Page 62 - Tungaloy Catalog

Basic Chipbreakers Positive Inserts

Cast Iron

Chipbreaker System for Turning (Positive Inserts)

2 .315
.276 BX930
.236
TAC Inserts Depth of cut: ap (in) .197 T-CBN BX950 CM T5115 T5115

.157
.118
.079
.039 No chipbreaker
0 .004 .008 .012 .016 .020 .024 .028 .031
Feed: f ipr

Grey cast irons Ductile cast irons

1970
BX930
3300 1640 BX930
Cutting speed: Vc (SFM) 1640 BX950 Cutting speed: Vc (SFM) 980 T5115
1300

650
T5115

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

Chipbreaker Appearance Features Chipbreaker Appearance Features
T-CBN inserts. All round chipbreaker for general purpose
No Performs well in high speed finishing of cutting, provides low cutting forces and
chip- cast iron. excellent performance in finishing to
breaker CM medium cutting.
(T-CBN)
Can cover a wide range of applications
No from finishing to roughing of cast irons.
chip- Excels in cutting edge strength.
breaker

Standard Cutting ConditionsStandard Cutting Conditions
Work Chip- Depth of cut Feed Cutting speed vc (SFM)
Operation Grade
condition breaker ap (in) f ipr Grey cast irons Ductile cast irons
Precision Continuous No chipbreaker BX930 .002 -.020 .002 -.008 980 -1200 330-1640
finishing Light interrupted (T-CBN) BX950 980 -2630 330-980
Continuous 500 -450 330-980
Finishing Light interrupted CM T5115 .002 -.079 .002 -.012 330 -980 330-820
Heavy interrupted 330 -650 330-650
Continuous 500 -450 330-980
Medium No
cutting Light interrupted chip T5115 .002 -.079 .002 -.012 330 -980 330-820
Heavy interrupted breaker 330 -650 330-650
Grey cast irons: Class 25 - 40 etc.
Ductile cast irons: Class 65 - 45 - 12 etc.

2–22 Grades Relating
pages
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