FeaturesFFFFFFFFFFFFFFFFFFFF tttttttttttttttttttttttttttFeatures

DimensionsDimensions

Hitachi Global Forging Ball HGFB-TH

Flute tip shape

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Flute tip shapeprovides both rigidity and good cutting performance.pppppppppppppppppppppppppppppppppprrrrrrrrrrrrrrrrrrrrrrrrrrrrrroooooooooooooooooooooooooooooooovvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvviiiddddddddddddddddddddddddddddddeeeeeeeeeeeeeeeeeeeeeeeeeesssssssssssssssssssss bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbooooooooooooooooooooooooooooooootttttttttttttttttttttttttttthhhhhhhhhhhhhhhhhhhhhhhhhhhhh rrrrrrrrrrrrrrrrrrrrrrrrrriigggggggggggggggggggggggggggggiiddddddddddddddddddddddddddddddiittttttttttttttttttttttttttttttyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy bbbboooooooooooooooottttttttttthhhhhhh rrrrrrrrigssssssssssss bbbbbbbbbbbbbbbbbbbboooooooooooooth rigggggggggggggggggggggideeess bbbbbbbbbbbbbbbbbb i iddddddditttyyyyyyyyyyyyyyyyyyyddddeeeeeeeeessssss ditttyyyyyyyyyyyyyyy vvvvvvvvvvvvvvvvvid y oooovvvvvvvvvvvvvvvvvvvvvvi

ppppppeeeeeeeeeeerrrrrrrrrrrrrrrrrrrrrrffffffffffffffffffffffffffffffffooooooooooooooooooooooooooooooooorrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmaaaaaaaaaaaaaaaaaannnnnnnnnnnnnnnnnnnncccccccccccccccccccccccccccccccceeeeeeeeeeeeeeeeeeeeeeeeeeee.eeeerrrrrrrrrrrrrrrrrrfffffffffffoooooffffffffooooooooooooooooooooooooorrrrrrmmmmmmmaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaannnnnnnnnnnnnnnnnnnndddddddddddddddddddddddddddddddddd gggggggggggggggggggggggggggggoooooooooooooooooooooooooooooooooooooooooooooooooooooooooodddddddddddddddddddddddddddgooooooooooooooooooooooooooooogggggod gddddddddddddddddddddddddnnnnnddddddddddddddddddddddddaan oooooooooooooooooooooooooooooodd ppperrroooooooooooooooooooooooooooooooooooooooooooodddddddddddddddddddddddddd cccccccccccccccccccccccccccuuuuuuuuuuuuuuuuuuuuutttttttttttttttttttttttttttttttttttttttttttttttttttttttttttinnnnnnnnnnnnnnnnnnnnggggggggggggggggggggggggggggg ppppppppppppppppppppppppppppppppeeeeeeeeeeeeeeeeeeeeeeerrrooooooooooooooooooooooooooooooooood pperrprovides both rigidity and good cutting performance.

Item Code Stock CoatingMilldia.Dc

RFlutelengthR

Overalllength

L

Shankdia.Ds

Size (mm)

HGFB2020-THHGFB2030-THHGFB2040-THHGFB2060-THHGFB2080-THHGFB2100-THHGFB2120-TH

1 2 2 3 4 5 6

23468

1012

34.569

121518

50707090

100100110

66668

1012

No. offlutes

2222222

THTHTHTHTHTHTH

Type

AAABBBB

●●●●●●●●：Stocked Items.

Tolerance on shank：h5Tolerance on dia.： 　0－0.010

R accuracy：±0.01 Helix angle：30°

A type B type

R

10°

L

R R

φDc

φDs

RL

φDc

φDs

HGFB2 -TH

T H C o a t i n g

Enables longer life and higher efficient when cutting high-hardness materials. Exhibits amazing performance when cutting high-hardness materials (35HRC or higher). Double the tool life and more than 　double the machining efficiency. Cold-worked die steel, HSS, tool steel, composite materials, carbide alloys, etc.

Long life for both dry cutting and wet cutting.

Enables high-efficient machining with increased cutting depth and feed rate. Ideal for high-efficient machining from roughing to finishing of 35HRC or higher materials.

