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Re: Welding cast iron

To: <mgs@autox.team.net>, <tab@penworks.com>
Subject: Re: Welding cast iron
From: "William Eastman" <william.eastman@medtronic.com>
Date: Fri, 05 Nov 1999 14:39:16 -0600
Tab,

Actually, I was talking about stress in the part but hey, who can argue
with your impeccable logic?!

>>> Tab Julius <tab@penworks.com> 11/05/99 01:42PM >>>

I've found in general that beating objects with hammers does reduce
stress,
so this sounds like a valid solution!

At 01:20 PM 11/5/99 -0600, William Eastman wrote:
>
>snip
>We used to weld a lot of cast iron at our machine shop.  Use a normal
>arc welder and nickel rod.  The key is to beat the weld with a hammer
>during the cooling process to reduce residual stresses.  Otherwise
you
>will get another crack near the original.
>snip

Regards,
Bill

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