Mitsubishi VBMT110304-MV US735 | Stainless Steel Turning Insert
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VBMT110304-MV US735
Mitsubishi Materials | The Tough Stainless Steel Profiling Expert
Superior Toughness for Interrupted & Gummy Cuts
The Mitsubishi VBMT110304-MV US735 is a 35° diamond PVD coated carbide insert specifically developed for machining Stainless Steel (M-class). The US735 grade features high fracture toughness and a smooth coating layer to combat thermal cracking and Built-Up Edge (BUE). Equipped with the MV (Medium-V) chipbreaker and a 0.4mm corner radius, this long-tail stainless turning insert provides reliable performance in semi-finishing applications and difficult-to-cut alloys.
US735 PVD Grade | MV Versatile Breaker | Optimized for Stainless (M Group)
Technical Code Identification
35° Diamond
5° Relief Angle
M-Class Tolerance
Countersink Hole
11mm Edge
3.18mm Thick
0.4mm Radius
Breaker/Grade
ISO (Metric) vs ANSI (Inch) Comparison
| Feature Spec | ISO (Metric) | ANSI (Inch Equivalent) |
|---|---|---|
| Model Number | VBMT110304-MV | VBMT 221-MV |
| Inscribed Circle (IC) | 6.35 mm | 0.250" (1/4") |
| Corner Radius | 0.4 mm | 0.0157" (1/64") |
US735 Tough PVD Coating
The US735 grade is Mitsubishi's premier solution for stainless steel machining. This PVD coated grade is specifically designed for toughness to prevent edge chipping during interrupted cuts. It features a high resistance to plastic deformation, making it the best long-tail insert for tough austenite stainless steels (304, 316) that tend to work-harden quickly.
MV Chipbreaker Performance
The MV (Medium-V) chipbreaker is an all-rounder. For gummy materials like stainless steel, chip control is the biggest challenge. The MV geometry creates a stable "chip-breaking pocket" that prevents long stringy chips from scratching the surface finish or wrapping around the spindle during CNC profiling.
Recommended Cutting Parameters
| Material Group | Speed ($v_c$) | Feed ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Austenitic Stainless (304/316) | 60 - 140 m/min | 0.08 - 0.20 mm/rev | 0.5 - 2.5 mm |
| Duplex Stainless Steel | 40 - 90 m/min | 0.08 - 0.15 mm/rev | 0.5 - 2.0 mm |
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