High Performance, High Reliability Square & Corner Radius ... · PDF fileEPP4: Four Flute, TH...

© 2013 Hitachi Tool Engineering USA | ph 800 333 1514 | www.hitachitoolusa.com230

EPP Series

Extremely rigid design and thin coating layer provide highly accurate finishes

Improved flute design provides exceptional chip evacuation

EPP-CR: Four Flute, TH Coated Corner Radius End Mills

EPP4: Four Flute, TH Coated Square End Mills

EPP3: Three Flute, CS Coated Square End Mills

High Performance, High Reliability Square & Corner Radius End Mills

FEATURES

41

© 2013 Hitachi Tool Engineering USA | ph 800 333 1514 | www.hitachitoolusa.com 231

EPP Series

41

IntroductIonThe EPP Series End Mills are ideal for the high-speed roughing, semi-finishing and finishing of a wide variety of materials, especially from pre-hardened steels (35HRC) to hardened steels. Their rigid design efficiently evacuates chips and provides excellent workpiece finishes.

FeatureS

1. THCoatedEPP-CRandEPP4forHigh-Speed,High-EfficiencyMachiningofHardenedSteels

2. CSCoatedEPP3forHigh-EfficiencyMachiningofCarbonandAlloySteels

3. Range

1200

1

1000

0.8

800

0.6

600

0.4

400

0.2

1000

1000

2000

2000

3000

3000

4000

4000

HARDNESS

HARDNESS

OXI

DIZ

ING

TEM

P (C

°)C

OEF

FIC

IEN

T O

F FR

ICTI

ON

(μ)

TiN

CS

TiAIN

TiAIN

TH

TiN

The high hardness and oxidation resistance of the revolutionary TH Coating ensure excellent performance and long tool life in 40-55HRC hardened steels such as H13, D2, and A2 as well as pre-hardened steels. High heat resistance makes TH Coated tools suitable for dry cutting.

Nano-crystal technology helps to reduce the friction-resistance of the coating while maintaining the hardness. This reduction in friction decreases tool wear and also makes dry cutting possible.

70HRC

D2 (H) AISI 420

AISI 4140 AISI 304

H13 (A) D2 (A)

AISI 1049

H13 (H)

P21

60

50

40

30

20

0 50(164 sfm) (328.1 sfm)

CUTTING SPEED (m/min)(492.1 sfm) (656.2 sfm)

100 150 200


EPP Series

l

ØD

L

Ød

Helix Angle 43°D (Ø3-6) 0/-0.015D (Ø8-10) 0/-0.02d h6

SQUARE NOSE SEMI-FINISHINGROUGHING FINISHING HRC 55

554 FLUTES TH COATING

EPP-CR

Part No. Stock FlutesSize (mm)

Corner Radius ØD l L Ød

EPP4030-02-TH 4 0.2 3 8 60 6EPP4030-05-TH 4 0.5 3 8 60 6EPP4040-02-TH 4 0.2 4 11 60 6EPP4040-05-TH 4 0.5 4 11 60 6EPP4040-10-TH 4 1.0 4 11 60 6EPP4050-02-TH 4 0.2 5 13 60 6EPP4050-05-TH 4 0.5 5 13 60 6EPP4050-10-TH 4 1.0 5 13 60 6EPP4060-03-TH 4 0.3 6 13 60 6EPP4060-05-TH 4 0.5 6 13 60 6EPP4060-10-TH 4 1.0 6 13 60 6EPP4060-15-TH 4 1.5 6 13 60 6EPP4080-03-TH 4 0.3 8 19 75 8EPP4080-05-TH 4 0.5 8 19 75 8EPP4080-10-TH 4 1.0 8 19 75 8EPP4080-15-TH 4 1.5 8 19 75 8EPP4080-20-TH 4 2.0 8 19 75 8EPP4100-03-TH 4 0.3 10 22 80 10EPP4100-05-TH 4 0.5 10 22 80 10EPP4100-10-TH 4 1.0 10 22 80 10EPP4100-15-TH 4 1.5 10 22 80 10EPP4100-20-TH 4 2.0 10 22 80 10EPP4120-05-TH 4 0.5 12 26 100 12EPP4120-10-TH 4 1.0 12 26 100 12EPP4120-15-TH 4 1.5 12 26 100 12EPP4120-20-TH 4 2.0 12 26 100 12EPP4120-30-TH 4 3.0 12 26 100 12

