2014-Полный каталог по сверлам EN
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Violet Series,
High Precision Drills for Counter Boring
VAPDSCB
y Features
Special point geometry for excellent chip breaking
Thinning geometry High precision flat surface
Unique thinning geometry is Can obtain the same level of
employed to offer excellent chip flatness (under 0.05mm) as that of
breaking. conventional counter boring tools.
Centre cutting edge
Ensures stable, high feed
machining.
Process consolidation for Ideal chip geometry
drilling of flat bottom holes
yCutting conditions
DRILLING VAPDSCB zDrilling xEnd milling VAPDSCB
Drill VAPDSCBD0800 ( &8)
Conventional cutting method Possible to machine 3xD hole depths Workpiece DIN Ck50
with continuous feed. Cutting speed 35m/min
Feed rate 280mm/min
* A dimple will be left in the centre.
Feed 0.20mm/rev
Pilot drilling None
Coolant W.S.O.
FEATURES Achieves high speed machining
The VAPDSCB delivers longer tool life than a carbide counter boring end mill.
Also gives longer tool life than standard HSS tools when high speed machining.
VAPDSCB (When machining 1900 holes)
4500 No damage yCutting conditions
4000 (3800 holes)
3500
Number of holes (piece) 3000 Stop machining Drill VAPDSCBD0800 (&8)
2500
due to large wear Stop machining Stop machining Workpiece DIN Ck50
(2711 holes) due to fracturing due to vibrations
(2400 holes)
(1900 holes) Competitor’s HSS end mill (When machining 1900 holes) Cutting speed 35m/min (for longer tool life)
45m/min (for higher efficiency)
2000 280mm/min (for longer tool life)
360mm/min (for higher efficiency)
Feed rate
1500 Feed rate Feed rate Feed rate Feed rate Feed 0.20mm/rev
1000 Pilot drilling None
280 360 360 50
500 Coolant W.S.O.
mm/min mm/min mm/min mm/min
0
For longer tool life For higher efficiency Competitor’s Competitor’s
VAPDSCB counterboring counterboring
carbide end mill HSS end mill
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