1/4 Inch 4 Flute End Mill Tungsten Steel HRC55 Internal R 4 Flute Milling Cutter

Brand Name:BWIN
Model Number:R1.25*D6*50L-4F
Minimum Order Quantity:1pcs/box
Delivery Time:7 work days
Payment Terms:T/T, Western Union
Place of Origin:China
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Location: Shenzhen China
Address: No.1613, honghai Bldg., Songgang Rd., Baoan Area, Shenzhen , China
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Product Details

1/4 Inch End Mill Carbide HRC55 4 Flute Inner R Endmill Tungsten Steel Inner R Milling Cutter

Quick Detail

  • Tungsten steel bars
  • Bronze colored nano coating
  • 0 ° helix angle
  • 4-blade blade
  • R-angle design
  • Straight groove chip removal

Description

  • The HRC55 4F internal R milling cutter uses 0.4UM micro particle tungsten steel base material, which has higher wear resistance and strength, and is a specialized milling cutter for high hardness and high-speed cutting applications; The large core diameter is more stable, and the large core diameter design is adopted under the condition of ensuring the cutting space, greatly enhancing the rigidity and seismic resistance of the cutting tool, and reducing tool breakage; Refine the chip removal groove to avoid knife sticking and greatly improve production efficiency.

Milling parameters

HRC55 Carbide Inner R End Mill
Tool lengthfz&v
Short

1

Long10.9
Overlength0.8
Speciality0.6
TypeMaterial

Strength

N/mm²


Hardness

HRC

Cooling
Air

Dry cutting

Lubricating fluid
PPI

P1.1

Non alloy structural steel, free cutting structural steel, carburized steel and quenched and tempered steel<700
P1.2quenched and tempered steel<1200
P2P2.1Alloyed nitrided steel, carburized steel and quenched and tempered steel<900
P2.2Tool steel, bearing steel, spring steel and high-speed steel<1400
P3P3.1Tool steel, bearing steel, spring steel and high-speed steel<900
P3.2Tool steel, bearing steel, spring steel and high-speed steel<1500

Sloting
Vc
(m/min)
fz(mm/Tooth)
Diameter
246810121620
1120.010.0180.0260.0340.0410.0480.060.069
920.010.0170.0250.0320.0380.0450.0560.065
1000.010.0180.0260.0340.0410.0480.060.069
720.0090.0150.0220.0280.0340.040.050.058
640.010.0180.0250.0320.0390.0450.0570.066
560.0090.0160.0230.0290.0360.0410.0520.06

Roughing
Vc
(m/min)
fz(mm/Tooth)
Diameter
246810121620
2280.0180.0310.0450.0570.0700.0810.1010.118
2080.0170.0290.0420.0540.0650.0710.0950.11
1840.0180.0310.0450.0570.0700.0810.1010.118
1440.0150.0260.0370.0480.0580.0680.0850.098
1320.0170.030.0420.0540.0660.0770.0960.112
1120.0150.0270.0390.050.0600.070.0880.102

Finish
Vc
m/min
fz(mm/Tooth)
Diameter
2468101214161820
3320.0280.050.070.0910.110.1280.1440.160.1730.186
2720.0260.0460.0660.0850.1030.120.1350.150.1620.173
3040.0280.050.070.0910.110.1280.1440.160.1730.186
2120.0230.0410.0590.0760.0920.1070.1210.1340.1450.155
1960.0270.0470.0670.0860.1040.1220.1370.1520.1650.177
1680.0240.0430.0610.0790.0950.1110.1250.1390.1500.161
Note
  • If the following carbide end mill cannot meet your requirements, we support OEM customized production. The diameter of 0.2mm to 25mm, the total length of 50mm to 200mm, 4F, 5F, 6F, 8F and logo can be customized, including inch size end milling cutter. Please contact us to select or customize non-standard carbide end mill according to your needs.
Radius
Cutting diameter
Tip diameter
Shank diameter
Overall
length
Flutes
R0.5
4
3
4
50
2/4
R0.75
4
2.5
4
50
2/4
R1.0
4
2
4
50
2/4
R1.25
6
3.5
6
50
2/4
R1.5
6
3
6
50
2/4
R1.75
6
2.5
6
50
2/4
R2.0
6
2
6
50
2/4
R2.5
8
3
8
60
2/4
R3.0
8
2
8
60
2/4
R3.5
10
3
10
75
2/4
R4.0
10
2
10
75
2/4
R5.0
12
2
12
75
2/4
R6.0
14
2
14
75
2/4

Instructions

1. Before using the carbide end mill, please measure the tool deflection. If the tool deflection accuracy exceeds 0.01mm, please correct it before cutting.

2. The shorter the carbide e extends out of the collet, the better. If the tool extends out longer, reduce the speed, feed speed or cutting amount.

3. In case of abnormal vibration or sound during cutting, please reduce the speed and cutting amount until the situation is improved.

4. Spray type and air jet type are preferred for steel cooling, which can improve the use effect of carbide end mill.

5. Note: Not suitable for low speed machines such as rotary table and electric hand drill.


Applications

The cutting edge of the HRC55 4F inner R milling cutter is covered with a bronze colored nano coating, suitable for materials within HRC55, including iron, carbon steel, cast iron, mold steel, alloy steel, tool steel, heat treated steel, and welding repair steel


FAQ

Q1. The tool breaks when cutting in or pulling out the workpiece

The feed rate and cutting depth can be reduced, and the cutting edge length can be shortened to the minimum of the necessary length.


Q2. Tool breaks during normal machining

Reduce the feed rate and cutting depth.

The tool shall be passivated.

Replace the clamp or spring collet.

The tool with high cutting edge number changes the tool with low cutting edge number to improve chip removal and prevent chip blockage.

Replace dry milling with wet milling (using cutting fluid), and use it with vortex tube gun to reduce tool temperature and avoid tool overheating.

If the wet milling fluid supply direction is changed from the front to the oblique rear or transverse top, the coolant flow should be sufficient.


Q3. The tool breaks when the feed direction changes

(1) Use arc interpolation (NC machine tool), or temporarily stop (temporarily) feeding.

(2) Reduce (decrease) the feed before and after the direction change.

(3) Replace the clamp or spring collet.


Q4. Problem: Part of the blade tip breaks

Chamfer the corners with manual grinding.

Change down milling to up milling.


China 1/4 Inch 4 Flute End Mill Tungsten Steel HRC55 Internal R 4 Flute Milling Cutter supplier

1/4 Inch 4 Flute End Mill Tungsten Steel HRC55 Internal R 4 Flute Milling Cutter

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