Tri Tool 304 Tube Squaring - Manual (Page 16)

16
TRI TOOL INC.
92-0749 : Rev. 110328
CUTTING SPEEDS AND FEEDS
The following table shows RPM to obtain specified Tool Bit surface cutting speed
on the surface of the pipe.
Use 200 surface inches per minute (508 surface centimeters per minute) for:
Stainless steels in general when no coolant is allowed, all heavy-wall tube
and some of the chrome/molybdenum steels.
Use 250 surface inches per minute (635 surface centimeters per minute) for:
Mild steels and some thin wall stainless steels when coolants are permitted
and applied.
Use 300 surface inches per minute (762 surface centimeters per minute) for:
Aluminum and thin-wall mild steel and tube with coolants.
BASIC FEED RECOMMENDATIONS
Use very light feed for initial cutting or until a continuous cut is established.
This is very important for longer Tool Bit life when cutting through flame cut or
out of square tube ends.
Use a feed rate .003” to .006” (.08 mm to .15 mm) per revolution thereafter, to
establish a continuous chip cut.
RPM for
200 in/min
(5080 mm/min)
RPM for
250 in/min
(6350 mm/min)
RPM for
300 in/min
(7620 mm/min)
1.00" 25.4 mm 64 79 95
2.00" 50.8 mm 32 40 48
3.00" 76.2 mm 21 27 32
4.00" 101.6 mm 16 20 24
4.50" 114.3 mm 14 18 21
Tube Size