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NTK Cutting Tools

SX3

Roughing & semi-finishing heat-resistant alloys ｜ SiAlON ceramic

First recommendation for heat-resistant alloys machining
Home / HRSA - Grade / SX3

Covers wide range of machining: Roughing with scale to semi-finishing

High-speed turning and milling with stable performance
Features
  • Ceramic grade combining toughness and wear resistance
  • Machines wide range of conditions in materials from the commonly used heat resistant alloys like Inconel 718 to the newer generation of materials like Rene
  • Performs high efficiency milling
Tooling application
Finishing Heat-resistant alloys
Turning / Profiling / Milling: Roughing with scale to semi-finishing
Grade map
TURNING
↑High






SPEED
JP2,120
JX1,JX3
533,WA1
SX7 SX3 SX9
SX5
FINISH SEMI-FINISH  ROUGH
FEED

High→

MILLING
↑High



SPEED
SX7 SX3 SX9
SEMI-FINISH  SCALE
FEED

High→

Grade characteristics
Why are SiAlON ceramics so effective at high-speed machining of heat-resistant alloys?
Silicon nitride (Si3N4) is combined with Aluminum (Al) and oxygen (O) to make SiAlON.
Sialon has needle-shaped particles similar to that of Silicon nitride.
The arrangement of these particles makes the material withstand the impact force during cutting.
The addition of the alumina improves its heat-resistance characteristics.
The property advantages makes it perfect for machining Heat-resistant alloys.
Machining Inconel with scale
Milling Inconel
- - - Scroll the table - - -
ISO Work material Coolant Grade vc (m/min) (SFM) ap (mm) (inch) f (mm/rev) (IPR)
Heat-Resistant Super Alloy
Scale Turning		 WET SX3 180 – 270 600 – 900 1.0 – 5.0 .040 – .200 0.1 – 0.22 .004 – .010
Heat-Resistant Super Alloy
Rough Turning (Without Scale)		 WET 180 – 270 600 – 900 1.0 – 2.5 .040 – .100 0.15 – 0.3 .006 – .012
Heat-Resistant Super Alloy
Mid-Finish Turning		 WET 180 – 270 600 – 900 1.0 – 2.0 .040 – .080 0.12 – 0.25 .004 – .010
Heat-Resistant Super Alloy
Grooving		 WET 180 – 270 600 – 900 – 0.07 – 0.15 .003 – .006
Heat-Resistant Super Alloy
Rough Milling		 DRY 600 – 1200 2000 – 4000 1.0 – 2.5 .040 – .100 0.07 – 0.12 .003 – .004
Rene130 Roughing with scale
Material :
Rene130
Insert Shape :
SNGN190724
Cutting speed :
115 m/min 380 SFM
Feed :
0.15 mm/rev .0059 IPR
Coolant :
WET
SX3
10.0min
SX3 insert machined through the scale and inspection yielded no defects on insert edge.
Competitor’s SiAlON insert evaluation yielded visible breakdown of cutting edge after same machining operation.
Semi-finishing Rene 130
Material :
Rene130
Insert Shape :
RCGX120700
Cutting speed :
100 m/min 330 SFM
Feed :
0.25 mm/rev .0098 IPR
Coolant :
WET
SX3
10.0min
SX3 and SX9 both maintained good edge conditions after cuts while the competitor’s SiAlON insert exhibited signs of significant wear.
View more reports
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