[modeleng] Re: Question

I have brazed HSS bits onto mild steel shanks, without any trouble.   The 
heating did not appear to affect the hardeness of the tool bit.

Cheers!

Hubert

----- Original Message ----- 
From: <peter.chadwick@xxxxxxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: Friday, February 23, 2007 9:24 AM
Subject: [modeleng] Question


>I need to cut some internal threads. Too big a diameter for a tap, of
> course. Now the textbooks show nice tools with a cutting tip at right
> angles to the shank, which I naturally don't have. The question is this:
> Can I take the odd bits of HSS steel in stock from broken taps, end mills
> etc, braze onto mild steel shank, and grind up, without the HSS losing its
> qualities?
>
> Admittedly, there's only 2 threads to cut, in brass, so the tool doesn't
> need to be that great in terms of wearing qualities. But have any of you
> experience in brazing HSS?
>
> Peter Chadwick
> Swindon
>
> MODEL ENGINEERING DISCUSSION LIST.
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