Global Catalog Metric 8-16-23 web - Flipbook - Page 193
FRACTIONAL
Hi-PerCarb®
Series 146U, 136U
Fractional
ALUMINUM ALLOYS
(WROUGHT)
2024, 6061, 7075
≤ 150 Bhn
or
≤ 88 HRb
475
(380-570)
N
ALUMINUM ALLOYS
(CAST)
A356, A380, 390
≤ 140 Bhn
or
≤ 3 HRc
≤ 275 Bhn
or
≤ 28 HRc
S
TITANIUM ALLOYS
Pure Titanium, Ti6Al4V,
Ti6Al2Sn4Zr2Mo,
Ti4Al4Mo2Sn0.5Si,
Ti-6Al4V
≤ 350 Bhn
or
≤ 38 HRc
≤ 440 Bhn
or
≤ 47 HRc
ALLOY STEELS
4140, 4150, 4320, 5120, 5150,
8630, 86L20, 50100
≤ 450 Bhn
or
≤ 48 HRc
TOOL STEELS
A2, D2, H13, L2, M2,
P20, S7, T15, W2
≤ 475 Bhn
or
≤ 50 HRc
DC • in
Vc
(sfm)
Hardness
380
(304-456)
175
(140-210)
130
(104-156)
70
(56-84)
95
(76-114)
H
80
(64-96)
1/16
1/8
1/4
3/8
1/2
5/8
3/4
RPM
29032
14516
7258
4839
3629
2903
2419
2233
Fr
0.0016
0.0031
0.0062
0.0093
0.0124
0.0155
0.0186
0.0202
Feed (ipm)
45.0
45.0
45.0
45.0
45.0
45.0
45.0
45.0
RPM
23226
11613
5806
3871
2903
2323
1935
1787
Fr
0.0014
0.0028
0.0055
0.0083
0.0110
0.0138
0.0165
0.0179
Feed (ipm)
32.0
32.0
32.0
32.0
32.0
32.0
32.0
32.0
RPM
10696
5348
2674
1783
1337
1070
891
823
0.0090
Fr
0.0007
0.0014
0.0028
0.0042
0.0055
0.0069
0.0083
Feed (ipm)
7.4
7.4
7.4
7.4
7.4
7.4
7.4
7.4
RPM
7946
3973
1986
1324
993
795
662
611
0.0082
Fr
0.0006
0.0013
0.0025
0.0038
0.0050
0.0063
0.0076
Feed (ipm)
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
RPM
4278
2139
1070
713
535
428
357
329
Fr
0.0005
0.0009
0.0019
0.0028
0.0037
0.0047
0.0056
0.0061
Feed (ipm)
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
RPM
5806
2903
1452
968
726
581
484
447
Fr
0.0008
0.0016
0.0031
0.0047
0.0062
0.0078
0.0093
0.0101
Feed (ipm)
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
RPM
4890
2445
1222
815
611
489
407
376
Fr
0.0007
0.0014
0.0029
0.0043
0.0057
0.0072
0.0086
0.0093
Feed (ipm)
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
reduce rates when material is harder than listed, when drilling conditions are not optimum, or coolant is not available
rates shown are for drilling into a flat surface and should be lowered using the reducion multiplier when the workpiece is angled or curved
reduce rates 10 to 20 percent when using drills without internal coolant
always use the shortest overhang possible
longer drills may require a spot drill operation to avoid walking on entry
internal coolant required in ISO S and M material groups or when drilling depth exceeds 3xD
Bhn (Brinell) HRc (Rockwell C) HRb (Rockwell B)
angle °
rpm = Vc x 3.82 / DC
ipm = Fr x rpm
up to 30
speed and feed for materials harder than listed
over 30
refer to the SGS Tool Wizard® for complete technical information (www.kyocera-sgstool.com)
https://kyocera-sgstool.co.uk/
13/16
DRILLS
reduction multiplier
speed x
feed x
1.0
0.6
0.7
0.4
193