High HHeeaaatttttt RRRReeeesssistance

High RRiiggiiddiittttyyy Geoommeettrryy

Highh CCoosstt PPPPPeeerrrffformancee

Hitachi Global Forging Ball

37,700

3,620

17,300

1,560

27,500

2,810

14,300

1,030

22,400

2,280

12,200

730

13,200

1,110

7,100

340

n (min-1)

v f (mm/min)

n (min-1)

v f (mm/min)

n (min-1)

v f (mm/min)

n (min-1)

v f (mm/min)

n (min-1)

v f (mm/min)

n (min-1)

v f (mm/min)

n (min-1)

v f (mm/min)

n (min-1)

v f (mm/min)

ap=0.12Dcae=0.36Dc

ap=0.12Dcae=0.36Dc

ap=0.1Dcae=0.3Dc

ap=0.1Dcae=0.3Dc

28,300

3,620

13,000

1,560

20,600

2,800

10,700

1,030

16,800

2,280

9,200

740

9,900

1,110

5,300

340

22,800

3,650

10,500

1,580

16,700

2,840

8,600

1,030

13,600

2,310

7,400

740

8,000

1,120

4,300

340

19,200

3,690

8,800

1,580

14,000

2,860

7,300

1,050

11,400

2,330

6,200

740

6,800

1,140

3,600

350

14,700

3,760

6,800

1,630

10,700

2,910

5,600

1,080

8,800

2,390

4,800

770

5,200

1,160

2,800

360

11,800

3,780

5,400

1,620

8,600

2,920

4,500

1,080

7,000

2,380

3,800

760

4,100

1,150

2,200

350

9,800

3,650

4,500

1,570

7,200

2,850

3,700

1,030

5,800

2,300

3,200

740

3,400

1,110

1,900

350

R1.5×3 R2×4 R2.5×5 R3×6 R4×8 R5×10 R6×12

<Roughing>

ap=0.06Dcae=0.18Dc

ap=0.08Dcae=0.24Dc

ap=0.05Dcae=0.15Dc

ap=0.07Dcae=0.21Dc

27,500

3,890

17,000

2,620

26,400

3,200

15,400

1,850

23,100

2,800

14,300

1,720

17,600

2,130

11,000

1,320

n (min-1)

v f (mm/min)

n (min-1)

v f (mm/min)

n (min-1)

v f (mm/min)

n (min-1)

v f (mm/min)

n (min-1)

v f (mm/min)

n (min-1)

v f (mm/min)

n (min-1)

v f (mm/min)

n (min-1)

v f (mm/min)

Pre-HardenedSteels(35～45HRC)CENA1,NAK80

CuttingConditions

Depth of cut(mm)

Cuttingrange

Work(Hardness)

Hardened Steels(45～55HRC)SKD61,SKT4

Hardened Steels(55～65HRC)SKD11,SKH51

Hardened Steels(65～72HRC)SKH,HAP

24,200

4,150

13,000

2,430

22,000

3,550

11,000

1,760

17,600

2,660

10,560

1,580

13,200

2,000

7,920

1,190

20,900

4,020

10,500

2,260

18,150

3,310

9,130

1,670

14,850

2,550

7,040

1,440

11,000

1,910

6,490

1,100

17,600

3,910

8,500

2,060

14,300

3,030

7,590

1,600

12,100

2,440

5,280

1,410

8,800

1,780

5,280

1,060

13,200

3,200

6,400

1,690

11,000

2,550

5,720

1,320

8,800

1,680

4,180

1,170

6,600

1,470

3,960

870

11,000

2,890

5,100

1,460

8,800

2,220

4,510

1,130

7,040

1,640

3,520

1,000

5,280

1,280

3,190

770

8,800

2,400

4,200

1,240

7,260

1,910

3,850

1,000

5,830

1,490

2,640

880

4,400

1,110

2,640

660

HighSpeed

General

HighSpeed

General

HighSpeed

General

HighSpeed

General

Pre-HardenedSteels(35～45HRC)CENA1,NAK80

Hardened Steels(45～55HRC)SKD61,SKT4

Hardened Steels(55～65HRC)SKD11,SKH51

Hardened Steels(65～72HRC)SKH,HAP

HighSpeed

General

HighSpeed

General

HighSpeed

General

HighSpeed

General

Tool dia. (mm)R1.5×3 R2×4 R2.5×5 R3×6 R4×8 R5×10 R6×12

<Finishing>

ae

ap

p f

t

t=0.05～0.1p f=0.02Dc

t=0.05～0.1p f=0.02Dc

t=0.05～0.1p f=0.02Dc

t=0.05～0.1p f=0.02Dc

t=0.05～0.1p f=0.02Dc

t=0.05～0.1p f=0.02Dc

t=0.05～0.1p f=0.02Dc

t=0.05～0.1p f=0.02Dc

t :Finishing cut amountp f :Pick feed

CuttingConditions

Depth of cut(mm)

Cuttingrange

Work(Hardness)

Tool dia. (mm)

Applied for from heavy roughing to finishing of over 35HRC up to 70HRC.Recommended for Forging die and die casting die cutting.

Cutting ConditionsCutting Conditions