Общий каталог Sumitomo 2018 - 2019 - страница 574

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SUMIBORON Machining Hard-to-cut MaterialsTechnical Guidance

Powder Metal

1. Flank wear2. Surface roughness3. Height of burr
BN700
H1 (Carbide)BN700

T110A(Cermet) H1 (Carbide) BN700

T110A(Cermet) H1 (Carbide) T110A(Cermet)

Cutting length (km)Cutting speed (m/min)Cutting speed (m/min)
Work material: SMF4040 equivalentFor general power metal components, carbide and cermet grades can perform up to Vc=100m/min. However, around
Process details: ø100~300mm heavy interrupted facing with grooves and drilledVc=120m/min, wear becomes rapid and surface roughness deteriorates with increased burrs.
holes. (after 40 passes)SUMIBORON on the other hand, exhibits stability and superior wear resistance, burr prevention and surface roughness
Insert: TNGA160404 Cutting data: f=0.1mm/rev, d=0.1mm, Wetespecially at high speeds.

Heat Resistive Alloy Ni based alloy Typical tool damage of CBN tool when cutting Inconel 718 Cutting data: f = 0,06mm/rev, doc = 0,3mm, WET Cutting data: f = 0,12mm/rev, doc = 0,3mm, WET

Influence of cutting speed (Grade BNX20, f =0,06 mm/rev., L=0,72km) Vc = 300m/min Vc = 500m/min Notch wear BN700 BNX20 Flank wear Flank wear Whisker reinforced Influence of feedrate (Grade BNX20, Vc=300m/min, L=0,18km) ceramic

f = 0,12mm/revf = 0,06mm/revBN700
BNX20
Whisker reinforcedCoated carbide (K series)
ceramic
Notch wear Flank wear
Influence of tool grade (Vc=500m/min, f =0,12 mm/rev, L=0,36km)Cutting length (m)Cutting length (m)
BNX20BN700
Tool life criteriaTool life criteria
Notch wear = 0,25mmNotch wear = 0,25mm
Or flank wear = 0,25mmOr flank wear = 0,25mm
0,5mmBNX20 is recommended for high speed and low feedrate condition.BN700 is recommended for cutting at high feedrates.
Cutting data: d= 0,3mm, WETBN700 is recommended for cutting speeds below 240m/min(Over f=0,1mm/rev)
oc
Ti based alloy
BN700K10BN700K10DA150
BreakageBreakageBreakage

BN700

DA150 DA150

Cutting time (min) Cutting time (min) Cutting time (min)

Work Material: Ti-6Al-4VWork Material: Ti-6Al-4VWork Material: Ti-6Al-4V
Insert: DNM120404NFInsert: DNM120404NFInsert: DNMA150412
Cutting data: vc = 100m/min, doc = 0,1mm, f = 0,05mm/rev, WETCutting data: vc = 100m/min, doc = 0,1mm, f = 0,05mm/rev, WETCutting data: Vc = 120m/min, doc = 0,3mm, f =0,25mm/rev, WET
SUMIDIA positive type inserts are extremely good for Ti alloy,SUMIDIA positive type inserts are extremely good for Ti alloy,Negative type insert BN700 is excellent for high efficiency cutting.
due to high cutting edge strength and high wear resistance.due to high cutting edge strength and high wear resistance.(For large depth of cut and high feedrates)
Hard facing alloys
Work material: Colmonoy No.6BNS800 (Vc=300m/min)BNS800 (Vc=300m/min)
Whisker reinforced ceramic (Vc=50m/min)Work material: Stellite SF-20Competitor’s solid CBN
(Ni-based self fluxing alloy)(Co-based Self-fluxing alloy)
Cutting is difficult because of
Insert: SNGN090308large wear at Vc=50m/minInsert: SNGN090308
Cutting data:Cutting data:Chipping
v= 50, 300 m/minvc = 50 m/min
cf = 0,1 mm/rev
f = 0,1 mm/rev
d= 0,2 mmdoc = 0,2 mm

oc Small wear at V=300m/min Dry

Wet No chipping Cutting length (km) Cutting length (km)

Chipping

BNS800Whisker reinforced ceramicBNS800Competitor‘s solid CBN
(Vc=300m/min, After 2km Cutting)(Vc=50m/min, After 10m Cutting)(After 2km of cutting)(After 2km of cutting)