YG-1 X5070, 2 Flute 30° Helix Stub Ball End mill, G8A38080, D=8 R4.0 L=100
| EDP No. | R | D1 | D2 | L1 | L3 | L2 | Mill Dia. Tolerance | Shank Dia.Tolerance | No. of Flute |
| G8A38080 | R4.0 | 8 | 8 | 8 | 16 | 100 | 0~-0.015 | h5 | 2 |
(Unit : mm)
Feature
▶ Designed to machine high hardened materials.
▶ Suitable for dry cutting, high speed cutting thanks to newly developed raw-material and new coating.
▶ Excellent workpiece finish.
▶ Designed for high precision milling operation.
▶ Higher wear -resistance.
High Feed End Mill Capabilities :
High speed roughing
High speed finishing... Mirror-like surface
▶ More number of flutes than the normal 2F ball E/M results in high-feed cutting. For X - Y wide cutting pitch, high effective cutting performs in short tool working time.
(Example of performance : for the material HRc 50~55)
| ITEM | SIZE | RPM | FEED | DEPTH OF CUT | |
| Z(mm) | X-Y(mm) | ||||
| HIGH FEED END MILL | 4F Ø10 X R2 | 5,400 | 11,000 | 0.2 | 3.0 |
| NORMAL BALL END MILL | 2F Ø10 X R5 | 7,500 | 2,500 | 0.2 | 0.5 |
▶ For cutting on slopes and corners, the remaining part to be cut is smaller than one that remains after working with normal ball End Mill. It saves the time and cost
▶ By using straight flute, the rigidity of corner radius is improved. And it's also possible to get less damage to end teeth and radius than normal radius End Mill.
Cutting Conditions
| ISO | VDI 3323 |
Material Description |
Composition / Structure / Heat Treatment | HB | HR | ◎ : Excellent ○ : Good |
| P | 1 | Non-alloy steel | About 0.15% C Annealed | 125 | ||
| 2 | About 0.45% C Annealed | 190 | 13 | |||
| 3 | About 0.45% C Quenched & Tempered | 250 | 25 | |||
| 4 | About 0.75% C Annealed | 270 | 28 | |||
| 5 | About 0.75% C Quenched & Tempered | 300 | 32 | ○ | ||
| 6 | Low alloy steel | Annealed | 180 | 10 | ||
| 7 | Quenched & Tempered | 275 | 29 | |||
| 8 | Quenched & Tempered | 300 | 32 | ○ | ||
| 9 | Quenched & Tempered | 350 | 38 | ○ | ||
| 10 | High alloyed steel, and tool steel |
Annealed | 200 | 15 | ||
| 11 | Quenched & Tempered | 325 | 35 | ○ | ||
| M | 12 | Stainless steel | Ferritic / Martensitic Annealed | 200 | 15 | |
| 13 | Martensitic Quenched & Tempered | 240 | 23 | |||
| 14 | Austenitic | 180 | 10 | |||
| K | 15 | Grey cast iron | Pearlitic / ferritic | 180 | 10 | |
| 16 | Pearlitic (Martensitic) | 260 | 26 | |||
| 17 | Nodular cast iron | Ferritic | 160 | 3 | ||
| 18 | Pearlitic | 250 | 25 | |||
| 19 | Malleable cast iron | Ferritic | 130 | |||
| 20 | Pearlitic | 230 | 21 | |||
| N | 21 | Aluminum wrought alloy |
Not Curable | 60 | ||
| 22 | Curable Hardened | 100 | ||||
| 23 | Aluminum-cast, alloyed |
≤ 12% Si, Not Curable | 75 | |||
| 24 | ≤ 12% Si, Curable Hardened | 90 | ||||
| 25 | > 12% Si, Not Curabl | 130 | ||||
| 26 | Copper and Copper Alloys (Bronze / Brass) |
Cutting Alloys, PB>1% | 110 | |||
| 27 | CuZn, CuSnZn (Brass) | 90 | ||||
| 28 | CuSn, lead-free copper and electrolytic copper | 100 | ||||
| 29 | Non Metallic Materials |
Duroplastic, Fiber Reinforced Plastic | ||||
| 30 | Rubber, Wood, etc. | |||||
| S | 31 | Heat Resistant Super Alloys |
Fe Based Annealed | 200 | 15 | |
| 32 | Fe Based Cured | 280 | 30 | |||
| 33 | Ni or Co Based Annealed | 250 | 25 | |||
| 34 | Ni or Co Based Cured | 350 | 38 | |||
| 35 | Ni or Co Based Cast | 320 | 34 | |||
| 36 | Titanium Alloys |
Pure Titanium | 400 Rm | |||
| 37 | Alpha + Beta Alloys Hardened | 10500 Rm | ||||
| H | 38 | Hardened steel | Hardened | 550 | 55 | ◎ |
| 39 | Hardened | 630 | 60 | ◎ | ||
| 40 | Chilled Cast Iron | Cast | 400 | 42 | ○ | |
| 41 | Hardened Cast Iron | Hardened | 550 | 55 | ◎ |
