Announcement

Collapse
No announcement yet.

Cast aluminum filler?

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • HMW
    replied
    I use 4043 alot [tig] on cast aluminum. Seems to work fine. i have repaired some of the coolest antique toy tractors with this rod, grant it strength is not a big issue, but it seems to weld good. Also repaired several transmission covers/cases also and seems to work good

    Leave a comment:


  • yorkiepap
    replied
    Casting prep....

    Hey swyman,
    I do agree with JonnyTIG regarding filler. 4043 is a bit more forgiving, but 5356 is stronger. I use 5356 95% of the time with the MIG process and 4043 on occasion. Take into consideration, if the casting is over 1/4" thick, much better results will be had by preheating the casting to 250-300 deg.. And the most important factor for a sound weld is the cleanliness of the aluminum. Aluminum is very finicky if there is any kind of contamination on the metal. Wire brushing with a SS brush and acetone vigorously will generally get the metal clean for a good weld joint. Hope that helps a bit.....Denny

    Leave a comment:


  • JonnyTIG
    replied
    You can use either 5356 or 4043. The 4043 may match the casting color better than the 5356, and is also heat treatable if that is a concern. 5356 will produce a stronger weld, however the base metal will most likely be lesser in strength, so there probably wont be any advantage to welding with the 5356.

    Leave a comment:


  • terry welds
    replied
    cast aluminum

    the last time i welded cast alum. it was a tranmisson. and i used er4043 and it seemed to work ok. it is still holding today

    Leave a comment:


  • swyman
    started a topic Cast aluminum filler?

    Cast aluminum filler?

    I have a piece of cast aluminum to weld. Can I use 5356??? If not, which type??
    Thanks, Shane
Working...
X