Tri Tool 302 Tube Squaring - Manual (Page 11)

11
Model 302 Tube Squaring Machine
92-0547 : Rev. 140610
WARNING:
NOTE:
OPERATION
GENERAL
The handle of the motor may be rotated to another position as necessary to fit into
some situations.
Loosen the cap screw in the clamp bracket and rotate the motor handle to the de-
sired position.
Tighten the cap screw before turning the motor on.
Select the Tool Bit required to machine the tube ends square and flat as required for
an autogenous weld joint.
The use of dull or improperly designed Tool Bits or Tool Bits not manufactured
by Tri Tool Inc. may result in poor performance and may constitute abuse of
this machine and therefore void the Tri Tool Inc. factory warranty.
General Guide Lines for Selecting a Tool Bit
Selection of the Tool Bit should be based on tubing material, the tubing size,
and how critical is it to have a near burr free end. The DURABIT 1, DURABIT
2 and DURABIT 3 Tool bits provide near burr free ends (measured burrs less
than 0.004" or 0.1mm) on most materials.
The DURABIT 1, DURABIT 2 and DURABIT 3 were developed for optimum
burr conditions on electropolished austenitic Stainless Steel tubing such as
316L and to run at higher speeds than other tube squaring tool bits. Electro-
polished stainless steels have a micro-thin surface on the ID, which is high in
Cr and Ni. This surface is soft, but tough and difficult to cut without a burr.
The Part Number for a DURABIT 1 is “DURBIT1”, DURABIT 2 is “DURBIT2”
and DURABIT 3 is “DURBIT3”.
For carbon steel tube with a wall thickness greater than 0.083" (2.24mm).
Contact your Tri Tool representative for Tool Bit recommendations.
M-42 Tool Bits are available for use with the exotic alloys where the high heat
resistance is required to avoid burning the cutting edge of the Tool Bit. Call
your Tri Tool representative for recommendations.