Mitsubishi GPMT140408-U2 VP15TF Carbide Insert | Genuine MMC Japan
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GPMT140408-U2 VP15TF
Mitsubishi Materials | High-Performance Copying & Turning Insert
The Mitsubishi GPMT140408-U2 VP15TF is a heavy-duty parallelogram turning insert engineered for precision copying, profiling, and general turning. Powered by Mitsubishi’s legendary Miracle Coating (PVD), the VP15TF grade is the industry benchmark for machining stainless steel and high-temperature alloys. The larger 14mm size and 0.8mm corner radius provide excellent edge strength for medium-range cutting operations.
Technical Specifications
| ISO Code (Metric) | GPMT140408-U2 |
|---|---|
| ANSI Code (Inch) | GPMT 432-U2 |
| Material Grade | VP15TF (PVD Miracle Coating) |
| Corner Radius | 0.8 mm (1/32") |
| Chipbreaker Profile | U2 (Medium Copying) |
VP15TF Miracle Grade
The VP15TF grade combines a high-toughness carbide substrate with a high-adhesion PVD coating. This "Miracle" technology effectively prevents built-up edge (BUE) and notch wear, making it extremely reliable for medium-speed machining of carbon steel, stainless steel, and difficult-to-cut materials.
U2 Chipbreaker Logic
Designed for medium-range copying, the U2 chipbreaker features a specialized rake angle. It provides stable chip control even at fluctuating depths of cut, which is essential for complex CNC profiling where consistent chip evacuation prevents surface damage.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Feed Rate ($f$) |
|---|---|---|
| Stainless Steel (304/316) | 90 - 170 m/min | 0.12 - 0.30 mm/rev |
| Carbon & Alloy Steel | 110 - 210 m/min | 0.15 - 0.35 mm/rev |
INDUSTRIAL COMPATIBILITY
This GPMT 14-size insert is standard for SRGCR/L and HRGCR/L tool holders.
VIEW COMPATIBLE TOOL HOLDERS →Metric (ISO) vs. Inch (ANSI) Comparison
| Dimension | ISO: GPMT140408 | ANSI: GPMT 432 |
|---|---|---|
| Inscribed Circle (IC) | 12.7 mm | 1/2" |
| Thickness (S) | 4.76 mm | 3/16" |
| Corner Radius (RE) | 0.8 mm | 1/32" |