Wayne,

Curious if you ever ran across the idea of using a feed control unit to
minimize or even eliminate a burr while drilling rather than trying to
remove it afterwards?

I get calls from folks looking to do this all the time. We basically sell
them a feed control on the unit we provide so that when the bit is about to
break through, the feed rate either stays exactly the same or even slows
down so the tool doesn't punch through the last part. The burr is then much
smaller or even sometimes gone.

Check out this page:

http://www.autodrill.com/ser2100.htm

Doing this with a multispindle drill head or when holes are far enough
apart, some of our customers do a dozen holes at a time. I suppose the same
thing could be done with the deburr tool depending on how it works.

Here is a seven hole head:

http://www.multi-drill.com/multi-spindle-head-app7.htm

If your client has lots and lots of holes to do (1000 a month is not a lot
to me but may be for him), tell him to find someone who can sell him a
multiple spindle head to attach to his drill press or have him buy a whole
system from someone. He will save a lot of time and make money. If his
production numbers are not great, then it will probably be too expensive...
But he may learn something by talking to the company's application
specialist for free anyhow. Multiple spindle drill heads usually go for
around $200-400 a hole but need to be mounted on a drill press, a Bridgeport
style machine or something similar if not built into an all-in-one system
like this one which is Photoshopped but identical to what we put together
and sold:

http://www.multi-drill.com/multi-spindle-head-app2.htm

No advertisimg meant, just some ideas for you and your cleint... Feel free
to give me a call or leave your number on my machine (number listed on the
web pages above) and I'll be glad to have our application guy call you back
to see if I can help you find a solution.

Regards,
Joe Agro, Jr.
http://www.autodrill.com
http://www.multi-spindle-heads.com

V8013

My eBay: http://tinyurl.com/4hpnc

"Wayne Lundberg" wrote in message
...
Back when I was a practicing Mfg. Eng. at Solar Turbines I did extensive
research into deburring the inside hole made in tubing. I failed to find
anything really earth-shaking.

I'm faced with the problem again in advising a client of mine on how to
deburr the 15 holes he is drilling in 1" od aluminum tubing to create his
telescopic affair for his cargo net for pickup trucks. He bought a neat
deburring tool from McMaster, on my recommendation, and is using it quite
well, but his hand and wrist gets tired after about the 100th hole. He
does
not want to follow the logical step in taking the work to Mexico or China.
He wants his product to be made in the USA.

Any burr left on the inside of the tube screws up the easy telescoping
movement and scratches the inner tube as well.

Anybody have any proven success with this kind of problem?

I told him this is one reason so many manufacturers have gone to Mexico or
China because deburring is really one of those pesky problems requiring
human hands. Of course he could do the work on a CNC machine and maybe we
could find a shop to do it but the cost is going to be enormous when he is
only dealing with a thousand holes a month. Now.

Wayne