■ 3RFRS, 4RFRS Applications Workpiece Material Application Depth of Cut Outside Dia. φ4 φ5 φ6 φ8 φ10 φ12 (ap×ae) (mm) Dc (mm) Spindle Revolution (min-1) 14,300 11,500 9,600 7,200 5,700 4,800 Shouldering 0.8Dc×0.5Dc Feed Rate (mm/min) 860 860 1,150 1,150 1,150 1,150 <30HRC Spindle Revolution (min-1) 11,500 9,200 7,600 5,700 4,600 3,800 Slotting 0.8Dc Feed Rate (mm/min) 690 690 920 920 920 920 Spindle Revolution (min-1) 9,600 7,600 6,400 4,800 3,800 3,200 Shouldering 0.8Dc×0.4Dc Feed Rate (mm/min) 430 460 640 610 610 570 30~40HRC Spindle Revolution (min-1) 7,600 6,100 5,100 3,800 3,100 2,500 Slotting 0.8Dc Feed Rate (mm/min) 340 370 490 490 490 460 ap Spindle Revolution (min-1) 6,400 5,100 4,200 3,200 2,500 2,100 Shouldering 0.8Dc×0.4Dc Feed Rate (mm/min) 190 230 320 320 320 340 ae Steel 40~50HRC Shouldering Spindle Revolution (min-1) 5,100 4,100 3,400 2,500 2,000 1,700 Slotting 0.5Dc Feed Rate (mm/min) 150 180 260 260 260 270 Spindle Revolution (min-1) 4,800 3,800 3,200 2,400 1,900 1,600 Shouldering 0.8Dc×0.25Dc Feed Rate (mm/min) 100 100 130 140 150 160 50~60HRC Spindle Revolution (min-1) 3,800 3,100 2,500 1,900 1,500 1,300 Slotting 0.3Dc Feed Rate (mm/min) 80 80 100 120 120 130 ap Spindle Revolution (min-1) 3,200 2,500 2,100 1,600 1,300 1,100 Shouldering 0.8Dc×0.2Dc Feed Rate (mm/min) 60 60 70 70 80 90 Slotting 60~70HRC Spindle Revolution (min-1) 2,500 2,000 1,700 1,300 1,000 800 Slotting 0.25Dc Feed Rate (mm/min) 50 50 60 60 60 70 Spindle Revolution (min-1) 6,400 5,100 4,200 3,200 2,500 2,100 Shouldering 0.8Dc×0.4Dc Feed Rate (mm/min) 190 230 340 320 350 380 Titanium Alloys Spindle Revolution (min-1) 4,000 3,200 2,700 2,000 1,600 1,300 L Slotting 0.5Dc Feed Rate (mm/min) 80 100 150 140 160 170 * Machining with water soluble coolant is recommended for titanium alloys. ■ 6PFK, 8PFK (Medium) Applications Workpiece Material Application Depth of Cut Outside Dia. φ6 φ8 φ10 φ12 φ16 φ20 φ25 Solid End Mill (ap×ae) (mm) Dc (mm) Dc<φ20 : 1.5Dc×0.2Dc Spindle Revolution (min-1) 7,400 5,600 4,500 3,700 2,800 2,200 1,800 Carbon Steel, Cast Iron Shouldering Dc≥φ20 : 1.5Dc×0.1Dc Feed Rate (mm/min) 2,650 2,640 2,410 2,250 2,010 1,700 1,500 Dc<φ20 : 1.5Dc×0.2Dc Spindle Revolution (min-1) 6,400 4,800 3,800 3,200 2,400 1,900 1,500 Alloy Steel Shouldering Dc≥φ20 : 1.5Dc×0.1Dc Feed Rate (mm/min) 2,250 2,090 1,950 1,910 1,720 1,450 1,220 ap Spindle Revolution (min-1) 5,600 4,200 3,300 2,800 2,100 1,700 1,300 Pre-hardened steel Shouldering 1.5Dc×0.1Dc (30~38HRC) Feed Rate (mm/min) 1,780 1,710 1,520 1,400 1,220 1,120 980 ae Spindle Revolution (min-1) Stainless Steel 5,000 3,800 3,000 2,500 1,900 1,500 1,200 Shouldering Titanium Alloys Shouldering 1.5Dc×0.05Dc Feed Rate (mm/min) 1,350 1,320 1,200 1,130 970 850 720 * Machining with water soluble coolant is recommended for stainless steel and titanium alloys. Slotting is not recommended. ■ 6PFK, 8PFK (Long) Applications Workpiece Material Application Depth of Cut Outside Dia. φ6 φ8 φ10 φ12 φ16 φ20 φ25 (ap×ae) (mm) Dc (mm) Spindle Revolution (min-1) 4,600 3,500 2,800 2,300 1,700 1,400 1,100 Carbon Steel, Cast Iron Shouldering 3.0Dc×0.01Dc Feed Rate (mm/min) 1,830 1,730 1,530 1,380 1,120 880 660 Spindle Revolution (min-1) 3,700 2,800 2,200 1,800 1,400 1,100 900 Alloy Steel Shouldering 3.0Dc×0.01Dc Feed Rate (mm/min) 1,490 1,340 1,220 1,120 940 720 540 ap Spindle Revolution (min-1) 2,800 2,100 1,700 1,400 1,100 850 650 Pre-hardened steel Shouldering 3.0Dc×0.01Dc (30~38HRC) Feed Rate (mm/min) 920 680 750 670 550 480 390 ae Spindle Revolution (min-1) Stainless Steel 2,500 1,900 1,500 1,300 950 750 600 Shouldering Titanium Alloys Shouldering 3.0Dc×0.01Dc Feed Rate (mm/min) 700 670 590 540 440 370 290 * Machining with water soluble coolant is recommended for stainless steel and titanium alloys. Slotting is not recommended. L65