Общий каталог Sumitomo 2018 - 2019 - страница 477

SUMIBORON Insert With Chipbreaker H

Break Master FV / LV / SV Hardened Steel

N- - -

Characteristics

l SUMIBORON one-use insert with chipbreaker.

l N-SV type is perfect for carburised layer removal while N-FV / N-LV types

are best suited to finishing of hardened steel.

l Breaker included on the CBN edge, chipbreaking effect can be maintained

throughout machining process.

l Unique breaker design can be applied to both hardened and non-hardened

parts with effective chip control. l SV type lineup now includes BNC2010 / BNC160 for good wear resistance, while SUMIBORON BNC2020 / BNC200 allows high efficiency machining.

In addition to general purpose SUMIBORON BNC2020 / BNC200, the

l N-FV / N-LV type lineup includes BNC2010 / BNC160 for excellent wear

resistance and general purpose uncoated SUMIBORON BN2000.

N-SV breakage breakage

Competitor´s BNX20 0,2 CBN N-LV BNC200 0,1

N-FV

v c=100m/min, f=0,13mm/rev d =0,4mm, x3 passes, Dry oc Stable tool life with BNC200

* When machining heat treated steel harder than HRC50 the depth of cut should not exceed 0,5 mm.

Application Examples

External Carburised Layer Removal Carburised Face Layer Removal Break Master N-SV type improves chip control with increased productivity until the pre-set tool life.

Break Master N-SV

Tool life = 200pcs Break Master N-SV No chip control problem No breaker No constant stopages or incorrect part dimension Constant chip control problem problem and the chips are small. BNC200 (no breaker)

Double the tool life of competitor’s CBN Tool life = 200pcs No. of pcs / unit of time (relative)

Work material: 42CrMo4, Carburised steel (shaft)