Mitsubishi JDMT140520ZDSR-JM FH7020 Milling Insert | MMC Japan
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JDMT140520ZDSR-JM FH7020
Mitsubishi Materials | AJX Series Heavy-Duty Cast Iron Specialist
The Mitsubishi JDMT140520ZDSR-JM FH7020 is a heavy-duty high-feed milling insert specifically engineered for high-speed machining of Cast Iron (Gray & Ductile). Designed for the AJX14 series cutters, this insert leverages the FH7020 PVD coated grade to provide superior abrasion resistance in brittle and abrasive materials. The JM chipbreaker (General Machining) offers a strengthened cutting edge, ensuring stable metal removal even at aggressive feed rates common in high-efficiency CNC milling.
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 | FH7020 (PVD Coated Cast Iron Specialist) |
FH7020 Grade Efficiency
The FH7020 grade is a specialized PVD-coated carbide optimized for flank wear resistance. In cast iron milling, the abrasive nature of the material often leads to rapid tool wear; FH7020 uses a hard, heat-resistant layer to maintain edge sharpness, reducing machine downtime and improving surface finish consistency.
JM Chipbreaker Advantage
The JM (General Machining) geometry features a reinforced cutting edge. This design prevents chipping during the heavy impact of high-feed milling. It effectively thins the chip for smoother evacuation, reducing the thermal load transferred to the tool and workpiece.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Feed Per Tooth ($f_z$) |
|---|---|---|
| Gray Cast Iron (FC300) | 160 - 320 m/min | 1.2 - 3.0 mm/t |
| Ductile Cast Iron (FCD) | 130 - 240 m/min | 1.0 - 2.5 mm/t |
AJX14 SYSTEM COMPATIBILITY
This insert is designed for AJX 14 Type high-feed face mills and indexable end 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" |