Series 29 Fractional Speed & Feed Recommendations Diameter (D1) inch Material Vc Classification Ae x D1 Ap x D1 (sfm) 1/8 1/4 5/16 3/8 Slot RPM 12224 6112 4890 4075 400 1 ≤1 Fr 0.0024 0.0048 0.0060 0.0072 (320-480) Feed (ipm) 29.4 29.4 29.4 29.4 Profile RPM 15280 7640 6112 5093 CFRP, AFRP 500 (Carbon Fiber, ≤ 0.5 ≤ 1.5 (400-600) Fr 0.0024 0.0048 0.0060 0.0072 Aramid Fiber) Feed (ipm) 36.6 36.6 36.6 36.6 HSM RPM 25212 12606 10085 8404 825 ≤ 0.05 ≤2 Fr 0.0055 0.0110 0.0138 0.0165 (660-990) Feed (ipm) 139.0 139.0 139.0 139.0 Slot RPM 9779 4890 3912 3260 320 1 ≤1 Fr 0.0024 0.0048 0.0060 0.0072 (256-384) Feed (ipm) 23.4 23.4 23.4 23.4 Profile RPM 12224 6112 4890 4075 GFRP 400 ≤ 0.5 ≤ 1.5 Fr 0.0024 0.0048 0.0060 0.0072 (Fiberglass) (320-480) Feed (ipm) 29.4 29.4 29.4 29.4 HSM RPM 20170 10085 8068 6723 660 ≤ 0.05 ≤2 Fr 0.0055 0.0110 0.0138 0.0165 (582-792) Feed (ipm) 111.0 111.0 111.0 111.0 Slot RPM 14669 7334 5868 4890 480 1 ≤1 Fr 0.0037 0.0075 0.0094 0.0112 (384-576) Feed (ipm) 55.0 55.0 55.0 55.0 Profile RPM 18336 9168 7334 6112 Carbon, 600 ≤ 0.5 ≤ 1.5 Fr 0.0037 0.0075 0.0094 0.0112 Graphite (480-720) Feed (ipm) 68.7 68.7 68.7 68.7 HSM RPM 30254 15127 12102 10085 990 ≤ 0.05 ≤2 Fr 0.0086 0.0172 0.0215 0.0258 (792-1188) Feed (ipm) 260.0 260.0 260.0 260.0 Slot RPM 24448 12224 9779 8149 800 1 ≤1 Fr 0.0038 0.0075 0.0094 0.0113 (640-690) Feed (ipm) 91.7 91.7 91.7 91.7 Profile RPM 30560 15280 12224 10187 1000 Plastics ≤ 0.5 ≤ 1.5 Fr 0.0038 0.0075 0.0094 0.0113 (800-1200) Feed (ipm) 114.6 114.6 114.6 114.6 HSM RPM 50424 25212 20170 16808 1650 ≤ 0.05 ≤2 Fr 0.0035 0.0069 0.0086 0.0104 (1320-1980) Feed (ipm) 174.0 174.0 174.0 174.0 rpm = sfm x 3.82 / D1 Reduce speed when overheating causes Rates shown are for use without coolant; Refer to the SGS Tool Wizard for complete melting or damage to resin rates may be increased with coolant technical information (www.sgstool.com) ipm = (inch / revolution) x rpm Reduce feed if delamination or fraying occur Dust collection is vital when machining dry HSM (high speed machining) Finish cuts typically required reduced feed Diamond coating will increase tool life in Adjust parameters based on resin type and and cutting depths graphite and composite materials fiber structure 4 www.sgstool.com www.sgstool.com 5