Making A Cone From Sheet Metal

Here is one way to make a cone from flat stock.

Making a cone from sheet metal.

This white paper is about cones of metal. There are many reasons that you might need to bend a cone from sheet metal. View the cone instructions below to learn how to manually layout the flat pattern for a truncated cone in single or multiple gore sections. By determining the length of the slanted side and the circumference at the wide end of your cone you can quickly and easily produce a cone exactly the size you want it to be out of a flat piece of sheet metal.

The cone has a diameter at the top smaller than the diameter at the bottom and to accurately trace the shape onto sheet metal you need to make a template out of construction paper. I used aluminum sheet coil but you could use paper or any flat material. For example cones of carbon steel s235 s355 or stronger kinds of steel such as s460 and s690. You can find cone calculators online.

To make a solid cone trace the bottom of the cone onto a spare sheet of material then cut the circle out. Once the size of the cone has been determined you can quickly and easily cut out the sheet metal before fastening it together using a rivet gun to permanently set it into a conical form. Rolling a metal cone out of sheet metal may be a little easier than you may think. If making a felt foam plastic or metal cone use hot glue instead.

Building a cone out of sheet metal is a simple procedure. Bending sheet metal is easier than you might first expect so do not be. It allows you to determine either the size of raw material needed or the number of gore sections to fit on your available material. The curved steel cone calculator from chicago metal rolled products makes it easy to find the precise curved steel cone dimensions you need.

But building a cone to exact sizes and specifications requires using mathematics. Metal cones are good for finishing chimneys topping off certain types of outdoor fire and grill buildings and occasionally for decor purposes.