TungMeister – Motor Shaft – AH725
IMPROVED PRODUCTIVITY
The high-speed steel (HSS) center drill currently used for center drilling of motor shafts, a type of automotive part, has been resulting in slow machining times.
For a newly launched motor shaft, TungMeister was proposed and tested.
By increasing the cutting speed and feed rate, a 4.7 times improvement in machining efficiency was achieved, successfully addressing the challenge of reducing machining time.
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| Industry | Automotive |
|---|---|
| Component | Motor Shaft |
| Material ISO code |
 P - Steel |
| Work material | SCr420 |
| Machine(spindle type) | CNC Lathe |
| Tool family | Milling |
| Tool category | Drilling |
| Product name | TungMeister |
| TSR No. | 5103M |
Tool
| Tungaloy | Competitor | |
|---|---|---|
| Body | VSSD12L090S08-S | |
| Effective number of teeth | 2 | 2 |
| Cutting diameter | 5.13 | 6 |
| Insert | VDP513L07.2A30-02S08 | Solid center drill |
| Number of cutting edges | 1 | 1 |
| Grade | AH725 | Uncoated HSS |
Cutting conditions
| Tungaloy | Competitor | |
|---|---|---|
| Cutting speed V/c (m/min) | 40 | 15 |
| Feed f (mm/rev) | 0.15 | 0.1 |
| Feed speed Vf (mm/min) | 372 | 80 |
| Hole depth (mm) | 7.2 | 7.2 |
| Coolant | Wet(External) | Wet(External) |