I have purchased a square bezel forming punch set but I can not
seem to form the bezel without splitting the the metal even though
I have anealed it. I am trying to form a bezel for a 12mm square
stone. I really would appreciate some feed back.
Bezel sets (block and punch) are used to true up shapes, not to
fabricate them. In your situation there are 3 ways to go (probably
more, but I can only think of three right now).
The least expensive but technically demanding is to form square
setting by hand, and use block to correct shape irregularities.
Soldering joints must be placed in the middle of sides and not in the
Form round bezel first using pliers and mandrels and use the
square bezel block to obtain final shape. Size of round bezel must be
calculated precisely. Perimeter of square and circumference of round
bezel must be equal. I am usually asked at this point,- why I
recommend round versus square with rounded corners. While it is
possible to form rounded corner square truncated cone by hand, (sorry
for mathematical nomenclature), preparing such a template is not
trivial. Starting with round is easier and results are good enough.
That is not to deny that template calculations will be the only way
to go on some occasions.
Purchase round bezel block and punch and proceed like in method
This method requires additional investment, but it is the most
economical from material waste point of view.
If you do not have experience in forming shapes using pliers and
mandrels, and/or not very sure how to correctly use bezel blocks, I
recommend my DVD Coronet Cluster.
You may be able to glimpse what you need from introductory clip, or
you may want to purchase the dvd.