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NTK Cutting Tools

AM3 Chipbreaker

For front turning operations ｜ Swiss CNC Lathes

Molded chipbreaker with a balance of cutting edge strength and chip control
Home / Front & Back Turning / AM3 Chipbreaker

Stable machining performance due to its toughness and sharp cutting edge

To support 24 hour continuous machining operations
AM3 chip control range
Features
  • Depth of cut ranges from 0.5 up to 2.0 mm .020 up to .080 inch
  • Excellent edge strength for stable machining
  • AM3 -WP wiper style insert guarantees improved cycle time and superior surface finishes
Tooling application
Swiss CNC Lathe front turning operations
Function range
Chipbreaker geometry​
① AM3 designed for a wide range of machining from medium to light depths of cut
② Sharp cutting edge for shearing material
Achieves excellent surface finishes even at high feed rates - wiper style insert (AM3-WP)
A. For conventional tools feed rate is reduced to maintain good surface finish which results in chip control issues.
B. If the feed rate is increased, the surface finish will deteriorate.
C. Inserts with a wiper help to maintain chip control and surface finishes even during high feed machining.

*when applying the DCGT… AM3-WP insert, use with our SDJC type holder (lead angle 93 degrees)
Lineup

CCGT-AM3 type insert

CCMT type insert

DCGT type insert with wiper

DCGT-AM3 type insert

VCGT-AM3 type insert

VPGT-AM3 type insert

- - - Scroll the table - - -
ISO Work material Grade vc (m/min) (SFM) ap (mm) (inch) f (mm/rev) (IPR)
Carbon steel
Alloy steel		 VM1 40 – 150 130 – 500 0.4 – 2.0 .016 – .080 0.05 – 0.2 .002 – .008
ZM3 40 – 90 130 – 300
Difficult-to-cut
Free-cutting stainless steel		 VM1 40 – 90 130 – 300 0.4 – 2.0 .016 – .080 0.05 – 0.2 .002 – .008
ZM3
Non-ferrous metal ZM3 40 – 180 130 – 600 0.4 – 2.0 .016 – .080 0.05 – 0.2 .002 – .008
Front turning
Material :
SUS440C
Cutting speed :
55 m/min 180 SFM
Feed :
0.04 mm/rev .002 IPR
DOC :
0.4 mm .016 inch
After running 900 parts, the competitor’s insert resulted in a dimensional change of 0.041mm .0016” while DM4 had better machining stability with parts showing dimensional change of only 0.02mm .0007” after the same amount of parts machined.
Front turning
Material :
SUS304 304SS
Cutting speed :
30 ～ 80 m/min 100 ～ 270 SFM
Feed :
0.015 mm/rev .001 IPR
Replacement :
0.15 mm .006 inch
DT4 TFD11FR05AM3
1,500 pcs / corner
Conventional tool
700 pcs / corner
The current tool resulted in a measured surface finish of Ry = 10.2μm with 500 parts machined and a 0.1mm .004” dimensional change from the start of production.
DT4 achieved dimensional consistency and machined 1000 parts all with surface finish of Ry 2.3 μm.
View more reports
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