GRINDING FEEDS AND SPEEDS Table 1. Group 1—Unhardened Steels Machinery's Handbook, 31st Edition
1272
ECT = 0.00017 mm ECT = 0.00075 mm Constant C = 8925 Constant C = 6965 Constant C = 5385 Constant C = 3885 V T SMRR V T SMRR V T SMRR V T SMRR 100 2695 460 2105 695 1625 815 1175 880 10 4905 835 3830 1265 2960 1480 2135 1600 1 8925 1520 6965 2300 5385 2695 3885 2915 ECT = 0.00033 mm ECT = 0.00050 mm
10000
100
ECT = 17 ECT = 33 ECT = 50 ECT = 75
T =1 min.
T =10 min.
1000
10
T =100
ECT = 17 ECT = 33 ECT = 50 ECT = 75
100
1
1000
10000
1000
10000
V, m/min
V, m/min
Fig. 1a. T - V Fig. 1b. SMRR versus V , T = 100, 10, 1 minutes Table 2. Group 2—Stainless Steels SAE 30201—30347, SAE 51409—51501 ECT = 0.00017 mm ECT = 0.00033 mm ECT = 0.00050 mm ECT = 0.00075 mm Constant C = 2270 Constant C = 1970 Constant C = 1505 Constant C = 1010 V T SMRR V T SMRR V T SMRR V T SMRR 100 685 115 595 195 455 225 305 230 10 1250 210 1080 355 825 415 555 415 1 2270 385 1970 650 1505 750 1010 760
10000
100
ECT = 17 ECT = 33 ECT = 50 ECT = 75
ECT = 17 ECT = 33 ECT = 50 ECT = 75
1000
10
1
100
100
1000
10000
100
1000
10000
V, m/min
V, m/min
Fig. 2b. SMRR versus V , T = 100, 10, 1 minutes
Fig. 2a. T - V
Copyright 2020, Industrial Press, Inc.
ebooks.industrialpress.com
Made with FlippingBook - Share PDF online