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Square End Mills For CNC Machine Tools

Material: Tungsten Carbide | Tungsten Steel
Type: Square End Mill / Corner Radius End Mill / Ball End Mill / Roughing End Mill / Taper End Mill
Dimension: standard size (refer to manual)/ non-standard size (please provide drawing design & specification)
Blade specification: single flute end mill, 2-flute end mill, 3-flute end mill, 4-flute end mill
Workpiece materials: stainless steel, cast iron, aluminum, copper, graphite, plastic parts, composite materials, titanium alloy, nickel, heat-resistant steel, non-alloy steel parts, low-alloy steel parts, high-alloy steel parts

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Description

End mill working condition calculation method

●Cutting speed (linear speed)

Calculation VC

The distance that a point on the circumference of the end mill blade moves per minute can be calculated using the following formula:

V=Cutting speed(m/min)

π=3.14

D=Diameter(mm)

N=Rotating speed(mm-¹)

●Rotation speed

Calculation of Rotationspeed

The number of revolutions per minute of the mechanical spindle that holds the end mill can be calculated using the following formula:

N=Rotating speed(mm-¹)

V=Cutting speed(m/min)

π=3.14

D=Diameter(mm)

● Feed rate

Calculation of Feed rate

The feed speed of the worktable per minute can be calculated by the following formula

F=Feed rate(mm/min)

N=Rotating speed(mm-1)

Z=Number of flute

f=Feed rate of the flute(mm/1flute)

● Feed for teeth

Calculation of the Feed ofteeth

The distance that a point on the circumference of the end mill blade moves per minute can be calculated using the following formula:

f=Feed rate of the flute(mm/1flute)

F=Feed rate(mm/min)

N=Rotating speed(mm-1)

Z=Number of flute

●Working time

Calculation of the Working time

The time required to cut the workpiece material can be calculated using the following formula

Tc=Working time(min)

L=Total working length

(Working material length + end mill blade diameterD)

F=Feed rate(mm/min)

Name of each part of the milling cutter

Milling cutter series

End mill type End mill shape

2-flute/4-flute end mills

WC=90/88 Co=10/12 HV30=1571 TRS=3750N/mm² HRC≥91.5 Grain Size=0.6μm

d	I	L	D	F
1	3	50	4	2/4
1.5	4	50	4	2/4
2	5	50	4	2/4
2.5	6	50	4	2/4
3	7	50	4	2/4
3.5	8	50	4	2/4
4	10	50	4	2/4
5	13	50	6	2/4
6	15	50	6	2/4
7	18	60	8	2/4
8	20	60	8	2/4
10	25	75	10	2/4
12	30	75	12	2/4
14	45	100	14	2/4
16	45	100	16	2/4
18	45	100	18	2/4
20	45	100	20	2/4

2-Flute/4-Flute extended end mill

WC=90/88 Co=10/12 HV30=1571 TRS=3750N/mm² HRC≥91.5 Grain Size=0.6 μm

d	I	L	D	F
4	15	100	4	2/4
6	25	100	6	2/4
8	30	100	8	2/4
10	40	100	8	2/4
12	45	100	10	2/4
8	40	150	10	2/4
10	50	150	12	2/4
12	60	150	12	2/4
14	65	150	14	2/4
16	70	150	16	2/4
18	70	150	18	2/4
20	70	150	20	2/4

◆Special Attention：

1. This table is the standard value for side milling. When the tool is grooving, the speed should be 60%~80% of the table below, and the feed speed should be 50%~70% as the standard value.

2. Please use high-precision machine tools and tool holders.

3. Please use air cooling or cutting fluid that does not easily produce smoke.

4. Side milling is recommended for down milling.

5. If the rigidity of the machine tool and the workpiece is poor, vibration and abnormal sound will occur. At this time, the speed and feed speed in the table below should be reduced year by year.

6. Keep the tool overhang as short as possible without interference.

Cutting conditions

2 Flute

Processed materials

Cast iron

Ductile iron

Carbon steel\alloy steel ~750N/mm²

Carbon steel\alloy steel ~30HRC

PHS\QT Steel~40HRC

Stainless steel

PHS\QT Steel

~50HRC

Dia

(mm)

RPM(min-)

Feedrate (mm/min)

RPM

(min-¹)

Feedrate

(mm/min)

RPM

(min-)

Feedrate

(mm/min)

RPM

(min-¹)

Feedrate

(mm/min)

RPM (min-¹)

Feedrate (mm/min)

RPM

(min-¹)

Feedrate

(mm/min)

