Mitsubishi JDMT140520ZDSR-JM VP30RT Milling Insert | MMC Japan
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JDMT140520ZDSR-JM VP30RT
Mitsubishi Materials | AJX Series Toughened Heavy-Duty Milling
The Mitsubishi JDMT140520ZDSR-JM VP30RT is a robust high-feed milling insert specifically designed for the AJX14 series cutters. When your machining environment involves heavy interrupted cuts, scale, or unstable workholding, the VP30RT tough grade is the professional choice. It offers superior fracture resistance compared to standard grades, making it ideal for the roughing of Stainless Steel, Carbon Steel, and Heat-Resistant Alloys under the most challenging CNC milling conditions.
Technical Specifications
| ISO Designation (Metric) | JDMT140520ZDSR-JM |
|---|---|
| ANSI Designation (Inch) | JDMT 544ZDSR-JM |
| Insert Size | 14 (For AJX 14 Type Cutters) |
| Corner Radius (RE) | 2.0 mm (.0787") |
| Grade / Coating | VP30RT (Miracle PVD Toughness Optimized) |
VP30RT "Tough" Coating
The VP30RT grade is engineered with a high-toughness substrate and specialized PVD coating. This combination is designed to absorb mechanical shock, making it far more resistant to chipping and fracture during interrupted milling of stainless steels or when encountering raw casting skins.
JM Chipbreaker Strategy
The JM (General Machining) chipbreaker on this JDMT14 series insert provides a strengthened cutting edge. It is optimized for high-feed metal removal, effectively managing chip thinning and reducing the load on the machine spindle during high-velocity table feeds.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Feed Per Tooth ($f_z$) |
|---|---|---|
| Carbon Steel / Alloy Steel | 110 - 190 m/min | 1.2 - 2.8 mm/t |
| Stainless Steel (304/316) | 70 - 140 m/min | 1.0 - 2.2 mm/t |
AJX14 MILLING SYSTEM
Requires AJX 14 Type high-feed cutters (Face Mills or Shank Mills).
Shop AJX 14 Tool Holders →Metric vs. Inch Cross-Reference
| Feature | ISO: JDMT140520 | ANSI: JDMT 544 |
|---|---|---|
| Insert Length | 14.5 mm | .571" |
| Thickness | 5.56 mm | 7/32" |