TRI TOOL INC.
92-0547 Rev. 210906
22
7. CUTTING SPEEDS AND FEEDS
True DIA
RPM for
200 in/min
(5080 mm/min)
RPM for
250 in/min
(6350 mm/min)
RPM for
300 in/min
(7620 mm/min)
.250" (6.4 mm)
255
318
382
.375" (9.5 mm)
170
212
255
.500" (12.7 mm)
127
159
191
.750" (19.1 mm)
85
106
127
1.00" (25.4 mm)
64
80
95
1.25" (31.8 mm)
51
64
76
1.50" (38.1 mm)
42
53
64
2.00" (50.8 mm)
32
40
48
*Cutting Speeds are approximate.
Use 200 surface inches per minute (5080 surface millimeters per minute) for:
Stainless steels in general when no coolant is allowed, all heavy-wall tube and some
chrome/molybdenum steels.
Use 250 surface inches per minute (6350 surface millimeters per minute) for:
Mild steels and some thin wall stainless steels when coolants are permitted and
applied.
Use 300 surface inches per minute (7620 surface millimeters per minute) for:
Aluminum and thin-wall mild steel and tube with coolants.
Содержание 302
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