EPP-CR-THFour Flute

=StockeditemsinJapan


EPP Series


SQUARE NOSE SEMI-FINISHINGROUGHING FINISHING HRC 55

554 FLUTES TH COATING

EPP4-TH - METRIC

Part No.Size (mm)

Stock Flutes ØD l L Ød

EPP4030-TH 4 3 8 60 6EPP4040-TH 4 4 11 60 6EPP4050-TH 4 5 13 60 6EPP4060-TH 4 6 13 60 6EPP4070-TH 4 7 16 70 8EPP4080-TH 4 8 19 75 8EPP4090-TH 4 9 19 80 10EPP4100-TH 4 10 22 80 10EPP4110-TH 4 11 22 100 12EPP4120-TH 4 12 26 100 12

EPP4-THFour Flute



EPP Series

Side Milling

Work Material(Hardness)

CuttingRange

Step down/Step overD: Dia mm

CuttingConditions

Tool Dia.

Ø3 Ø4 Ø5 Ø6 Ø8 Ø10Alloy Steel(200-250HB)

HighSpeed

ap=1.5D N (RPM) 16,000 12,000 9,600 8,000 6,000 4,800ae=0.1D Vf (mm/min) 1,800 1,900 2,100 2,200 2,400 2,200

General ap=1.5D N (RPM) 9,600 7,200 5,700 4,800 3,600 2,900ae=0.15D Vf (mm/min) 860 920 1,000 1,080 1,150 1,070

Alloy Steel(25-35HRC)

HighSpeed


General ap=1.5D N (RPM) 9,600 7,200 5,700 4,800 3,600 2,900ae=0.1D Vf (mm/min) 770 830 900 970 1,040 960

Pre-HardenedSteel(35-45HRC)

HighSpeed


General ap=1.5D N (RPM) 8,500 6,400 5,100 4,200 3,200 2,500ae=0.07D Vf (mm/min) 610 660 720 750 820 740

Hardened Steel(45-55HRC)

HighSpeed

ap=1.5D N (RPM) 11,000 8,000 6,400 5,300 4,000 3,200ae=0.02D Vf (mm/min) 860 900 990 1,040 1,120 1,030

General ap=1.5D N (RPM) 7,400 5,600 4,500 3,700 2,800 2,200ae=0.05D Vf (mm/min) 460 500 550 580 630 570

Slotting


CuttingRange

Step down/Step overD: Dia mm

CuttingConditions

Tool Dia.

Ø3 Ø4 Ø5 Ø6 Ø8 Ø10Alloy Steel(200-250HB)

HighSpeed

ap≤0.5D N (RPM) 8,500 6,400 5,100 4,200 3,200 2,500ae=1D Vf (mm/min) 820 920 980 1,010 1,090 950

General ap≤1D N (RPM) 6,400 4,800 3,800 3,200 2,400 1,900ae=1D Vf (mm/min) 490 550 580 610 650 580

Alloy Steel(25-35HRC)

General ap≤0.5D N (RPM) 6,400 4,800 3,800 3,200 2,400 1,900ae=1D Vf (mm/min) 440 500 530 550 590 520

Pre-Hardened Steel(35-45HRC)


Hardened Steel(45-55HRC)


