DNGM types are now available with new inserts that combine a BF chip breaker with a WS wiper Insert. ( BC8210 : BF-oNGMooooooTSWS2, BC8220 : BF-oNGMooooooTAWS2 ) It is effective for chip control and improvement of finished surface roughness without worrying about the hand of the tool even when continuous external or internal turning and facing.

Combination of BF Breaker and WS Wiper Insert

Comparison of Wear Resistance During Continuous Cutting

Defects due to crater wear are suppressed and tool life is improved compared to conventional products.

Comparison of Wear Resistance During Continuous Cutting

Comparison of Fracture Resistance During Medium Interrupted Cutting

Excelling in suppressing chipping and cracks, it also improves fracture resistance after crater wear that provides a stable cutting action that improves tool life.

Comparison of Fracture Resistance During Medium Interrupted Cutting

Examples of Usage

Examples of Usage