DJ BORING ARBOR CUTTING DATA
Selection of Insert Tip for each material.
Material
Steel
100~300m/min. (Dry or Wet cutting)
Coated T A ℓ N
Stainless Steel
80~150m/min. (Wet cutting)
Cast Iron
150~250m/min. (Dry or Wet cutting)
Hardened Steel
CBN
60~120m/min. (Dry or Wet cutting)
MAX. L/D for CBN insert tip is 3 times.
Aluminium, Non-ferrous metal
K grade Carbide
300~500m/min. (Wet cutting)
Recommended Cutting Speed ◎… Best ○… Good －… Unsuitable
Hardened Steel
Insert
Inter- rupted Cutting
SS41
S55C
SCM SKD
SC FC,FCD SUS AL,ALC
Code No.
Grade
SCM SKD SUJ
○ 150 ～ 250
-
-
-
-
C
Coated
100 ～ 300 100 ～ 300 100 ～ 300 80 ～ 150
◎ 60 ～ 100 80 ～ 150
○ 40 ～ 80 80 ～ 150
○ 60 ～ 100 - - 100 ～ 300
○ 60 ～ 100
○ 80 ～ 120
○ 40 ～ 100
◎
-
-
-
-
-
E
P10
○ 300 ～ 500
-
-
-
-
-
- -
- -
- -
◎ ○
F
K10
- 60 ～ 130
- -
Cermet CBN
T B
80 ～ 150
80 ～ 150
100 ～ 300
100 ～ 300
80 ～ 150
-
-
-
-
-
60 ～ 120 -
60 ～ 100 -
60 ～ 120 -
200 ～ 500
-
Coated
C
100 ～ 300
100 ～ 300
80 ～ 150
80 ～ 150
80 ～ 150
100 ～ 300
150 ～ 250
★ Existing Inserts (Cermet,P grade Carbide & K grade Carbide) are available. ★ The cutting speed is recommended to be reduced to 50% for the interrupted cutting. Recommended Cutting Condition (removal,feed)
In case of CBN insert, reduce L/D as small as possible : MAX. 3 times.
Type
Best Condition
MAX. Condition
Boring Range
Stock removal on diameter. D < 32mm : less than 0.25mm D > 32mm : less than 0.3mm Feed per rev. depends on NoseR and accuracy required.
mm/ φ ～ 0.1
mm/ φ
mm/rev. 0.03 ～ 0.07 0.05 ～ 0.07 0.05 ～ 0.08 0.05 ～ 0.08 0.05 ～ 0.08 0.05 ～ 0.08
mm/rev.
DJ3 J10- 3 J10- 5 J10- 8 J10-18
DJ8
φ 3 ～ 8 φ 5 ～ 15 φ 8 ～ 18 φ 18 ～ 28 φ 28 ～ 39 φ 38 ～ 50
0.1 ～ 0.2 0.1 ～ 0.2 0.2 ～ 0.4 0.2 ～ 0.4 0.2 ～ 0.5
J16- 8 J16-18 J16-28 J16-38
1.0 1.5 2.0
0.1 0.15 0.15
(Feed per rev.) 2 8 × NoseR
Logical Surface Finish :
108
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