Machinery's Handbook, 31st Edition
1274
GRINDING FEEDS AND SPEEDS Table 5. Group 5—Tool Steels, M2, T2, T5, T6, D2, D5, H41, H42, H43, M50 ECT = 0.00017 mm ECT = 0.00033 mm ECT = 0.00050 mm ECT = 0.00075 mm Constant C = 6695 Constant C = 5224 Constant C = 4040 Constant C = 2915 V T SMRR V T SMRR V T SMRR V T SMRR 100 2020 345 1580 520 1220 610 880 660 10 3680 625 2870 945 2220 1110 1600 1200 1 6695 1140 5225 1725 4040 2020 2915 2185
100
10000
ECT = 17 ECT = 33 ECT = 50 ECT = 75
10
1000
ECT = 17 ECT = 33 ECT = 50 ECT = 75
1
100
1000
10000
1000
10000
V, m/min
V, m/min
Fig. 5a. T - V
Fig. 5b. SMRR versus V , T = 100, 10, 1 minutes
Table 6. Group 6—Tool Steels, M3, M4, T3, D7
ECT = 0.00017 mm ECT = 0.00075 mm Constant C = 5290 Constant C = 4690 Constant C = 3585 Constant C = 2395 V T SMRR V T SMRR V T SMRR V T SMRR 100 1600 270 1415 465 1085 540 725 540 10 2910 495 2580 850 1970 985 1315 985 1 5290 900 4690 1550 3585 1795 2395 1795 ECT = 0.00033 mm ECT = 0.00050 mm
10000
100
ECT = 17 ECT = 33 ECT = 50 ECT = 75
1000
10
ECT = 17 ECT = 33 ECT = 50 ECT = 75
100
1
1000
10000
1000
10000
V, m/min
V, m/min
Fig. 6a. Group 6 Tool Steels T - V
Fig. 6b. SMRR versus V , T = 100, 10, 1 minutes
Copyright 2020, Industrial Press, Inc.
ebooks.industrialpress.com
Made with FlippingBook - Share PDF online