Mitsubishi TPMH090204-MV US735 | Stainless Steel Turning Insert
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TPMH090204-MV US735
Mitsubishi Materials | The Stainless Steel Specialist
Ultimate Toughness for Difficult Materials
The Mitsubishi TPMH090204-MV US735 is a high-performance PVD coated carbide insert engineered for excellence in stainless steel machining. The US735 grade features a high-toughness substrate that absorbs impact, making it the premier choice for interrupted cuts and gummy materials. Equipped with the MV chipbreaker, this long-tail precision insert excels at CNC boring and finishing by reducing cutting resistance and preventing work-hardening.
US735 PVD Toughness | MV Fine-Finish Geometry | ISO M25-M40 Performance
Technical Code Identification
Triangular Shape
11° Positive Relief
M-Class Tolerance
Countersink Hole
9mm Edge Length
2.38mm Thick
0.4mm Radius
Chipbreaker
ISO (Metric) vs ANSI (Inch) Comparison
| Feature Spec | ISO (Metric) | ANSI (Inch Equivalent) |
|---|---|---|
| Model Number | TPMH090204-MV | TPMH 1.81.51 MV |
| Inscribed Circle (IC) | 5.56 mm | 0.219" (7/32") |
| Thickness | 2.38 mm | 0.094" (3/32") |
The US735 PVD Advantage
US735 is Mitsubishi's specialized Physical Vapor Deposition (PVD) grade for stainless steel. It is designed with a high-toughness carbide substrate that prevents fracturing during heavy vibration or interrupted cuts. The PVD coating layer provides exceptional resistance to Built-Up Edge (BUE), which is the primary cause of poor surface finish in stainless machining.
MV "Multi-Value" Chipbreaker
The MV chipbreaker geometry is optimized for finishing and light-medium turning. Its sharp cutting edge reduces cutting forces, thereby minimizing the heat generated in the workpiece. In boring operations, it effectively fragments tough stainless chips into small, manageable curls that are easily evacuated from the hole.
Recommended Cutting Parameters
| Workpiece Material | Speed ($v_c$) | Feed ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Austenitic Stainless (304/316) | 80 - 160 m/min | 0.05 - 0.15 mm/rev | 0.2 - 1.5 mm |
| Martensitic Stainless (440C) | 100 - 180 m/min | 0.05 - 0.18 mm/rev | 0.2 - 1.5 mm |
COMPATIBLE HOLDERS
Designed for use with standard STFPR/L 09 or STGPR/L 09 boring bars.
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