TungTap ‐ Crank shaft – PB070
IMPROVED TOOL LIFE
Previously, a non-coated grade was used; however, during dry machining, built-up edge occurred, leading to frequent breakage. The general-purpose grade PB070 with a TiN coating suppressed both built-up edge and breakage, resulting in a threefold increase in tool life.
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| Industry | Automotive |
|---|---|
| Component | Crank Shaft |
| Material ISO code |
 P - Steel |
| Work material | S48C |
| Machine(spindle type) | Multi-Tasking Machine |
| Tool family | Holemaking |
| Tool category | Tapping |
| Product name | TungTap |
| TSR No. | 5400D |
Tool
| Tungaloy | Competitor | |
|---|---|---|
| Body | TS-MF12X1.25-DNCM PB070 | M12x1.25 tap |
| Grade | PB070 | Non-coated Powdered HSS |
Cutting conditions
| Tungaloy | Competitor | |
|---|---|---|
| Tool diameter DC (mm) | M12x1.25 | M12x1.25 |
| Pilot hole diameter (mm) | 10.8 | 10.8 |
| Hole depth H (mm) | 22 | 22 |
| Cutting speed V/c (m/min) | 8 | 8 |
| Feed f (mm/rev) | 1.25 | 1.25 |
| Feed speed Vf (mm/min) | 265 | 265 |
| Coolant | Dry | Dry |