20000

165

20000

165

20000

135

20000

135

20000

100

15000

265

15000

265

15000

240

15000

235

11150

13000

150

14000

455

14000

455

13000

420

10600

350

7500

100

8500

275

10800

465

10800

465

10000

430

8000

355

5500

110

6500

280

8200

485

8200

485

7600

450

6400

370

4500

110

5000

295

7000

500

7000

500

6400

460

5300

385

3700

115

4200

300

5200

495

5200

495

4800

455

4000

380

2800

115

3200

305

4200

485

4200

485

3800

450

3200

370

2200

115

2500

290

3500

485

3500

485

3200

450

2650

370

1850

115

2100

290

3000

455

3000

455

2700

420

2300

350

1600

110

1800

275

2600

455

2600

455

2400

420

2000

350

1400

100

1600

275

2300

445

2300

445

2100

410

1800

345

1250

100

1400

270

2050

445

2050

445

1900

410

1600

345

1100

100

1250

270

4 Flute

20000

250

20000

250

20000

200

20000

200

20000

150

15000

400

15000

400

15000

360

15000

350

11150

100

13000

225

14000

680

14000

680

13000

630

10600

525

7500

120

8500

410

10800

700

10800

700

10000

640

8000

535

5500

125

6500

420

8200

730

8200

730

7600

670

6400

560

4500

125

5000

440

7000

750

7000

750

6400

690

5300

575

3700

135

4200

450

5200

740

5200

740

4800

680

4000

565

2800

135

3200

460

4200

730

4200

730

3800

670

3200

560

2200

135

2500

435

3500

730

3500

730

3200

670

2650

560

1850

135

2100

435

3000

680

3000

680

2700

630

2300

525

1600

125

1800

410

2600

680

2600

680

2400

630

2000

525

1400

120

1600

410

2300

670

2300

670

2100

620

1800

515

1250

105

1400

405

2050

670

2050

670

1900

620

1600

515

1100

105

1250

405

Max Cutting Depth

Ae=0.1D

Ap=1D

Ae=0.05D

Ae=1D

Ap=1D

Ae=1D

Groove Cutting

Tool Dia. Cutting Depth Ap

φ1≤D<φ3 0.15D

φ3≤D 0.3D

2-Flute/3-Flute end mill for aluminum alloy

WC=90/88 Co=10/12 HV30=1571 TRS=3750N/mm² HRC≥91.5Grain Size=0.6 μm

d	I	L	D	F
1	3	50	4	2/3
1.5	4	50	4	2/3
2	6	50	4	2/3
2.5	8	50	4	2/3
3	9	50	4	2/3
3.5	10	50	4	2/3
4	12	50	4	2/3
5	15	50	6	2/3
6	18	50	6	2/3
7	20	60	8	2/3
8	24	60	8	2/3
10	30	75	10	2/3
12	35	75	12	2/3
14	40	100	14	2/3
16	45	100	16	2/3
18	45	100	18	2/3
20	50	100	20	2/3

2-Flute/3-Flute Aluminum Alloy Extended Special End Mill

WC=90/88 Co=10/12 HV30=1571 TRS=3750N/mm² HRC≥91.5 Grain Size=0.6μm

d	I	L	D	F
4	16	100	4	2/3
6	25	100	6	2/3
8	32	100	8	2/3
10	40	100	10	2/3
12	45	100	12	2/3
8	40	150	8	2/3
10	50	150	10	2/3
12	60	150	12	2/3
14	65	150	14	2/3
16	65	150	16	2/3
18	70	150	18	2/3
20	70	150	20	2/3

◆Special Attention：

1. The following table shows the standard values for side milling. When the tool is grooving, the speed should be 60%~80% of the table below, and the feed speed should be 50%~70% as the standard value.

2. Please use high-precision machine tools and tool holders.

3. Please use air cooling or cutting fluid that does not easily produce smoke.

4. Down milling is recommended for side milling.

5. If the rigidity of the machine tool and the workpiece is poor, vibration and abnormal sound will occur. At this time, the speed and feed speed in the table below should be reduced year-on-year.

6. Keep the tool overhang as short as possible without interference.

Aluminum Cutting Conditions

2Flute
Processed materials	Aluminum Alloy		Silicon Aluminum Alloy Si≤10%
D (mm)	RPM (min-')	Feedrate (mm/min)	RPM (min-¹)	Feedrate (mm/min)
1	40000	650	40000	500
2	40000	950	32000	750
3	26500	1500	21000	1100
4	20000	1600	16000	1250
5	16000	1500	13000	1100
6	13000	1250	10600	1000
8	10000	1400	8000	1100
10	8000	1600	6500	1250
12	6600	1650	5300	1300
14	5700	1700	4600	1350
16	5000	1700	4000	1350
18	4400	1700	3500	1350
20	4000	1700	3200	1350
		3Flute
1	40000	800	40000	600
2	40000	1200	32000	900
3	26500	1800	21000	1300
4	20000	2000	16000	1500
5	16000	1750	13000	1300
6	13000	1500	10600	1200
8	10000	1650	8000	1300
10	8000	1900	6500	1500
12	6600	1950	5300	1550
14	5700	2000	4600	1600
16	5000	2000	4000	1600
18	4400	2000	3500	1600
20	4000	2000	3200	1600

Max Cutting Dept

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