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HRC55° 4Flute end mill cutting parameter recommendation table

 

Material to be processed Carbon steel/alloy steel/cast iron < 20-30HRC Pre-hardened steel/quenched and tempered steel
< 35-48HRC
Stainless steel/tool ​​steel
< 25-35HRC
Diameter Rotating speed Feed rate Rotating speed Feed rate Rotating speed Feed rate
3 14000 680 13000 630 7500 120
4 10800 700 10000 640 5500 125
6 7000 750 6400 690 3700 135
8 5200 750 4800 680 2800 135
10 4200 730 3800 670 2200 135
12 3500 730 3200 670 1850 135
16 2600 680 2400 630 1400 120
20 2100 670 1900 620 1100 105

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