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Tractor Talk Discussion Board |
Re: Welding Cast
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Posted by george md on March 12, 2005 at 22:52:25 from (65.216.222.156):
In Reply to: Re: Welding Cast posted by rej on March 12, 2005 at 21:30:59:
Cool it you two before the madam gets out the
skillet.
The welding of castings that are to be loaded
or stressed, by arc welding is a bad idea as
the internal stress created by the weld material
cooling are nearly impossible to relieve. Even
if you preheat the work ,when it cools the two
different materials contract at different rates
making the repair weak.
If you repair the break using oxy/acet and cast
iron rods , the weld material and the base material
are the same and therefore contract at the same
rate.
link below will get you to my web site and in
the site is a link to many more pictures of cast
iron repair. george
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