TPT March 2016

70 / 192

68 MARCH 2016
T E CHNOLOG Y
Tube end-finishing rotary tools
FOR manufacturers of
tubing products, or those
who manufacture products
with tubing components,
Severance Tool has developed
a line of tube end finishing
rotary tools that can de-burr,
form or chamfer as required
by application needs.
The tools are designed
to finish both the inside and
outside diameters of tubing
ends in a single operation,
and many feature adjustable,
two-piece construction to
accommodate work on same-
size tubing having varying wall
thickness ranges.
Depending upon the application, other
features can include Chatterless™ tooth
geometry that alternates tooth cutting
angles to eliminate resonant vibration
from the tool and workpiece for smooth
finishes, and Severance’s exclusive
Grayhone™ finish that provides cutting
edges that are ready to work, with no
break-in period required.
Among the tools offered is a full line of
tube de-burring tools available in high-
speed steel or carbide construction.
These tools, while providing a 30° inside
chamfer and a 45° outside chamfer, are
designed for light duty, to break sharp
edges of both the inside and outside
diameter simultaneously. They feature
tooth geometry with a shearing cutting
action for fast cutting that prevents
loading of chips. The tools can be
reground numerous times for long
service, and operate in speed ranges of
50 to 200rpm.
The outside ring or member is
adjustable, secured by screws, to
provide various outside edge break
sizes and compensate for different
wall thicknesses within a given tube
diameter range.
Tube de-burring cutters are available
in standard sizes for 1/8" outside
diameter (1/16" inside diameter) to 21/4"
outside diameter (2" inside diameter)
tubing, and with a variety of shank
styles.
Tube end chamfering mills provide
the same shear cutting action and
adjustable outside ring as the de-
burring cutters, and with Chatterless
angle geometry are designed for
heavy-duty cutting to machine precise,
smooth 45° outside diameter and
30° inside diameter chamfers in
applications requiring easy assembly
with other components. Chamfering
mills are available in sizes for pipe and
tubing ranging from 3/16" to 21/2" outside
diameters.
The tube end forming cutters machine
both an inside diameter and outside
diameter radius, establishing a smooth,
rounded end for applications
where tubing may be exposed.
A selection of high-speed
steel and carbide tools are
available in sizes for tubing
ranging from 1/8" to 21/2" outside
diameters.
Each outside diameter size
is complemented by a range of
wall thickness or gauge sizes
to accommodate most popular
tubing applications.
For all three types of tube
end finishing tool, standard
sizes are typically shipped
with same-day service.
Severance also provides
an application-specific design and
manufacture service, including custom
size, chamfer angles, and forming
characteristics.
Single cutting action (inside diameter
or outside diameter) chamfering tools
are also available, and Severance
offers a wide range of tool styles and
sizes for de-burring holes through tube
walls.
Other Severance tools include 3N1 ®
combination countersink/drills, Midget
Mills® rotary files and burrs, inside and
outside de-burring and chamferingmills,
Micro-Reamers™, electrode dressers,
double-end countersinks, Chatterless
countersinks and adjustable stop
countersink units, stop countersink
cutters, and a variety of hand-operated
finishing tools.
Severance Tool Industries, Inc –
USA
Fax: +1 989 777 0602
Email:
Website:
Tube tools from Severance