Page 54 - Tungaloy Catalog

Basic Chipbreakers Negative Inserts

Superalloys and titanium

Chipbreaker System for Turning (Negative Inserts)

2 .315 BX950 AH905 AH120
.276
BX480
.236
TAC Inserts Depth of cut: ap (in) .197 T-CBN HMM SA KS20 TM
.157
.118
.079
.039 TH

0 .004 .008 .012 .016 .020 .024 .028 .031
Feed: f ipr
Titanium alloys Ni-base alloys

1300 1300

Cutting speed: Vc (SFM) 650 BX950 AH905 Cutting speed: Vc (SFM) 650 BX950 AH905
980
980

BX480
330
330

.024
.024
0 .008 .016 AH120 .031 0 .008 .016 AH120 .031
Feed: f ipr Feed: f ipr
Chipbreaker Appearance Features Chipbreaker Appearance Features
Low cutting force chipbreaker for super T-CBN inserts.
alloys. Combined with the narrow positive No Performs well in finishing of heat-resistant
chip-
HMM land and uneven dots on the rake face breaker or titanium alloys.
allows a small contact area for chips,
reducing cutting forces considerably. (T-CBN)
Light to medium D.O.C.’s affective in a This chipbreaker is designed to reduce
wide variety of high temp alloys. the contact-area between tool and
TM SA chip, preventing the insert from raising
temperature during cutting.

For high impact machining
TH

Standard Cutting Conditions
Chip- Depth of cut Feed Cutting speed vc (SFM)
Operation Work condition Grade
breaker ap (in) f ipr Titanium Alloys NI Base Alloys
NONE
Precision finishing Continuous ~ Light (T-CBN) BX950 .004 -.020 .002 - .008 330 - 660 230 - 980
interrupted
BX480
Continuous ~ Light 65 - 330 65 - 330
Finishing interrupted HMM AH905 .020 -.120 .004 - .012 65 - 260 65 - 160
Interrupted 35 -260 35 - 130
Continuous 100 - 260 65 - 160
Medium cutting Light interrupted SA .040 - .160 .008 - .016
Interrupted 35 - 200 35 - 130
Medium Continuous TM AH120 .004 - .125 .006 - .012 100 - 140 80 - 125

Heavy Interupted TH .050 - .160 .008 - .018 100 - 140 80 - 125
Ni-base alloys: INCONEL718 etc.
Titanium alloys: Ti-6Al-4V etc
2–14 Grades Relating
pages
(1-1)