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Roll-A-Matic Custom Design Tools
Order Custom Designed Tools
Taper and Flat Surfact
Tools - Roll-A-Matic taper tools are designed to roller burnish uniform
tapered surfaces and are available for either
internal or external applications. The pre-finish of the tapered surface must be
controlled and the taper of the angle must be held prior to burnishing as there
is no angular adjustment in the tool. Roller burnishing does not displace
sufficient material to correct any significant angular error.
Machined flat surfaces that are symmetrical with the center-line of the part can
easily be roller burnished to obtain high quality finishes with ROLL-A-MATIC
flat surface tools. Where surface alignment is inconsistent, a float can be
built into the tool to ensure that the entire machined surface is burnished.
All
taper and flat surface tools require applied thrust in order to generate the
pressure required to burnish their respective surfaces. Both controlled
burnishing pressure and sufficient dwell time are necessary to obtain the
desired finish. To prevent over-burnishing, the burnishing pressure must be
controlled through a pre-set hydraulic or pneumatic feed unit or through a
spring-loaded overtravel adapter for a mechanical feed unit.
Roll-A-Matic taper
and flat surface tools are custom designed to burnish any angular surface. Tool
size is determined by the part specifications. Therefore, a part print is
required before a tool can be designed and built.
Internal Expanding and External Contracting Tools - For
applications with wide size variations, Roll-A-Matic offers internal expanding
or external contracting tools. Size variations from part to part can be roller
burnished without slowing production. All Roll-A-Matic expanding and contracting
tools feature our spring-loaded, lock pin adjustment assembly to prevent over
rolling or damage to the tool in a no-part situation.
Expanding and contracting tools are custom designed for each application and can
be made to fit any spindle. These tools are pressure controlled and will be
designed for either a mechanical or a hydraulic feed unit. All expanding and
contracting tools are engineered to meet your specifications; and complete
information, including a part print, is required before a tool can be designed
and built.
Combination Tools - Double-duty combination tools are designed to
roller burnish two surfaces simultaneously. A combination I.D. and O.D. ROLL-A-MATIC
burnishing tool eliminates the need for an extra work station by roller
burnishing both the part O.D. and I.D. in a single pass. The tool features
independent I.D. and O.D. adjustment assemblies to ensure that the size and
finish requirements of both surfaces can becontrolled and adjusted without the
use of any additional tools and without removing the tool from the spindle.
Multi-diameter ROLL-A-MATIC burnishing tools are designed to burnish two or
three surfaces at once. These tools eliminate the need for multiple passes to
finish bores with two or three different size diameters. For large diameter
applications each burnishing head can be individually adjusted. For smaller
diameter tools a single adjustment assembly will control size equally for each
working diameter. Multi-diameter burnishing can be designed for either internal
or external applications and for a variety of work lengths. In order to ensure
an accurate tool designed to meet your requirements, a part print should be
supplied along with the request for quotation.
Spherical Tools - The benefits of roller burnishing can be applied
to contoured surfaces with Roll-A-Matic spherical burnishing tools. Convex and
concave surfaces are work hardened and roller burnished smooth in seconds to
ensure a precise fit between mating parts and to extend part life.
The spherical radius of a differential pinion gear is roller burnished to a
finish of better than 5 AA by a Roll-A-Matic spherical tool. Prior to roller
burnishing the surface was ground and polished to achieve the desired finish.
What had taken minutes is now done in seconds and the performance
characteristics of the part have been enhanced. Used on a multi-spindle screw
machine the Roll-A-Matic spherical tool finishes over 500 pinion gears per hour
for a major manufacturer. |
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