MiniV-LockGroove – shaft – SH7025
IMPROVE TOOL LIFE
In parting-off of S45C shafts using a CNC lathe, the previous tool experienced premature chipping and unstable tool life, especially under low frequency vibration conditions for chip evacuation.
By switching to Tungaloy’s MiniV-LockGroove system with SH7025 grade inserts—featuring a highly secure V-shaped insert pocket and a coating optimized for wear and fracture resistance—stable machining was achieved with consistently superior surface quality.
As a result, tool life was doubled, with the number of parts machined per edge increasing from 250 to 500 compared to the conventional solution.
Share
| Industry | Engineering |
|---|---|
| Component | Shaft |
| Material ISO code |
 P - Steel |
| Work material | S 45 C |
| Machine(spindle type) | CNC Lathe |
| Tool family | Grooving |
| Tool category | Parting off |
| Product name | MiniV-LockGroove |
| TSR No. | 121113G |
Tool
| Tungaloy | Competitor | |
|---|---|---|
| Holder | STCL1616X18 | 16x16 shank |
| Insert | TCP18L200F-010-35 | 3 corner insert |
| Edges par insert | 2 | 3 |
| Cutting width | 2 | 2 |
| Grade | SH7025 | PVD |
Tool life
| Tungaloy | Competitor | |
|---|---|---|
| Tool life (pcs/edge) | 500 | 250 |
Cutting conditions
| Tungaloy | Competitor | |
|---|---|---|
| Cutting speed V/c (m/min) | 53 | 53 |
| Feed f (mm/rev) | 0.01 | 0.01 |
| Depth (mm) | 2.1 | 2.1 |
| Coolant | External | External |