Mitsubishi DCMT070208-MV US735 Carbide Turning Insert for Stainless Steel
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DCMT070208-MV US735
High-Strength Finishing | US735 CVD Grade | MV Versatile Chipbreaker
Built for Rigidity and Reliability
US735 Grade (CVD Toughness): The US735 is a CVD coated carbide grade specifically designed to handle the high thermal and mechanical shock of Stainless Steel machining. Its unique substrate and coating combination prevents notch wear and thermal cracking, making it the most reliable grade for interrupted cuts and unstable setups.
MV Chipbreaker (Stable Medium-Finishing): The MV (Medium-V) geometry is designed for versatility. It creates lower cutting forces than roughing breakers while providing significantly better chip control than fine finishers. It excels at breaking "bird-nest" chips in gummy materials like 304 and 316 stainless.
0.8mm Radius (Impact Resistance): The "08" (1/32") radius provides a robust cutting edge. It is less prone to chipping than smaller radii and allows for higher feed rates, making it perfect for semi-finishing or finishing where the material has a rough surface skin.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DCMT070208-MV | 6.35 mm | 2.38 mm | 0.80 mm |
| Imperial | DCMT21.52-MV | 1/4" | 3/32" | 0.0315" (1/32") |
Recommended Machining Parameters
*US735 is optimized for toughness. Use flood coolant to maximize tool life and improve surface finish.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Stainless (304/316) | 80 - 160 m/min | 0.10 - 0.25 mm/r | 0.40 - 2.00 mm |
| Heat Resistant Alloys | 30 - 80 m/min | 0.08 - 0.20 mm/r | 0.30 - 1.50 mm |
Compatible Tool Holders
Rigidity is key for 07-series SDJCR/L or SDUCR/L holders:
Shop SDJCR 07 HoldersPro-Tip: US735 vs. VP15TF
US735 (CVD Carbide): Use this when your priority is impact resistance. It is the best choice for large diameters, interrupted cuts, or when the machine lacks high rigidity.
VP15TF (PVD Carbide): Switch to VP15TF for finishing small parts at high speeds where a sharper edge is required to prevent "pushing" the workpiece.
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