Mitsubishi TNMG220408-MA UE6020 | Heavy-Duty Steel Turning Insert
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TNMG220408-MA UE6020
Mitsubishi Materials | Heavy-Duty General Purpose Steel Turning
The Mitsubishi TNMG220408-MA UE6020 is a large-format CVD coated carbide insert engineered for high-efficiency turning of carbon and alloy steels. Utilizing the UE6020 grade, this insert provides an industry-leading balance of wear resistance and fracture toughness. As a critical long-tail industrial tool for large CNC lathes, the MA chipbreaker ensures smooth medium cutting and reliable chip control even on abrasive steel surfaces.
P-Class Steel Specialist | Size 22 Robustness | CVD Coated
Technical Code Identification
Triangular Shape
0° Relief Angle
M-Class Tolerance
Cylindrical Hole
22mm Edge Length
4.76mm Thickness
0.8mm Radius
Medium Breaker
Metric (ISO) vs Inch (ANSI) Reference
| Feature | ISO (Metric) Model | ANSI (Inch) Equivalent |
|---|---|---|
| Model ID | TNMG220408-MA | TNMG 432 MA |
| Inscribed Circle (IC) | 12.7 mm | 0.500" |
| Nose Radius (RE) | 0.8 mm | 0.031" |
UE6020 Grade Technology
The UE6020 grade is Mitsubishi's premier solution for general-purpose steel turning. This CVD coated carbide features a unique layer structure that resists cratering and flank wear, making it an excellent indexable turning insert for P25-P35 material groups.
MA Chipbreaker Geometry
The MA chipbreaker is designed specifically for medium cutting operations. It strikes a balance between edge sharpness and strength, preventing the "nesting" of chips. This ensures high-productivity CNC machining on both carbon and alloy steel parts.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Feed per Rev ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Carbon Steel (S45C) | 150 - 300 m/min | 0.15 - 0.45 mm/rev | 1.0 - 5.0 mm |
| Alloy Steel (SCM440) | 120 - 250 m/min | 0.15 - 0.40 mm/rev | 1.0 - 4.5 mm |
MATCHING TOOL HOLDERS
Perfectly paired with MTJNR/L or WTJNR/L tool holders (Size 22).
View Size 22 Holders →