DiOS
INTRODUCTION OF "DiOS"
Realizing long-life thread dies
The secret lies in the principle
of form rolling.
Patented technology based on Sanmei Works’ original form
rolling reduces the load applied on the dies’ forming section.
This technology suppresses die chipping.
Do you want to extend the life of your dies? Sanmei Works started by reviewing the die shape rather than relying on traditional knowledge. We found the answer in the form rolling technology that we cultivated. The die forming section was designed with a two-step thread shape (patented technology*), to disperse and reduce the load applied onto the die. This design was combined with the Dios material technology to further extend the life of the die.
* PATENT No. 5979806
Reducing the die replacement frequency and efficiently operating the rolling machine contribute to realizing carbon neutralization while maintaining high productivity.
Contributing to customer’s SDGs initiatives [dies]
Comparison of spent die weight
THI-12AL
| M12×1.25 | Thread length 22mm |
| Workpiece material | SCM435 |
| Hardness class | 12.9 (38 - 43) |
| Dise size | 370/350×38×30H |
| Production speed | 20RPM |
| Production piece | 9,600 (pc.) (8h/day) |
Weight of 1 die set 6.5kg×203set
Approx. 1,299kg reduction per machine over one year
THI-12R
| M12×1.25 | Thread length 40mm |
| Workpiece material | SCM435 |
| Hardness class | 10.9 (32 - 38) |
| Dise size | 220/200×40×50H |
| Production speed | 80RPM |
| Production piece | 38,400 (pc.) (8h/day) |
Weight of 1 die set 6.5kg×338set
Approx. 2,197kg reduction per machine over one year
THI-10Revo
| M12×1.25 | Thread length 30mm |
| Workpiece material | SUS (XM-7) |
| Hardness class | 10.9 (32 - 38) |
| Dise size | 170/150×40×51H |
| Production speed | 130RPM |
| Production piece | 62,400 (pc.) (8h/day) |
Weight of 1 die set 5.1kg×196set
Approx. 1,000kg reduction per machine over one year
FEATURES01
Original high-hardness special steel optimized for rolling dies
- The fine carbides have higher toughness and better fatigue properties than high-speed steel.
- The effect of vanadium carbide provides excellent baking resistance and is also suitable for rolling stainless steel bolts.
FEATURES02
Optimal design based on stress analysis
FEATURES03
Special surface treatment considering compatibility with the base material
FEATURES04
The two-step thread shape of the forming section disperses and reduces the load on the die!
FEATURES05
Leveling the load
Comparison of die lives
| Workpiece size | M12×1.25 (Thread length 22mm) |
|---|---|
| Workpiece material | SCM435 |
| Hardness class | 12.9 (HRC38 - 43) |
| Dise size | 370/350×38×30H |
| Workpiece size | M12×1.25 (Thread length 40mm) |
|---|---|
| Workpiece material | SCM435 |
| Hardness class | 10.9 (HRC32 - 39) |
| Dise size | 220/200×40×50H |
