One of the most nagging problems in
manufacturing is the deburring of cross-drilled holes. Burrs are always created
where the crossholes exist. Getting at the burrs, let alone removing them, can be
a real challenge.
A handful of methods are commonly employed for dealing with these burrs:
sandblasting, extrude hone, and of course, manual deburring with knives,
abrasive stones, brushes, burs, etc. While effective to varying degrees,
these methods have their drawbacks. They're all off-line processes, i.e. they are a
separate operation. Parts need to be handled and/or moved from machining to deburring.
Often deburring is an out-sourced operation. The extra handling, movement, queue, transport,
etc. represent non-value added operations. Sandblasting, extrude hone, and similar devices
involve capital investment, often substantial, or again, outsourcing. Manual deburring, as
everyone knows, is very labor intensive, as well as craft sensitive.
J.W. Done Corporation developed the ORBITOOL in response to this situation. It is the only
deburring tool capable of in-process deburring of cross-drilled holes. The tool is used just like
any cutting tool found on a lathe turret or tool magazine of a milling machine. It removes burrs
specifically from the intersection of the crossholes. The operation can be tailored to leave a minimally
broken edge or a blended radius.
EASY TO TRY : Evaluating ORBITOOL with Manual Lathe
First-time users are strongly encouraged to go through a deburring exercise on a manual lathe in order
to 1) become familiar with how the tool operates, and 2) see first-hand what the tool can do.
We suggest a manual lathe for this exercise, preferably one not involved in production, as it makes
sense not to tie up a piece of production equipment when trying out a new process. Most shops have
a manual lathe sitting idle somewhere.
Setting up a manual lathe for using ORBITOOL use is straightforward and clearly illustrates the
principles of operation, i.e. the tool moves required, tool and part rotation, feeds and speeds,
and ORBITOOL motion during operation.
We are confident that you will be impressed with the tool and will want to introduce it into your
production. Contact us for help with specific process parameters. We can also provide a CNC
program macro to help get you up and running with ORBITOOL.
If however, after completing the exercise, you are not satisfied with the results, you can return
the tool to J.W. Done Co.
SOLUTION : Videos
Orbitool Manual Deburring Microscope High Resolution(Download)
Please include credit
references with initial order. We maintain an inventory of standard tools and can usually ship
the same day. Our standard procedure is to ship UPS ground, insured, and add this to the invoice.
If you have special shipping requirements, be sure to specify them at the time your order is
We also accept MASTERCARD, VISA, & AMERICAN EXPRESS.
Non-standard tools are quoted upon request.
Buy from your preferred tool supplier.
Have your preferred supplier contact us.
We have a true success story with one of our customers. We had
for years sold them carbide burrs to deburr their parts. They
switched to the ORBITOOL and are so happy with the new tool they
went out and found us a customer to buy the rest of the carbide burrs
so that they wouldn't have to use them.
Now all we stock for this customer is ORBITOOL.
Ted Warren, General Manager, John M. Allen Company
I have been using the J.W. Done deburring system for about two years now as a stand-alone
system for deburring the intersections of titanium tees and elbows. These parts require a
controlled radius at the intersections with no hand burring allowed. This process was
previously accomplished using electrochemical deburring, which required extremely
complicated tooling and the process was at times not under control. Since switching to
the J.W. Done system we have a perfectly controlled process, no intricate tooling to
manufacture, long tool life and very short setup times.
We are currently trying to implement this system into our everyday deburring system by
either attaching the deburring equipment to our CNC's or building stand alone systems to
run simultaneously with our machines.
Rich Drysdale, Aerofit Inc.
"Bosch-Rexroth of Fountain Inn, South Carolina is a builder of hydraulic pumps for the off-road industry. It is extremely critical that the finished products maintain a high level of cleanliness for correct performance in the field.
Cross hole contamination has been a large problem with the production of these components. Because of this problem, the Engineering Department has been looking for a tool that would quickly and safety remove burrs from cross-hole drilled holes in castings produced, without damaging any entities between the cross hole area and outer casting surface.
Bosch-Rexroth of Fountain Inn, South Carolina has been using the Orbitool since late winter of 2007. Once our operators understood the proper use of the tool, they found the tool to be extremely effective on both housing and port block castings. In early winter of 2007, only (1) machine cell worked with and tested the tool. Today the tool is used in ten different areas and Bosch-Rexroth Engineers are seeing additional areas thee tools can and will be used in the near future."
