37
•
This chart is provided as a reference to give starting point recommendations.
•
Contact Slater Tools for the best solutions on your specific application.
•
Larger external applications may require higher speeds or feeds.
•
Slater Tools can also assist you with applications in plastics.
•
In all materials, the smaller the broach diameter the lighter the feed should be.
•
Lower feed rates give better workpiece finish. However, feed rates under 0.004 ipr can cause
chips to lose flowing motion, creating excessive end loading pressure.
•
Use rapid traverse when retracting off or out of a part.
•
Mimimum and Maximum Conditions:
Speeds 400-3500 RPM (revolutions per minute)
Feeds 0.003-0.009 ipr (inches per revolution)
Common Workpiece Materials & Form Sizes
Recommended Speeds & Feeds
Aluminum
(6061)
Form Size
(
in.)
Form Size
(
mm)
F.C. Brass
(360)
Cold Rolled
(12
L14)
Alloys
(4140)
S.S.
(303
SS)
Super Alloys,
S.S. 400 Series,
Titanium, etc.
(17-4
PH, 18-8PH...)
Speeds Feeds
(
RPM) (ipr)
2-3/8
60.325
Softer
Material Hardness
Harder
2
50.800
1-3/4
44.450
1-1/4
31.750
1
25.400
7/8
22.225
3/4
19.050
5/8
15.875
1/2
12.700
3/8
9.525
1/4
6.350
1/8
3.175
1-1/2
38.100
1-1/8
28.575
15/16
23.813
13/16
20.638
11/16
17.463
9/16
14.288
7/16
11.113
5/16
7.938
3/16
4.763
1/16
1.588
1/36
0.706
Speeds Feeds
(
RPM) (ipr)
Speeds Feeds
(
RPM) (ipr)
Speeds Feeds
(
RPM) (ipr)
Speeds Feeds
(
RPM) (ipr)
Speeds Feeds
(
RPM) (ipr)
600
600
600
800
1000
800
1200
1800
2000
900
1400
1800
2000
700
1200
1300
2000
800
1200
1500
2250
900
1400
1700
2500
0.009
0.008
0.008
0.007
0.005
0.003
0.005
0.004
0.004
0.006
0.005
0.005
0.004
0.007
0.006
0.006
0.004
0.007
0.007
0.006
0.005
0.008
0.007
0.007
0.005
TECHNICAL SUPPORT
PHONE:
(586) 465-5000
•
FAX:
(586) 465-3030
