Page 50 - Tungaloy Catalog

Basic Chipbreakers Negative Inserts

Cast Iron

Chipbreaker System for Turning (Negative Inserts)

2 .315 T5105
.276 T5105 T5115
T5115 CH T5125
.236
TAC Inserts Depth of cut: ap (in) .197 T-CBN CF T5105
BX930
BX950
.157
.118
.079
T5125
.039 CM T5115

0 .004 .008 .012 .016 .020 .024 .028 .031
Feed: f ipr

Grey cast irons Ductile cast irons High speed cutting: for grey cast irons
1970 1970
T5105
1640 T5115 1640 4920
Cutting speed: Vc (SFM) 980 T5125 Cutting speed: Vc (SFM) 980 T5105 T5125 Cutting speed: Vc (SFM) 3300 BX930 FX105
1300
1300
BX950
T5115
650
650
1640
330

0 .008 .016 .024 .031 330 0 .008 .016 .024 .031 0 .008 .016 .024 .031
Feed: f ipr Feed: f ipr Feed: f ipr

Chip- Appearance Features Chip- Appearance Features
breaker breaker
T-CBN inserts. First choice chipbreaker for cast iron.
No Performs well in high speed finishing An all round chipbreaker, which is applicable
chip- for a wide range of cutting conditions from
breaker of cast iron. CM continuous to interrupted machining with the
(T-CBN) positive land and wide chip pocket
Chipbreaker with reinforced cutting-edge for
Low cutting force chipbreaker for cast iron. cast iron.
Combined with an arc-shaped concave and Utilizing the land support and negative land
CF a high rake (substantially 20° rake angle), CH design, features stable insert seating and high
allows drastically reducing cutting forces
and suppressing the deformation of thin cutting edge strength even in heavy cutting.
walled components and burr occurrence.
Standard Cutting Conditions

Chip- Depth of cut Feed Cutting speed vc (SFM)
Operation Work condition Grade
breaker ap (in) f ipr Grey Cast Irons Ductile Cast Irons
Continuous ~ NONE BX930 .002 - .008 980 - 3940 330 - 1640
Light interrupted (T-CBN) BX950 .002 -.020 .002 - .012 980 - 3280 330 - 980
Precision finishing
NONE
Continuous FX105 .002 - .120 .002 - .024 980 - 3280 -
(CERAMIC)
Finishing Continuous ~ Light CF T5105 .020 - .080 .002 - .016 590 - 1580 590 - 1310
T5115
interrupted
460 - 1310
460 - 1210
Continuous T5105 590 - 1580 590 -1310
Medium cutting Light interrupted CM T5115 .040 - .160 .008 - .016 460 - 1310 460 - 1210
Interrupted T5125 400 - 980 400 - 820
Medium to Continuous T5105 590 - 1580 590 -1310
heavy Light interrupted CH T5115 .120 - .240 .004 - .024 460 - 1310 460 - 1210
cutting Interrupted T5125 400 - 980 400 - 820
Grey cast irons: Class 25 - 40 etc.
Ductile cast irons: Class 65 - 45 - 12 etc.
2–10 Grades Relating
pages
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