William J. Klein, Manufacturing Engineer, Bosch-Rexroth.
Implementation Guides : CNC Mills and Lathes
If you have not already done so, download and familiarize yourself with the Users Guide, the
Programming Guide, the Macro Instructions and the macro itself.
The fundamental motion of the tool is helical. The machine tool controller should be capable of
helical interpolation, i.e. simultaneous 3-axis motion control. For mills without helical
interpolation capability, a helix can be crudely approximated by combining circular interpolation
with step-wise advancement of the tool in the Z-axis.
We offer a macro written in FANUC Macro B. This macro can be adapted to other controllers
by knowledgeable programmers. Customized macros can be provided as well. Contact J.W. Done for
With lathes the helical motion is accomplished by offsetting the tool axis with respect to the
axis of the hole, then advancing the tool in the Z-axis. Lathes with live tools are easiest to
outfit with ORBITOOL deburring tools. Lathes without live tools can be fitted with moderately priced
devices to run ORBITOOL deburring tools. The devices are either coolant- powered or driven by
a motor and a flexible-shaft. Contact J.W. Done Co. for details.
Manual deburring is readily accomplished with ORBITOOL deburring cutters mounted in electric hand grinders (air grinders are not recommended-the rpm's are too high). We offer the unit shown below, part number 30004.
The patented design of ORBITOOL cutters provides a distinct advantage over conventional burrs. With ORBITOOL cutters it is much easier to control the deburring. Conventional burrs will remove material anywhere they touch the surface of the workpiece. Accidental/unintended contact damages the workpiece resulting in scrap or rework. With ORBITOOL cutters material removal occurs ONLY at the edge of a workpiece - where the burrs are! The disk on the end of the cutter prevents the tool's cutting edges from contacting the surface of the workpiece until the tool encounters an edge. Once the disk passes over the edge, the cutting edges can contact the workpiece and remove material. Moving the head of the tool back and forth over an edge is how you deburr with ORBITOOL cutters.
Because of its unique design, the results obtainable with ORBITOOL cutters will be superior to other hand deburring methods. As with other manual methods though, the results still depend on the skill and attention of the operator.
Safety is of paramount concern when deburring manually with any rotating cutting tool. Spinning any tool, especially one with a flexible shaft, in an uncontrolled fashion at high speeds is inherently dangerous. A fundamental feature of ORBITOOL cutters is the flexible shaft. This feature can be extremely hazardous when the cutter is used improperly.
With ORBITOOL cutters control of 3 factors is critical to safe operation: speed (tool rpm), shaft length, and contact or "engagement" with the workpiece.
SPEED: It is difficult to provide exact safe speeds for each size cutter as there are several variables involved. In general, smaller cutters can be used safely at higher rpm's than larger cutters. With ORBITOOL cutters use the lowest rpm that provides acceptable results. Charts indicating generally safe speeds for each size cutter are provided below. NOTE: the charts provide guidelines only-the user assumes all responsibility for determining the safe cutting speed (rpm) for a given situation.
SHAFT LENGTH: In general, shorter cutters can be used at higher rpm's than longer cutters. With ORBITOOL cutters it strongly advised the shaft of the cutter be trimmed as short as possible while still permitting the tool head to reach the edge to be deburred. NOTE: the user assumes all responsibility for determining the optimum safe length of cutter for a given situation.
CONTACT or WORKPIECE ENGAGEMENT: With ORBITOOL cutters it strongly advised that if the tool is spinning, the head of the cutter should be in contact with the workpiece. When deburring internal features though, it is generally sufficient that the head of the tool be fully inserted into the opening before the tool is spun.
FAILURE TO OBSERVE THESE PRECAUTIONS MAY RESULT IN CATASTROPHIC FAILURE OF THE ORBITOOL DEBURRING TOOL, RESULTING IN POSSIBLE INJURY TO THE OPERATOR AND BYSTANDERS, AS WELL AS DAMAGE TO THE WORKPIECE AND EQUIPMENT IN THE AREA.
All other customary precautions associated with using cutting tools in powered hand tools must be observed as well. These precautions include, but are not limited to: use of guards, safety apparel (eye wear, face shields, hair nets, etc.), electrical safety, etc. SAFE AND PROPER USE OF ORBITOOL DEBURRING TOOLS IS THE RESPONSIBILITY OF THE USER.