Updated: 2/11/19, 2/8/17
Nancy LT Hamilton
Tools used on this page:
The Rolling Mill
Rolling Metal Flat
I just watched your video about the Pepetools 4:1 mill. I am curious if I can flatten 12 gauge to 18 copper wire on it? I don’t want it completely flat……Will hammer it after flattened a bit. I was at Rio Grande last year and the gal out front said it wouldn’t work and techs were in a meeting…
You can make the metal as thin as you want. If you start with 12 gauge, you can roll it through until it is 34 gauge and even thinner, if you take other steps. You can also roll 12 gauge through and stop when it’s 11.5 gauge. It all depends on how often you run it through, how tightly you compress the rollers each time, and how often you anneal the metal.
You can also pattern metal with a rolling mill and create ovals from round shapes and rectangles from square. You can taper wire too. There are many uses.
When you say you don’t want it “completely flat” do you mean you want a curve on it or a point? The flat wheels on a rolling mill, only flatten wire or sheet metal. The areas that are for making wire, the grooved areas, make whatever shaped wire the mill is set up for (“D” shaped or 1/2 round, round, triangular, and square. Not all mills make all shapes. Most make 1/2 round. The gauge allowable for wire creation depends on the size of the wire rolling section. I chose one rolling mill’s specs as an example: three “D” grooves will roll 4mm, 3mm, 2mm, 1.5mm, 1/2 round wire.
I use a drawbench to create differently shaped wire. See below for some links on this topic.
How to Roll Metal Through the Rolling Mill
“Question: I have a book that tells you to turn the metal end over end while rolling it. Does end over end mean leading edge over to trailing edge or left side over to right? In the same book, it tells you that a wavy sheet means you changed direction without annealing first. I cannot find anywhere on the internet where you get tips on how to roll metal correctly. Maybe I’m asking the wrong search questions.”