Mitsubishi SCMW09T308 UC5115 Carbide Insert | Genuine Cast Iron Specialist
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SCMW09T308 UC5115
Mitsubishi Materials | The Cast Iron Powerhouse
The Mitsubishi SCMW09T308 UC5115 is a specialized indexable turning insert engineered for high-efficiency machining of cast iron. Utilizing the advanced UC5115 CVD coating, this insert excels in both continuous and interrupted cuts. Unlike standard inserts, the SCMW flat-top design (non-chipbreaker) provides maximum edge strength, making it the primary choice for cast iron turning where abrasive wear and edge chipping are common challenges.
Packaging: Standard Box of 10 Inserts
ISO Designation Decoded
Square 90°
7° Relief
M-Class Tol.
Flat Top (No CB)
9.525mm Size
3.97mm Thick
0.8mm Radius
Technical Specifications
| Feature | Metric Designation | Inch (ANSI) Designation |
|---|---|---|
| Model Name | SCMW09T308 | SCMW 32.52 |
| Inscribed Circle ($IC$) | 9.525 mm | 3/8" |
| Thickness ($S$) | 3.97 mm | 5/32" |
| Nose Radius ($R_e$) | 0.8 mm | 1/32" |
UC5115 Grade Performance
The UC5115 grade is a dedicated cast iron specialist. It features a thick Alumina (Al2O3) CVD coating that acts as a thermal shield, allowing for extreme surface speeds. This coating protects the carbide from the high-abrasion caused by graphite flakes in gray cast iron and sand inclusions common in foundry castings, ensuring long tool life.
SCMW Flat-Top Design
The SCMW geometry is a flat-top (non-chipbreaker) design. Since cast iron produces short, segmented chips, a traditional chipbreaker is not required. By maintaining a solid cutting edge, the SCMW provides superior edge strength and vibration resistance, preventing the micro-chipping often seen with standard CNC lathe inserts.
Recommended Cutting Parameters
Optimized for Gray & Ductile Cast Iron
| Material Type | Cutting Speed ($v_c$) | Feed Rate ($f$) | Depth of Cut ($a_p$) |
|---|---|---|---|
| Gray Cast Iron (FC250/300) | 180 - 450 m/min | 0.15 - 0.45 mm/rev | 0.5 - 3.5 mm |
| Ductile Cast Iron (FCD) | 130 - 320 m/min | 0.12 - 0.40 mm/rev | 0.5 - 3.0 mm |
TOOL HOLDER COMPATIBILITY
Compatible with Mitsubishi SSDCN external holders or SSBCR/L boring bars for internal machining operations.
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