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How to Cut, Choose and Bend Sheet Metal

Thinking of creating an enclosure for your latest project? Or perhaps you’re operating on a a huge robot to terrorize the community? Chances are, sheet metal will perform a part. Sheet metal comes in all way of kinds and sizes. Here are a few tips and methods to to obtain that shiny sheet in to your preferred shape.


Bending sheet metal can be difficult, but using the right device it’s simple. Those who work with it frequently are likely to have a sheet metal bending brake in their own workshop, yet this device can be a bit costly for the hobbyist. Thankfully, there really are a few wallet-friendly alternatives that can assist you get the work done.

Using the edge of your work-bench, a length of wood, 2 clamps, and a mallet, you can style a rudimentary bending brake. Mark a bend line and place the sheet metal on the edge of your bench. Next place the wood parallel and somewhat behind the bending line. Clamp the wood at the top of the metal to the work-bench. Finally, bend the sheet up by hand to the angle preferred. If you would like a sharp 90┬░ bend, tap across the crease using a mallet.

TIP: For small bits of metal, you can mimic the process explained around the left by clamping the metal between wood blocks in a vise, then hammering them over.

TIP: For small bits of metal, you can mimic the pending process by clamping the metal between wood blocks in a vise, then hammering them over.


1 of the most significant decisions whenever using sheet metal is determining what thickness you’ll need. Quite similar to wire, sheet metal thickness is measured in gauges, using a greater number indicating a thinner sheet. To calculate the thickness, you can use a sheet metal gauge, that may show you thickness in both gauge number and thousandths of an inch. 1 significant note, nevertheless, is that ferrous and non-ferrous sheet metals of the same gauge have diverse thicknesses, s O you’ll require 1 gauge for ferrous metals, and 1 for non-ferrous.


Many diverse resources reduce sheet metal, and every has its own strengths and weaknesses. Here are a number of the much more common tools, nevertheless they re-present only a small number of alternatives.

Band Saw

Together with the suitable blade, reducing sheet metal on a bandsaw is pretty simple. Cutting metal demands slower blade speeds than slicing wood, but a lot of band saws have multi-step pulleys for transforming the blade velocity.
Cutting Aluminum having a Table Saw

It may sound insane, but you can minimize sheets of aluminum on a dining table observed. Ensure that you use a60-tooth (or even more) carbide-tipped blade, and wax the blade to make certain the cut is nicely lubricated. Go gradually, continue using the utmost caution, and use hearing defense!


A hack-saw can reduce sheet metal, but its shape limits its turning-radius and depth of cut. To pro-Long blade existence, rub wax across the length of the blade. To get a cleaner cut, place a strip of masking tape on the top and bottom of the sheet to keep chips from scratching the material.

The nibbler is a instrument that gives plenty of get a handle on over the cut, but in the cost of cut width. Every cut punches out a small bit of the sheet metal, and the process is repeated. The nibbler demonstrated here is hand operated, although drill-run, electrical, and pneumatic variations are also frequent.


Commonly called aviation snips or tinsnips, these scissor-like resources are fantastic for reducing gentle sheet metals like tin, aluminum, brass, and thin-gauge (24-gauge or thinner) metal. Depending on the cut shape, you’ll use left-cut, right-cut, or straight snips, usually indicated by the handle shade: red for left, green for right, and yellow for straight. Be sure to insert the metal completely to the throat of the snips for optimum cutting.


An excellent jigsaw and the proper metal-slicing blade will make brief function of sheet metal cuts. If you require a straight cut, clamp a straight-edge to the sheet to serve as a information for the jig-saw foot-plate.

After slicing metal, there’s frequently a sharp-edge left. Be certain to eliminate it! You can purchase a fancy de-burring device if you function with sheet metal often, however a fast once-over using a file is just as efficient. Your fingers will thank you!

For more information on metal fabrications in Dublin pls check National Steel Fabrication

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