Каталог Sumitomo пластины с кубическим нитридом бора Sumiboron - страница 103

SUMIBORON
Small Hole
Boring Bars BNBX Type
● Newly developed high rigidity slit-clamping system,
BNBX excellent for small hole boring
• Maximum overhang of L/D=5 possible.
Boring & Facing
• Minimal bar deformation produces excellent boring accuracy.
• Minimal vibration produces superior surface finish.
• Easy bar indexing without sleeve removal.
● BN2000 for hardened steel and BN7000 for sintered
alloy are available
■ Brazed Boring Bars Dimensions (mm)
Min. Dia. Diameter Height Length Nose radius Applicable
Stock
Cat. No.
BN2000 BN7000 BN700 DMIN DCON H LF RE Sleeves
BNBX 020R D D F 2.5 2.0 1.8 40 0.2 HBX 2016
025R D D F 3.0 2.5 2.2 40 0.2 HBX 2516
DMIN Min Bore Dia 030R D D F 3.5 3.0 2.7 40 0.2 HBX 3016
3° DCON
035R D D F 4.0 3.5 3.2 40 0.2 HBX 3516
040R D D F 4.5 4.0 3.7 40 0.2 HBX 4016
H
RE
LF 045R D D F 5.0 4.5 4.2 40 0.2 HBX 4516
050R D D F 5.5 5.0 4.7 60 0.2 HBX 5016
055R D D F 6.0 5.5 5.2 60 0.2 HBX 5516
060R D D F 6.5 6.0 5.7 60 0.2 HBX 6016
BNBX 065R D 7.0 6.5 6.2 60 0.2 HBB 6516
070R D 7.5 7.0 6.7 80 0.2 HBB 716
075R D 8.0 7.5 7.2 80 0.2 HBB 7516
080R D 8.5 8.0 7.7 80 0.2 HBB 816
■ Adaptor Sleeves ■ Parts (For Sleeve)
BT06035T TRD TH
Diameter
Cat. No. Stock Applicable Bar
DCB
D
(For Torx
HBX 2016 2.0 BNBX 020R BT0404 holes)
ø16


DCB 2516 D 2.5 BNBX 025R Applicable
Screw Set Screws Wrenches
3016 D 3.0 BNBX 030R Sleeves
15 15
3516 D 3.5 BNBX 035R
100 1.5 HBX2SSS
4016 D 4.0 BNBX 040R
4516 D 4.5 BNBX 045R BFTX0409N BT06035T TRD15 HBX3SSS
HBX4SSS
5016 D 5.0 BNBX 050R 3.0
HBX5SSS
5516 D 5.5 BNBX 055R HBX6SSS
6016 D 6.0 BNBX 060R
Q Q BT0404 TH020 HBBSSSS
L
D
SUMIBORON


ø16 DCB
HBB 6516 6.5 BNBX 065R
716 D 7.0 BNBX 070R
15 7516 D 7.5 BNBX 075R
100
816 D 8.0 BNBX 080R
* BNBX bars can be use with HBB type sleeves, however, HBX type sleeves are recommended for bars below ø6mm.
■ Recommended Cutting Conditions ■ Important notes
Low speed may cause
(1) Shorten overhang as much as possible (Max. L/D=5).
More than
Spindle speed n chattering and chipping on the (2) Even minor workpiece run-out may affect tool life.
2,000min-1 cutting edge. (3) Select a boring bar with a diameter closest to the bore
diameter.
Excessive depth of cut may cause
Depth of cut ap 0.01 to 0.2mm larger tool deformation resulting in
(4) Although it is difficult to increase the rotational speed in
deterioration of bore accuracy. small diameter boring applications, higher speeds are
recommended whenever possible.
Feed rate f 0.01 to 0.1mm/rev ―

Recommended Tightening Torque (N·m) F mark : To be replaced by new item (Please confirm stock availability)
L103