Optimum OPTiturn TM 4010 - Table Cutting Speeds

Cutting speeds
Version 1.0.1 dated 31. January 2018Page 56 Translation of the original instructions
TurningEN
VC_GB.fm
OPTIMUM
MASCHINEN - GERMANY
®
5.4 Table cutting speeds
Reference values for cutting speeds v
c
in m/min when turning high speed steel and hard metal. (Excerpt from VDF 8799, Gebr. Boehringer GmbH, Göppingen)
1) The entered values apply for a chipping depth of up to 2.24 mm. From 2.24 mm to 7.1 mm the values must be reduced by 1 stage of the row R10 by approximately 20%. From 7.1 mm to 22.4
mm the values must be reduced by 1 stage of the row R5 by approximately 40%.
2) The values v
c
must be reduced by 30 .... to 50% for turning a crust, for removal of cast skin or for sand inclusions.
3) The service life t for hard metal P10, K10, K20 = 240 min; for high speed steel SS = 60 min.
Material
Tensile
strength
R
m
in
N
mm
2
Cutting material
3
)
Infeed f in mm/rev. and setting angle k
r
1
)
2
)
0.063 0.1 0.16 0.25 0.4 0.63 1 1.6 2.5
45
0
60
0
90
0
45
0
60
0
90
0
45
0
60
0
90
0
45
0
60
0
90
0
45
0
60
0
90
0
45
0
60
0
90
0
45
0
60
0
90
0
45
0
60
0
90
0
45
0
60
0
90
0
St 34; St 37; C22;
St 42
High-speed steel 50 4034.54535.52835.52822.42822.418 25 20 16 20 1612.51612.510
up to 500 P 10 250 236 224 224 212 200 200 190 180 180 170 160 162 150 140 140 132 125 125 118 112 112 106 100
St 50; C 35 500...600
High-speed steel 4535.52835.52822.42822.418 25 20 16 20 1612.51612.51012.510 8
P 10 224 212 200 200 180 170 160 160 150 140 140 132 125 125 118 112 112 106 100 100 95 90
St 60; C45 600...700
High-speed steel 35.52822.42822.418 25 20 16 20 1612.51612.51012.510 8 10 8 6.3
P 10 212 200 190 190 180 170 170 160 150 150 140 132 132 125 118 118 112 106 106 100 95
St 70; C60 700...850
High-speed steel 28 22.4 18 25 20 16 12.5 16 12.5 16 12.5 10 12.5 10 8 10 8 6.3 8 6.3 5
P 10 180 170 160 160 150 140 140 132 125 125 118 112 106 100 95 95 90 85 85 80 75
Mn-;
CrNi-,
CrMo-
among others
alloyed steels
700...850
High-speed steel 25 20 16 20 16 12.5 16 12.5 10 12.5 10 8 11 9 7 9 7 5.6 7.5 6 4.5
P 10 180 170 160 160 150 140 140 132 125 125 118 112 106 100 95 95 90 85 85 80 75
850...1000
High-speed steel 20 1612.51612.51012.510 8 10 8 6.3 8 6.3 5 7.1 5.64.5 5.6 4.5 3.6
P 10 140 132 125 125 118 112 100 95 90 90 85 80 71 67 63 63 60 56 56 53 50
1000..1400
High-speed steel 14 11 9 11 9 7 9 7 5.6 7 5.6 4.5 5.6 4.5 3.6 4.5 3.6 2.8 3.6 2.8 2.2
P 10 80 75 71 71 67 63 63 60 56 56 53 50 50 47.5 45 45 42.5 40 33.5 33.5 31.5
Rust-resistant steel 600..700 P 10 80 75 71 71 67 63 56 53 50 50 47.5 45 45 42.5 40 33.5 33.5 31.5 31.5 30 28
Tool steel 1500..1800
High-speed steel 9 7 5.6 5.6 4.5 3.6 4 3.2 2.5
P 10 45 42.5 40 40 37.5 35.5 35.5 33.5 31.5 28 26.5 25 25 23.4 22 22 21 20 18 17 16
Mn - High-carbon steel P 10 33.5 33.5 31.5 31.5 30 28 28 26.5 25 22 21 20 20 19 18 18 17 16
GS-45 300..500
High-speed steel 4535.52835.528 2231.525 20 25 20 16 20 1612.51612.51012.510 8
P 10 15014013211811210610610095959085858075757167676360
GS-52 500..700
High-speed steel 28 22 18 25 20 16 20 16 12.5 16 12.5 10 12.5 10 8 11 9 7 9 7 5.6
P 10 10610095959085858075757167676360605653535047.5
GS-15 HB...2000
High-speed steel 45 40 31.5 31.5 28 22 22 20 16 18 16 12.5 12.5 11 9 11 10 8 9 8 6.3
K20 125 118 112 112 106 106 100 95 95 90 85 85 80 75 75 71 67 67 63 60
GS-25
HB
2000..2500
High-speed steel 28 25 20 20 18 14 14 12.5 10 11 10 8 9 8 6.3 7.5 6.7 5.3 6 5.3 4.25
K10 959085858075757167676360605653535047.547.54542.542.54037.5
GTS-35
GTW-40
High-speed steel 37.5 33.5 33.5 28 26.5 25 22 21 20 18 17 16 12.5 12 11 11 10 10 9 8.5 8
K10/P10 959085858075757167676360605653535047.547.54542.542.54037.5
White cast iron RC420..570 K10 19 18 17 17 16 15 15 14 13.2 13.2 12.5 11.8 11.8 11.2 10.6 10.6 10 9.5 9 8.5 8 8 7.5 7.1
Cast bronze
DIN 1705
High-speed steel 53 50 47.5 47.5 45 42.5 42.5 40 37.5 37.5 35.5 33.5 31.5 30 28 28 26.5 25 25 23.6 22.4
K 20 315 300 280 280 265 250 250 236 224 224 212 200 200 190 180 180 170 160 160 150 140 140 132 125
Red brass
DIN 1705
High-speed steel 75 71 67 63 60 56 50 47.5 45 40 37.5 35.5 31.5 30 28 28 26.5 25 25 23.6 22.4
K 20 425 400 375 400 375 355 355 335 315 335 315 300 300 280 265 265 250 236 250 236 224 236 224 212
Brass
DIN 1709
HB
800..1200
High-speed steel 112 106 100 90 85 80 67 63 60 50 47.5 45 37.5 33.5 33.5 26.5 25 23.6
K 20 500 475 450 475 450 425 450 425 400 400 375 355 355 335 315 335 315 300 300 280 265 280 265 250
AL cast
DIN 1725
300..420
High-speed steel 125 118 112 100 95 85 75 71 67 56 53 50 42.5 40 37.5 31.5 30 28 25 23.6 22.4
K 20 250 236 224 224 212 200 200 190 180 180 170 160 160 150 140 140 132 125 125 118 112 118 112 106 100 95 90
Mg alloy
DIN 1729
High-speed steel 850 800 750 800 750 710 750 710 670 670 630 600 630 600 560 600 560 530 600 560 530 560 530 500 530 500 475
K 20 1600 1500 1400 1320 1250 1250 1180 1120 1120 1120 1060 1000 1000 950 900 900 850 800 800 750 710 710 670 630 630 600 560