Page 616 - Yamawa_European_Catalogue_YEU23

Center Drills

Intro
AUPEQ

SP
Single-Ended Point Drills PE-90°, Coated

FEATURES
For positioning, chamfering hole, chamfering outer edge
SL and V slotting.
HSS COATING HSS and special coating for high speed machining and
excellent surface finishing.

PO
P1 P2 P3 P4 M1 M2 P7 N1 N2

Workpiece Soft Steels Carbon steels Alloy steels Thermal refined steels Stainless steels Aluminium alloy castings
Material St.44-2 - 1.0044 Ck50 - 1.1206 42CrMo4 - 1.7225 AISI304 - 1.4301 - X5XrNi18-9 G-AISi8Cu3 - A380
ST Vc (m/min) 38÷48 28÷38 26÷33 13÷17 13÷20 84÷120
Diameter RPM Feed RPM Feed RPM Feed RPM Feed RPM Feed RPM Feed
(mm) (mm/rev) (mm/rev) (mm/rev) (mm/rev) (mm/rev) (mm/rev)
3 4550 0.04÷0.08 3500 0.04÷0.08 3150 0.04÷0.08 1800 0.03÷0.06 1750 0.04÷0.08 10800 0.10÷0.22
4 3400 0.05÷0.10 2650 0.05÷0.10 2350 0.05÷0.10 1200 0.04÷0.08 1300 0.05÷0.10 8100 0.12÷0.26
ROLL
6 2300 0.06÷0.12 1750 0.06÷0.12 1550 0.06÷0.12 800 0.05÷0.10 900 0.06÷0.12 5400 0.15÷0.30
8 1700 0.08÷0.15 1300 0.08÷0.15 1150 0.08÷0.15 600 0.06÷0.12 650 0.08÷0.15 4050 0.18÷0.35
YMW-AUPEQ
10 1350 0.10÷0.18 1050 0.10÷0.18 950 0.10÷0.18 500 0.08÷0.15 500 0.10÷0.18 3250 0.21÷0.40
12 1150 0.12÷0.22 900 0.12÷0.22 800 0.12÷0.22 400 0.10÷0.18 450 0.12÷0.22 2700 0.25÷0.45
CARBIDE 16 850 0.16÷0.26 650 0.16÷0.26 600 0.16÷0.26 300 0.12÷0.22 350 0.16÷0.26 2050 0.32÷0.50
20 700 0.20÷0.35 500 0.20÷0.35 450 0.20÷0.35 250 0.16÷0.26 250 0.20÷0.35 1800 0.40÷0.60

Difference in clamping and overhang portion
LONG
DOUBLE-ENDED TYPE SINGLE-ENDED TYPE
Smaller flexibility The extended
in the overhang Minimum shank gives more Minimum
portion clamping portion overhang
HAND flexibility clamping portion
TAPS

EG (STI)

SPECIAL
THREADS, Process data Positioning accuracy on 15° slant surface
GAUGES
Size Ø12x90°
Workpiece material 42CrMo4 - 1.7225 AUPEQ
THREAD Comp. A
Part for process 15° slant surface
MILLS
Drilling speed 25m/min
Feed 0.15mm/rev
Lubricant Water soluble oil (x20)
Machine Machining center
DIES

CENTER
DRILLS
YMW

Technical
info

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