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welding heat treated cast aluminum

welding heat treated cast aluminum

welding heat treated cast aluminum

(OP)
After welding (GTAW) A356 T6 aluminum casting is it necessary to heat treat the casting again to obtain T6 properties.  This is not foundry welding but a repair of a cracked casting that is already in the T6 condition.  Will the casting ever reach T6 during room temperture aging?  How long will it take?

RE: welding heat treated cast aluminum

I recently read an articial in the Welding Journal on welding of heat treatable alumunum and the post weld-heat treatment of different alloys.  What is the chemical    make-up of the alloy you are trying to weld?

RE: welding heat treated cast aluminum

(OP)
A356 alloying elements, 7% silicon and 0.03% magnesium.

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