Very unusual! beautiful....I can see them welded together as a wall piece...very very interesting!!! SteelyJan38

Rick
We think alot alike,
The texture on the sides is why I am doing this experiment in miniature.
Every bowl has a different texture on the sides, some are serrated, some checkered, some stippled some straight off the bandsaw. I did not get the full effect I was looking for but believe if I use a 2' round disk 1" tall I will get what I am looking for. Then next go to larger scale, like the 4" you recommend.
PS I did not get the expansion out the sides I was seeking but it was close.
SteelyJ
HHMM, now you got me thinking.

Chris Williams

Guisseppe
A few very inspirational pieces on your website. There are a few in the 25 years ago folder that speak to me.
Great work, that staircase vertebrae is larger than I would have guessed by the photo. I am guessing you use a hydraulic press for this work. I used a power hammer for my piece. I will probably just make a hand held die for the larger bowl I do to use with my flat dies.
What I am attempting to accomplish is to get the copper to extrude out the features I created on the sides of the copper, if that makes sense. I in essence want the features on the sides of the bowl to grow.
Not sure its possible but in my mind it should work with a taller piece and more heat.

Chris Williams

the stairs were made with power hammers....I have some bowls that used opening grain as a feature.....I will try to find some pics.....the more sudden the force the greater the bulge....copper may absorb that force though ....steel is better.