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| Ev Archive for February 2001 |
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| 1152 messages, last added Wed Aug 08 18:51:05 2001 |
[Date Index][Thread Index]
Re: 4130 welding
>Maybe less than "scientific"... weld a bit and grab a hammer and beat the
>stress out of it!! (I realise this is a "rough" method...but it sure
>reduces warpage!)
>
-snip-
>> If you are going for the absolute top strength, you must heat treat the
>> entire completed structure in a tempering oven. This relieves all the
>> thermally-induced stress in the heat-effected zones, but also converts
all
>> the martensite back to austenite to restore the full toughness of 4130.
Hammering 'might' relieve the stress, but it won't return the temper lost
during welding. Heat-treating it is the only method I know of that will do
that, though I'd love to hear about a simpler method that could be done in
the garage.
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