On 8/7/17 7:36 AM, Joseph Gwinn wrote:
On Sat, 29 Jul 2017 22:49:10 -0400, [email protected] wrote:
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Message: 2
Date: Sat, 29 Jul 2017 20:57:56 -0400
From: Scott McGrath <[email protected]>
To: Discussion of precise time and frequency measurement
<[email protected]>
Subject: Re: [time-nuts] Machining some aluminum help!
Message-ID: <[email protected]>
Content-Type: text/plain; charset=us-ascii
Kerosine is a better tap lube for Aluminum as it is more persistent
and less flammable
NO. Kerosene is *not* a good lubricant for _forming_ taps.
Kerosene (WD-40) and alcohol are good lubricants for _cutting_.
For _forming_, one needs something very viscous, something that
lubricates at very high pressures, at the yield strength of the
material being formed.
Like Molybdenum Disulfide or STP?
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