Author: CliffCliff Date: Jan 29, 2007 11:13
On Sun, 28 Jan 2007 13:03:15 GMT, "Robert Luck" blueyonder.co.uk>
wrote:
>I used to work at a place where we made 3/32 dia tube with 10 thou wall by
>the forward impact extrusion process. The material was 6062, the dies were
>carbide of a special grade (I wasn't allowed to know what - it was
>proprietory info) and the lubricant was a witches brew of zinc stearate and
>a compound of calcium mixed up with trike into a solution The Aluminium
>slugs were dipped in this solution and then allowed to dry before going t
>the press. This was a high volume process at well over 5,000 tubes a day.
Stearates = soaps?
--
Cliff
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