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Posted by Jerry Wass on October 4, 2007, 10:08 am
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SteveB wrote:
> My BIL's tractor has a bent ripper arm. The whole thing is 5/8" thick x
> 2.5" wide flat bar, and is about 17 inches long, slightly curved. It has a
> hardened tooth on the end held on by a pressed in pin, looks like. Along
> it, it has notches to adjust the cutting depth.
>
> He has bent it, but not too bad. It's going to take some serious heating to
> straighten. My question is: Once I get it hot enough to bend, and bend it,
> what do I do afterward? Let it cool gradually? Quench in oil? Keep in a
> hot oven for a time?
>
> I don't want to soften it so that it bends easier. It probably was hardened
> in some way from the factory.
>
> Thanks in advance.
>
> Steve
>
>
He bent it cold---you straighten it cold---5/8" X 2-1/2" is not hard to
straighten in a good press.
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> 2.5" wide flat bar, and is about 17 inches long, slightly curved. It has a
> hardened tooth on the end held on by a pressed in pin, looks like. Along
> it, it has notches to adjust the cutting depth.
>
> He has bent it, but not too bad. It's going to take some serious heating to
> straighten. My question is: Once I get it hot enough to bend, and bend it,
> what do I do afterward? Let it cool gradually? Quench in oil? Keep in a
> hot oven for a time?
>
> I don't want to soften it so that it bends easier. It probably was hardened
> in some way from the factory.
>
> Thanks in advance.
>
> Steve
>
>