Section I 25-26

MOLD FINISH MASTER SUMIBORON Ballnose Endmills BNBP Type

Recommended Cutting Conditions 1. Use a machine with high rigidity for stable cutting. 2. ‌Non-water soluble cutting oil is recommended. Supply as a mist or external coolant. Take fire prevention precautions to avoid fire hazards caused by sparks igniting during machining or tool breakage. 3. Shorten overhang as much as possible. 4. Adjust cutting conditions according to actual conditions as machine rigidity and other conditions may vary. 5. Depths of cut shown in the table of conditions are maximum depths. Adjust the actual depth of cut to the desired machined surface roughness.

p f

I

Work Material

STAVAX, NAK80, SKD61 (Up to 52HRC)

ELMAX, DC53, SKD11 Modified (Up to 62HRC)

YXR3, SKH (Up to 70HRC)

RE (mm)

LU (mm)

Spindle Speed (min -1 )

Feed Rate (mm/min)

Spindle Speed (min -1 )

Feed Rate (mm/min)

Spindle Speed (min -1 )

Feed Rate (mm/min)

a p (mm)

p f (mm)

a p (mm)

p f (mm)

a p (mm)

p f (mm)

1.2 2.0 3.0 4.0 1.5 2.0 3.0 4.0 5.0 6.0 2.5 3.0 4.0 6.0 8.0 5.5 8.0

40,000 1,000

0.005 0.010

40,000 40,000 40,000 40,000

800 0.005 0.010 600 0.005 0.010 500 0.005 0.010 400 0.005 0.005

40,000 40,000 40,000 40,000

600 0.005 0.005 400 0.005 0.005 300 0.005 0.005 200 0.005 0.005

40,000 40,000 40,000

800 0.005 0.010 600 0.005 0.010 500 0.005 0.010

0.2

40,000 1,600 40,000 1,500 40,000 1,400 30,000 1,200 40,000 2,800 40,000 2,600 40,000 2,400 25,000 1,500 30,000 30,000 16,000 1,200 32,000 2,400 40,000 4,000 32,000 3,000

40,000 1,400 40,000 1,300 40,000 1,200 30,000 1,000 40,000 2,800 40,000 2,600 40,000 2,400 25,000 1,500 30,000 30,000 16,000 1,100 32,000 2,200 40,000 4,000 32,000 2,600

40,000 1,200 40,000 1,100 40,000 1,000

0.020 0.020 0.010 0.020 0.010 0.020 0.010 0.010 0.040 0.050 0.040 0.050 0.030 0.050 0.020 0.030 0.020 0.020 0.030 0.030 0.050 0.050 0.030 0.050

0.010 0.020 0.010 0.020 0.010 0.020 0.010 0.010 0.030 0.040 0.030 0.040 0.020 0.030 0.010 0.020 0.010 0.020 0.020 0.030 0.030 0.030 0.020 0.030

0.010 0.020 0.010 0.010 0.010 0.010

0.3

30,000 30,000 30,000

700 0.005 0.010 600 0.005 0.005 400 0.005 0.005

800 0.010 0.010 600 0.005 0.010

700 0.005 0.010 500 0.005 0.005

40,000 2,200 40,000 2,100 40,000 2,000 25,000 1,300 32,000 2,000 40,000 3,000 32,000 2,200 16,000

0.020 0.030 0.020 0.030 0.020 0.020 0.010 0.010 0.020 0.020 0.020 0.030 0.010 0.020

0.5

850 0.010 0.010

0.75 4.0

1.0

I 117

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