Kyocera - Основной каталог 2011-2012 ENG
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Summary of Threading Inserts
KTKF J18
“Threading” is added to Small Tools special tool series.
Total toolholder length 120 mm series is now available (referred to
as JX in the part number).
For Threading
Threading
Applicable for various types of threading
Metric (M) Parallel Pipe [G (PF)]
Inserts and holder are compatible
Unified (UN) Tapered Pipe
[R (PT) (BSPT)]
Small Diameter Cut-Off Back Turning Threading
TKF TKFB TKFT
Threading Insert Features
Full Prole and Partial Prole
Shape Function Features
Partial Profile Full Profile Burr-free thread surface; high quality J
Smooth feeling
Wiper Edge
Leave the workpiece diameter slightly oversized
for full topping
Every pitch size requires a specific insert
Thread's corner tends to be sharp edged Threading
Thread's O.D. or I.D. needs to be finished to
the size before threading
One insert can machine various pitch sizes
Thread Precision
Type of Thread Strict Thread Precision Loose
4h (1st Class) 6g (2nd Class) 8g (3rd Class)
M External 5H (1st Class) 6H (2nd Class) 7H (3rd Class)
Unified Internal 2A
External 3A 2B 1A
Internal 3B 1B
Cutting Force
* Applicable precision with Full Profile Insert Chip Length
* Not recommended if strict thread precision is required.
With and Without Chipbreaker
Shape Condition
Without With Chipbreaker With Chipbreaker Chipbreaker When less cutting force Small
is needed for small or thin
part machining
-TS
1-Thread, When Better Chip Control Smaller
is needed
-M02
2-Thread, Fewer passes and less Large
machining time (2 Edges engage
For rigid workpiece
Wider dead space in threading)
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