ArtMetal

Something you should consider when choosing which method of joinery is what heat will do to the hardness of the copper. If you choose a very hot process for joining, you may find that the hammered leaf shape may loose its hardness at the joint.

If on the other hand you choose a low temperature solder, you may not destroy the hardness you have already forged into the leaf. Note though, that the lower temperature solder usually does not carry the same strength as welding or brazing.

Looking forward to seeing what you've been creating...