NTK Cutting Tools

SX9

Excellent notch and flank wear resistance when roughing gray cast iron|Sialon ceramic

Ceramic grade with the best fracture resistance

Stable machining even in tough applications

Significantly improve productivity when replacing carbide tools with SX9
Features
  • The toughest ceramic grade
  • Excellent thermal shock and fracture resistance due to the needle-shaped particles formed during the ceramic manufacturing process
Tooling application

Gray cast iron with scale
Rough Turning / Milling /End milling

Grade characteristics
Gray cast iron roughing application
Gray cast iron ceramic End mill application
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Grade Material Operation type Machining Cutting speed (m/min) Cutting speed (SFM) Feed(mm/rev) Feed(IPR / IPT) DOC(mm) DOC(inch) Coolant
SX9 Gray cast iron Turning Roughing with scale, Rough to semi-finish machining 300 – 800 1000 – 2600 0.3 – 0.6 .012 – .024 -3.5 – .140 DRY
Milling 350 – 700 1200 – 2300 0.05 – 0.1 .002 – .004
Machine parts
Material :
Gray cast iron(FC400)
Workpiece condition :
with scale
Cutting speed :
650m/min (SX9) 2170 SFM (SX9)
80m/min (Competitor’s CVD coated carbide) 270 SFM (Competitor’s CVD coated carbide)
Feed :
0.15 mm/rev .0059 IPR
DOC :
2.0 mm .0789 inch
Coolant :
DRY
SX9
850 pcs / corner
Competitor’s CVD coated carbide
300 pcs / corner

SX9 achieved stable machining results in this interrupted turning operation.
By replacing the CVD coated carbide with ceramic there was a significant reduction in cutting tool costs and an increase in production.

Brake disc
Material :
Gray cast iron(FC250)
Workpiece condition :
with scale
Cutting speed :
450 m/min 1500 SFM
Feed :
0.40 mm/rev .0157 IPR
DOC :
2.0 mm .0787 inch
Coolant :
DRY
SX9
360 pcs / corner
Whisker ceramic
264 pcs / corner

SX9 machined at the same cutting conditions as the current whisker ceramic and resulted in a reduction in tooling cost for the customer.

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