Rewelding of 17 - 4 PH
Rewelding of 17 - 4 PH
(OP)
I have a complex structure that was assembled by electron beam welding 17-4PH sheet (0.090 inch thick) in the corners. The sheet is now in the H925 condition. The welds were supposed to be full penetration welds, but turned out to lack full penetration. They are around 0.050 - 0.070 inch penetration. Due to the welded and assembled configuration, it is impossible to EB weld at this point unless special fixturing were made. This welded component is ugently needed to be assembled on another structure.
Does anyone have any idea or suggestion as to what could possibly be done to repair or improve the weld configuration without having to reheat treat the component? Is there a low temperature braze that could be used to fill in the unwelded fillet from the back-side of the weld? GTAW would produce a heat affected zone that would have to be reheat treated (or would it?).
Thanks for any help on this.
Paul
Does anyone have any idea or suggestion as to what could possibly be done to repair or improve the weld configuration without having to reheat treat the component? Is there a low temperature braze that could be used to fill in the unwelded fillet from the back-side of the weld? GTAW would produce a heat affected zone that would have to be reheat treated (or would it?).
Thanks for any help on this.
Paul





RE: Rewelding of 17 - 4 PH
If you do need the strength, welding w/o full HT, including sol. ann. at high temp. won't work.
RE: Rewelding of 17 - 4 PH
RE: Rewelding of 17 - 4 PH
RE: Rewelding of 17 - 4 PH
If you know that the part is mission critical and really needs the strength that you've obtained using 17-4 and H925 then there is really no way that I cna see around re-doing the whole bit.
nick
Nick
I love materials science!
RE: Rewelding of 17 - 4 PH
Paul
RE: Rewelding of 17 - 4 PH
RE: Rewelding of 17 - 4 PH
RE: Rewelding of 17 - 4 PH
RE: Rewelding of 17 - 4 PH
RE: Rewelding of 17 - 4 PH
Nick
I love materials science!