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Solid carbide drill for hardened steel
VCHSM
Features Grade
Helix flute Employs tough TF15 micro-grain
cemented carbide and highly
Achieves high tool rigidity and good wear resistant VP coating.
chip discharge due to a small helix
angle and a unique flute shape. Suitable for hardened steel
Cutting edge Tempered steel with a
Rockwell's hardness up to
The same tough straight 60 HRC can be machined.
cutting edge is used as in (HSS Steel can be drilled!)
previous drill series.
X Thinning
The X thinning
enables easy initial
cutting,which leads to
high accuracy machining.
Three relief faces
Enables easy re-grinding due to the three rake cutting edge geometry.
Cutting Performance DRILLING VCHSM DRILLS
a Cutting resistance Workpiece : X100CrMoV5 1 (60HRC) Cutting speed : 10m/min Depth of cut : l/d=3(through hole) Coolant : Water soluble emulsion(10%)
Power consumption Torque Thrust
2 20 3
2.5 fr=0.20mm/rev
Power consumption (kW) 1.5 ffrfrr===000...011f5r05=mmm0.mmm20///rmrreeemvvv /rev Torque (N·m) 15 fffrrr===000...101f55r0=mmm0mm.m2/0//rrrmeeevvmv /rev Thrust (kN)
1 10 2 ffrr==00..1105mmmm//rreevv
1.5 fr=0.05mm/rev
0.5 5
1
0.5
0 0 0 FEATURES
0 5 10 15 0 5 10 15 0 5 10
Drill diameter (mm) Drill diameter (mm) Drill diameter (mm)
a Cutting accuracy 15
Tool : VCHSMD1000 Workpiece : X100CrMoV5 1(60HRC) Depth of cut : l/d=3(through hole) Coolant : Water soluble emulsion(10%)
Over size Surface roughness Ry (µm) Surface roughness Out of roundness (µm) Out of roundness
0 10 16
14 fr=0.05mm/rev
-5 fr=0.05mm/rev fr=0.05mm/rev 12 fr=0.10mm/rev
fr=0.10mm/rev 8
-10 fr=0.10mm/rev
Over size (µm) -15 6 10
8
-20 4 6
-25 2 4
-30 2
-35 0 10 15 20 0 10 15 20
5 5 5
10 15 20
Cutting speed (m/min) Cutting speed (m/min) Cutting speed (m/min)
0.40
Frank wear VB (mm) Competitor A Competitor B Tool : VCHSMD1000
0.30 Workpiece : X100CrMoV5 1 (60HRC)
0.20 VCHSM Cutting speed : 10m/min
Feed : 0.05mm/rev
0.10 Hole depth : 30mm (l/d=3) Blind hole
Coolant : Water soluble emulsion (10%)
0.00 20 40 60 80 100 120 140 160 180 200
0
Number of holes info@mitsubishitools.ru
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