carbide tipped boring bars

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Subject Author Date
carbide tipped boring bars desperado 04-29-2006
Posted by Richard J Kinch on April 30, 2006, 11:45 pm
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 president@carbideprocessors.com writes:

> Probably on our web site.

Yes, that's it:

http://carbideprocessors.com/Brazing/book/

Posted by Tom Gardner on April 29, 2006, 8:15 am
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>
> I bought a set of 3/4 shank carbide inserted boring bars.
> I have two of them with broken tips due various mistakes I made.
> I was wondering if it is possible to get new carbide inserts and braze
> them in.
> I hate to buy a new set as these are short shank boring bars and are very
> handy in some tool setups.
> --
> don paolino

Sure! Also, concider HSS chunks for special uses.



Posted by Bugs on April 29, 2006, 10:31 am
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Yup, I do it all the time for special function bits. Considering the
cost of some of the bits on the market it is hardly worthwhile for
standard bits.
Bugs


Posted by president@carbideprocessors.co on April 29, 2006, 12:01 pm
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It could be brass /bronze which could contribute to the breakage. It
could be silver braze alloy corroded with age.

Sweat the old one out with a torch. Try not to burn the braze alloy.

The only problem may be with the new insert. Not all carbide wets
well.         Put a good amount of flux on the new insert with a cut bit of
wire and heat it. If it flows out well then it is good.

tom


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