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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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