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Boring Bars
Boring Tool Series
General Features
Since being the first in 1976 to introduce indexable boring
bars, Sumitomo Electric has been continuously developing
a comprehensive range which includes the SEC-Small Hole
boring bar series, high rigidity boring head series, with either
steel / carbide shanks, and the latest anti-vibration mechanism
- SumiTurn X-Bar series coupled with a wide variety of insert
grades and chipbreakers, cover a whole range of process
requirements.
Features l Wide selection for various boring operations
l Minimum bore diameter from 5,5mm onwards
Boring Bars l New anti-vibration boring bars, SumiTurn X-Bar.
l High rigidity head-design for small boring bars
l Wide selection of grades and chipbreakers available for various processes and work materials
XXX
Series
Good Chip Evacuation Chatter Killer System
from new head design - Eliminates Vibration
Unique structure of X-Bar head
Evacuates Evacuates
long chips short chips
Strong cross Ribbed structure for Vibration
direction in cut
section to withstand maximum
The damper resists vibration
high cutting force rigidity
Application Guide l New negative type ”X Bar”
with high performance
l Carbide shank l Anti-Vibration Steel Shank double clamping system
Rigid shank Low cost solution for long precision bores - ATTENTION:
for long high eliminates chatter - improves productivity and Please keep this area free
8 – precision bores surface finish to get the effect of
Over hang length (L/d) 7– ”X Bar” chattering killer system
Min. over hang
6– length = 3,5 x d
5–
4 – (X-Bar for pos. inserts) (X-Bar for neg. inserts)
l Steel shank
3–
2–
1–
0 l l l l l l l l l
8 10 12 16 20 25 32 40 50
Shank size, d (mm)
E6 www.sumitomo-tools.ru
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