Общий каталог Sumitomo 2018 - 2019 - страница 573

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Technical Guidance SUMIBORON

Cast Iron Machining

Advantages of Using SUMIBORON for Cast Iron Machining

Higher accuracy Longer tool life at higher cutting speeds

GG: Grey cast iron GGG: Ductile cast iron

Ceramic Coated carbide

Cermet BNS800 BNX10

BNS800 BN7000 BN7000 BNC500 BNC500 Ceramic Coated carbide BNC500

Cermet Ceramic BN7000 Coated carbide Cermet

Good f Surface roughness Ra (μm)Tool life ratioTool life ratio
Turning
Cast iron structure and wear shape examples

0,4 Work material: GG25 10

GGGGGDRY
Insert: SNGN120408(BN500)8
0,3Cutting data: v= 450 m/min
c6
Structuredoc = 0,25 mm
0,2f = 0,15 mm/rev4
0,1Continuous cutting2
WET
0200400
0
MatrixPearlitePearlite + Ferrite2,557,51012,5cutting speed Vc (m/min)
Cutting length (km)
WetWETN/C lathe DRY Machine:
( WaterWork material: GG25 (HB200)
soluble)Holder: MTJNP2525
Insert: TNMA160408(BN500)
Cutting data: vc = 110~280 m/min
Dry= 0,1 mm d

oc For machining cast iron with SUMIBORON, cutting speeds (Vc) f = 0,1 mm/rev Crater wear WET should be 200m/min and above. WET cutting is recommended.

(vc ≥ 200 m/min)

Milling

SUMIBORON BN Finish Mill EASY

- High speed machining Vc = 2000m/min

- Surface Roughness Rz=3,2 (Ra=1,0)

- Running cost is reduced because of economical insert

- Easy insert setting with the aid of a setting gauge

- Safe, anti-centrifugal force construction for high speed

conditions

0,25 250 Ceramic Cutting data:

Vc=400m/minVc=600m/mindoc = 0,5 mm, f t = 0,15 mm/tooth
0,20200
Dry
Vc=1000m/min

0,15 Vc=600m/min 150

0,10 100 Typical thermal crack

0,05Vc=1500m/min50
Wet
00

0 20 40 60 80 100 120 140 160 180 200 300 450 600 750 900 1050 1200 1350 1500

Number of pass Cutting speed (m/min) Dry cutting is recommended for high speed milling of cast iron Work material: GG25 with SUMIBORON. Technical Guidance Tool material: BN700

Cutting data: doc = 0,5 mm, f t = 0,1 mm/tooth, DRY