A material that takes durability to new frontiers GRANMET SF(Speed Fine)
Characteristic
- New material with excellent temperature resistance (Hot-hardness) and wear resistance
- Tremendous improvement against crater-wear
- High efficiency machining, equivalent to carbide hob at cutting Speeds of 300 m/min or more.
![](/-/media/www-nidec-com/machine-tool/knowledge/column/cutting-tool/hob-09/en_20181031-01-01.png)
Example Cutting speed 400m/min hobbing
【Work spec】
- module 2.25
- NT 46
- PA 17.5°
- HA 23°
- 15CrMo4
【Hob spec】
- 3-starts 16-gashes
- Material : GRANMET SF、MACH11
- Coating: Super Dry Ⅲ
【Cutting condition】
- Cutting speed 400m/min
- Ax feed 1.7mm/rev
- Dry/No shift 40pcs.
Tremendous improvement against crater-wear
- Tool Life 4 times
- Wear 30% Down
![](/-/media/www-nidec-com/machine-tool/knowledge/column/cutting-tool/hob-09/en_20181031-01-02.png)