Общий каталог Sumitomo 2018 - 2019 - страница 489

Предыдущая страница Следующая страница

Навигация

BNC500Coated SUMIBORON K Ductile Cast Iron

Coated CBN grade for ductile cast iron machining General Features Further improvements in the toughness of the sintered CBN and wear resistance from the application of a newly developed high-

purity TiC binder. In addition, it demonstrates exceptional wear

resistance by combining a ceramic coating with excellent heat

resistance. High-speed and high-precision machining is achieved

when finishing ductile cast iron. It also provides a long, stable

tool life in machining high-strength ductile cast iron, special cast

irons such as vermicular cast iron, and centrifugally cast iron.

Characteristics l Achieves a Long, Stable Tool Life at v =400 m/min

- c

Superior wear resistance, makes stable machining

possible under high-speed conditions. BNX10 BNC500

l Supports High-precision Machining

Can maintain excellent dimensional tolerance and

surface roughness. BN500 BN7000

BN700 a Small a Large Impact Force on Cutting Edge

Cutting

-Cast Iron Continuous CuttingMachined Surface Quality
Performance
Competitor´s CBNSurface Roughness
CarbidePrevious CBN10,0
5,0

Ceramic BNC500 Ra=0,6µm

0 BNC500 -5,0 Prolonged -10,0

Performance 10,0 5,0

Ceramic0Ra=2,3µm
-5,0
Cutting Length (km)-10,0
Work material: GGG70, Round BarCutting Length (km)
Insert type:CNGA 120408 NC-4Work material: GGG70
Cutting data: vc = 400 m/min, f = 0,2 mm/rev, doc = 0,2 mmCutting data: v = 400 m/min, f = 0,2 mm/rev, d= 0,2 mm
Wetcoc
Wet

Application Range High Precision Recommended

Machining Cutting Conditions Ductile Cast Iron v (m/min) c

100 200 300 400 500 lllll BNC500 Ceramic Coated Carbide Cermet f d oc (mm/rev) (mm)

AC405K, AC415K, AC420K 0,1 - 0,4 0,03 - 0,5

BN7000 k Coolant ... Wet

Depth of Cut (mm) Surface Roughness (µm)