Mitsubishi CPMH090308-MV US735 Stainless Steel Turning Insert (10pcs)
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CPMH090308-MV US735
Impact Strength Powerhouse | US735 CVD Toughness | MV Medium-Cut Control
Built for Maximum Stainless Productivity
US735 Grade (The Impact Guard): The US735 is a high-toughness CVD-coated carbide specifically developed for M-Class (Stainless Steel). It is the gold standard for handling interrupted cuts, scale, and unstable machining conditions. The coating provides a thermal barrier that resists the extreme heat of stainless machining while the ultra-tough substrate prevents sudden edge breakage.
MV Chipbreaker (The Versatile Wedge): The MV geometry features an 11-degree positive rake designed to reduce cutting forces. In gummy materials like 316 stainless, the MV breaker aggressively curls and snaps the chip, preventing the "long-string" entanglement that damages parts and tool holders.
0.8mm (1/32") High-Strength Radius: The 08 radius provides a significantly more robust edge than the 04 version. It allows for higher feed rates and deeper cuts, dissipating heat across a wider surface area to extend tool life during heavy semi-finishing.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CPMH090308-MV | 9.525 mm | 3.18 mm | 0.80 mm |
| Imperial | CPMH322-MV | 3/8" | 1/8" | 0.0315" (1/32") |
Stainless Steel Cutting Parameters
*The 0.8mm radius allows for higher feed rates. Always use high-pressure coolant to prevent built-up edge (BUE).
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Austenitic (304/316) | 80 - 160 m/min | 0.10 - 0.28 mm/r | 0.50 - 3.00 mm |
| High Strength (Duplex) | 50 - 110 m/min | 0.08 - 0.22 mm/r | 0.40 - 2.00 mm |
Compatible Tooling Systems
Maximum rigidity is recommended for roughing. Use with SCLC or SCPC series holders:
Shop 09 Series HoldersPro-Tip: US735 vs. US7020
US735 (The Heavy Rougher): Choose this for unstable setups, interrupted cuts, or heavy scale. It prioritize "Not Breaking" above all else.
US7020 (The Smooth Runner): Switch to US7020 for continuous, stable turning at higher speeds to achieve better surface finishes and flank wear resistance.
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