Основной каталог Kyocera 2021 - 2022 - страница 750

MagicDrill DRS Applicable inserts


Cutting conditions by application [Workpiece material: S50C]
Applications Plain surface Slant surface Half cylindrical Hole expansion Concave surface Cored hole Stacked plates

Shape of workpiece

Vc 80 80 Not Not 80 Not Not available
(m/min) recommended recommended recommended
DRS Concave surface
f Not Not 0.04 Not
0.08 0.04 recommended recommended Not available
(mm/rev) Continuous part recommended
0.08
Coolant (Internal) Yes Yes - - Yes - -
· In case of using external coolant system, chip evacuation will be bad. Therefore ap should be measured within 1.5 times (1.5 x DC) of drill diameter (DC).


DRS recommended cutting conditions (Coolant) DRS hole bottom shape (mm)
Recommended insert grades DC A B C
( Vc: m/min) 10.0 2.2 2.80 0.2
Workpiece material f (mm/rev)
MEGACOAT
10.3 2.3 2.85 0.2
PR1230 PR1210
10.5 2.3 2.95 0.2
K Low carbon steel
80~100
- 0.06 11.0 2.4 3.10 0.2
11.5 2.5 3.25 0.2
Carbon steel - 0.08~0.1
80~100 12.0 2.8 3.20 0.3
Alloy steel - 0.04~0.06 12.5 2.9 3.35 0.4
80
Drilling


Mold steel - 0.04~0.06 DC
80
Stainless steel
- 0.05~0.06
(Austenitic related) 70~80
Gray cast iron - 0.08~0.1
80~100 C
: 1st recommendation : 2nd recommendation

1. Apply a sufficient amount of coolant.
2. If cutting speed is decreased too much from above condition, chip evacuation performance will deteriorate. A B
If the feed rate is increased too much from above condition, inner edge chip evacuation will deteriorate.
If the feed rate is decreased too much from above condition, outer edge chip evacuation will deteriorate.
3. If chips are too long when low carbon steel drilling, increased the cutting speed to 120~150m/min.
If this does not solve the problem, try step feeding.
[How to step feeding] 1. Cut 1~2 mm 2. Return 0.1 mm 3. Repeat 1. and 2.


K80