RE: [CAD_CAM_EDM_DRO] Re: Small taps and dies

Thanks Michael

Link looks interesting, we have all used things like sintered bronze, I
never knew you could get such strength from these processes, then again the
material uniformity would be much better so stresses much more even
throughout the material.

As for fine taps though I am told these are still forged and the thread
rolled into them since uniformity of material isn't good for the stresses
they endure.

All interesting stuff though.



Thanks Mark



Dr. Mark Vaughan Ph'D. B.Eng. M0VAU

Managing Director

Vaughan Industries Ltd, reg in UK no 2561068

Water Care Technology Ltd, reg in UK no 4129351

Addr Unit3, Sydney House, Blackwater, Truro, Cornwall, TR4 8HH, UK.
Phone/Fax 44 1872 561288

RSGB DRM111(Cornwall)

_____

From: CAD_CAM_EDM_DRO@yahoogroups.com
[mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Michael Fagan
Sent: 20 August 2007 21:30
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: Re: [CAD_CAM_EDM_DRO] Re: Small taps and dies



I believe he's referring to powder metallurgy, which is often used to make
end mills and other high-end cutting tools. It's like sintering, but at a
much higher pressure and temperature, which result in a solid and incredibly
durable cutting tool. See http://en.wikipedia
<http://en.wikipedia.org/wiki/Powder_metallurgy> .org/wiki/Powder_metallurgy

On 8/19/07, Mark Vaughan <mark@.... <mailto:mark%40vil.uk.com> com>
wrote:

>
> Hi Andrey
>
> Sintering, I think is when it's made of a powder that is compressed and
> fused by heat, like bronze filters, and alloy pulleys.
>
> I wasn't aware you could do that with taps and drills, never thought they
> would have enough tensile strength.
>
> Learn something new everyday, I'll have to look it up and see what can be
> done, normally I get fine things EDM eroded for a job, but that's not
> cheap.
>
> Thanks Mark
>
> Dr. Mark Vaughan Ph'D. B.Eng. M0VAU
>
> Managing Director
>
> Vaughan Industries Ltd, reg in UK no 2561068
>
> Water Care Technology Ltd, reg in UK no 4129351
>
> Addr Unit3, Sydney House, Blackwater, Truro, Cornwall, TR4 8HH, UK.
> Phone/Fax 44 1872 561288
>
> RSGB DRM111(Cornwall)
>
> _____
>
> .
>
>
>

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