EPP-CR-TH/EPP-THCutting Conditions(Metric)

ap

ae

ap

ae


EPP Series


SQUARE NOSE SEMI-FINISHINGROUGHING FINISHING

40HRC 40 3 FLUTES CS COATING

A

B

EPP3-CS - METRIC

Part No.Size (mm)

Stock Flutes ØD l L Ød Type

EPP3030-CS 3 3 8 60 6 AEPP3040-CS 3 4 11 60 6 AEPP3050-CS 3 5 13 60 6 AEPP3060-CS 3 6 13 60 6 BEPP3080-CS 3 8 19 75 8 BEPP3100-CS 3 10 22 80 10 BEPP3120-CS 3 12 26 100 12 B

EPP3-CSThree Flute



EPP Series


CuttingRange

SlottingDia. (mm)

SideMillingDia. (mm)

CuttingConditions

Tool Dia.

Ø3 Ø4 Ø5 Ø6 Ø8 Ø10 Ø12Aluminium AlloyWroughtA7075, A5052

HighSpeed

ap≤0.5D ap=1.5D N (RPM) 37,000 28,000 22,000 19,000 14,000 11,000 9,300

ae=1D ae=0.1D Vf (mm/min) 2,800 2,900 3,200 3,500 3,600 3,300 3,100

General ap≤1D ap=1.5D N (RPM) 21,000 16,000 13,000 11,000 8,000 6,400 5,300

ae=1D ae=0.2D Vf (mm/min) 1,600 1,700 1,900 2,000 2,000 1,900 1,700

Cast Iron(150-200HB)

HighSpeed

ap≤0.5D ap=1.5D N (RPM) 6,400 4,800 3,800 3,200 2,400 1,900 1,600

ae=1D ae=0.1D Vf (mm/min) 480 500 550 600 610 570 530


ae=1D ae=0.2D Vf (mm/min) 320 340 360 390 410 390 360

Carbon Steel(180-220HB)

HighSpeed

ap≤0.5D ap=1.5D N (RPM) 9,600 7,200 5,700 4,800 3,600 2,900 2,400

ae=1D ae=0.1D Vf (mm/min) 860 860 940 1,010 1,030 1,000 900


ae=1D ae=0.2D Vf (mm/min) 560 590 650 690 710 660 630

Alloy Steel(200-250HB)

HighSpeed

ap≤0.5D ap=1.5D N (RPM) 7,400 5,600 4,500 3,700 2,800 2,200 1,900

ae=1D ae=0.1D Vf (mm/min) 670 670 740 780 800 760 710


ae=1D ae=0.15D Vf (mm/min) 400 420 460 500 510 480 430

Pre-hardenedSteel(25-40HRC)

General ap≤0.5D ap=1.5D N (RPM) 5,300 4,000 3,200 2,700 2,000 1,600 1,300

ae=1D ae=0.1D Vf (mm/min) 360 360 400 430 430 410 370

Stainless Steel General ap≤0.5D ap=1.5D N (RPM) 5,300 4,000 3,200 2,700 2,000 1,600 1,300

ae=1D ae=0.1D Vf (mm/min) 290 290 320 340 340 330 290

Titanium AlloysTi-6Al-4V

General ap≤0.2D ap=1.5D N (RPM) 5,300 4,000 3,200 2,700 2,000 1,600 1,300

ae=1D ae=0.1D Vf (mm/min) 360 360 400 430 430 410 370

High Heat Resis-tant AlloysInconel, Hasteloy

General ap≤0.2D ap=1.5D N (RPM) 2,100 1,600 1,300 1,100 800 640 530

ae=1D ae=0.05D Vf (mm/min) 90 100 110 120 110 110 100

- For slotting, please refer to the chart above regarding the depth of cut for slotting.- For side milling, please increase RPM to 1~1.3 times and Feed Rate to 1~1.5 times of the figures in the chart above.- The RPM generally used for slotting is used for spot facing, just lower the feed rate by about 20%.

ap

ae

ap

ae

EPP3-CSCutting Conditions(Metric)

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