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Material: S136 52HRC Cutting time: 21 hours and 30 minutes (except roughing) F4B02 / F4R04, F4 series small diameter end mills can guarantee the surface finish of the workpiece even if the high hardness material is processed for a long time. |
Using tools：
F4B02 SERIES
R0.5×4 
●Advanced coating suitable for processing high-hard materials
●R contour tolerance ±3μm for ultra-precision machining
● Mirror blade design for excellent surface finish
●The hardness of the material to be processed can reach HRc72°
● Each knife has a unique identification: the actual blade diameter (optional)
●Advanced coating suitable for processing high-hard materials
F4R04 SERIES
4*R0.2
●R angle tolerance ±3μm for ultra-precision machining
● Mirror blade design for excellent surface finish
●The hardness of the material to be processed can reach HRc72°
● Each knife has a unique identification: the actual blade diameter (optional)
Processing conditions：
Machine tool: exeron300; workpiece material: S136 (hrc52 °); cooling method: oil mist
| Tool type | Processing mode | Speed | Feed | Ap(MM) | Ae(MM) | Allowance（MM) | Processing time (MIN) |
| R0.5 | Parallel high school processing | 11000 | 1600 | 0.02 | 0.04 | 0.01 | 187 |
| R0.5 | Parallel high school processing | 11000 | 1600 | 0.02 | 0.04 | 0.01 | 187 |
| R0.5 | Parallel equal height finishing | 16000 | 1400 | 0.01 | 0.02 | 0 | 302 |
| R0.5 | Parallel equal height finishing | 16000 | 1400 | 0.01 | 0.02 | 0 | 302 |
| D4R0.2 | High school processing | 8500 | 2500 | 0.05 | 0.08 | 0.03 | 118 |
| D4R0.2 | Contour finishing | 10500 | 2000 | 0.03 | 0.04 | 0 | 196 |
Processing results：
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Figure 1: R0.5 processing effect diagram (The rhombic surface in the red box in the figure is processed by R0.5) |
Figure 2: D4R0.2 processing effect diagram (The a, b, c, and d marks in the figure are processed by D6R0.5) |
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Processing summary:
The workpiece is a 6-piece insert position map of the lamp mold, which has high requirements for the uniformity of the finished finish and precision.
R0.5 has a uniform and distinct rainbow light on the diamond and arc surfaces.
The sides (a, b, c, d) processed by D4R0.2 have uniform, fine particles and obvious reflection imaging.
Both F4 series knives meet the requirements of finish and precision.
