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Reaming bronze guides with a Carbide Reamer

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Reaming bronze guides with a Carbide Reamer

Postby VW Racer » Sun Nov 14, 2010 7:08 pm

Hi Just wondering what techniques or cutting speeds you guys are running when coring out Bronze guides for Guide liners,
I'm working with a K-line black Beauty reamer 5/16 and am set up on a mill for my valve seat work.

Cheers
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Re: Reaming bronze guides with a Carbide Reamer

Postby airflowdevelop » Mon Nov 15, 2010 8:14 am

what lube?

what RPM?

I assume you are letting the reamer pilot itself even when using the mill? Are you useing centering cones?
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Re: Reaming bronze guides with a Carbide Reamer

Postby VW Racer » Tue Nov 16, 2010 4:12 pm

Hi I haven't actually made any cuts yet, I have some Regis Bronze reaming Lube, but not sure what speed I should try.

Will the lube hold the chips and cause the reamer to bind?

I was just going to center milll head to the guide bore the guide then lock the head down. Lower the table, install the reamer, raise the table and cut.

Thanks

Darren
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Re: Reaming bronze guides with a Carbide Reamer

Postby Dave Koehler » Tue Nov 16, 2010 4:15 pm

VW Racer wrote:I was just going to center milll head to the guide bore the guide then lock the head down. Lower the table, install the reamer, raise the table and cut.

Thanks

Darren

Uhh, no.
Those kinds of reamers have to find their own center. Collet mounted is going to create all kinds of grief. I suppose a sloppy adapter/driver or universal joint would allow the use of the spindle.
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Re: Reaming bronze guides with a Carbide Reamer

Postby VW Racer » Wed Jan 12, 2011 7:59 pm

Just to update I am running the reamer with with an air powered hand drill allowing it to pilot itself at about 500 RPM free spin and it cuts just great.
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