Общий каталог Sumitomo 2018 - 2019 - страница 295

High Speed Finishing of Grey Cast Iron

Features

l High speed machining vc =1.500m/min

l Excellent surface roughness Rz=3,2 (Ra=1,0)

l Safety structure for the centrifugal force under high speed cutting

conditions

l Run-out is less than 10µm

l Easy assembling method using the setting gauge

l Running cost is reduced because of economical insert

SUMIBORON ”BN Finish Mill”

Application

GG25~GG30 (HB200~250) grey cast iron with pearlite matrix, and ferrite matrix (HB130~160) Application examples: engine block, cylinder block, etc

Specifications

FMU Type: ø80 ~ ø315 mm Insert: SNEW1203ADTR/L Low cutting force type: SNEW1203ADTR/L-S

Recommended Cutting Conditions

Speed: vc = 800 ~ 2000 m/min Feed: f = 0,1 ~ 0,3 mm/tooth t Depth: d = 0,5 mm or less oc Dry cutting

Performance

l Tool Life Diagram l Estimated Tool Life

Cutting Speed (m/min) Work Material : GG25 H 240 (Pearlite) B Cutting Speed : v = 400 ~ 4000 m/min c Feed Rate : f = 0,15 mm/tooth Metal Removal Rate (cm3) t Depth of Cut : d = 0,5 mm, Dry oc Work Material : GG25 H 240 (Pearlite) B Milling of ductile cast iron and alloy steel casting do not produce the best Cutting Speed : v = 600 ~ 4000 m/min l c results. Feed Rate : f = 0,15 mm/tooth t Dry cutting is recommended. Wet cutting will result in chipping of cutting

Depth of Cut : d = 0,5 mm, Dry l

oc edges in the early stages due to thermal cracking.

q = Delivery on request s = To be replaced by new item