Smaller chunks of cast iron can be cut with handheld rotary tools equipped with diamond cutting wheels and tungsten carbide cutting bits. These cutting attachments come in a variety of sizes and can be used to make accurate cuts where a reciprocating saw could take too much material.
Large pieces may need to be cut with a power tool. A backhoe or other large equipment is needed to lift the weight of the metal off the ground while it is being cut. The metal cutter on a backhoe uses teeth like those on a buzzsaw to slice through metal.
If you own a metal cutting business, you will need to purchase your own set of metal-cutting tools. There are many different types of tools available, including angle grinders, draw knives, and circular saws.
Some metals such as aluminum cannot be cut with regular blades because they will become dull quickly when hitting other objects. Specialty tools are required to make smooth, even cuts in aluminum.
Steel needs to be hardened before it can be cut with a rotary tool. This hardens the surface so that the blade will not break off when cutting thick materials. Hardened steel can also be cut with a regular hand saw or an electric saw. Non-hardened steel should only be cut with a sharp knife or scissors.
Aluminum and steel each have their own special methods for cutting.
Tools. To cut wrought iron, use an oxyacetylene torch or a titanium-coated, high-speed steel saw blade on a hacksaw or right angle grinder. As long as the rail is linked to concrete or another nonflammable surface, the torch can cut close. But don't try this with an ordinary gas burner; the heat would burn you before the metal did.
Saws can also be used but they are not as effective because the blade tends to wander across the metal rather than cutting straight down the middle. Also, because wrought iron is hard to find in standard widths, people often have to make do with salvaged material or buy several different sizes of blade to fit their saws.
Finally, some metals can be cut with a knife. The trick is to use a sharp one. Because knives get dull over time, it's best to keep them sharp by using a stone plate or other method. Of course, if you're lucky enough to have access to a metal working shop with a torch and some stainless steel stock, you can have your metal worked into something more useful.
When necessary, angle iron can be chopped to size using a torch, an angle grinder with a cutoff wheel, or a chop saw. The police saw is the perfect choice if you need to make numerous cuts in a succession, make mitered cuts, or need extreme precision. For general-purpose cutting, a torch is effective for light duty only. For heavy duty use, a power saw is required.
The easiest and most efficient method of cutting angle iron is to use a plasma cutter. These machines can cut almost any shape or size of metal quickly and accurately. They work by directing a stream of highly charged gases called plasma at the metal angle iron to be cut. The heat from the plasma causes the metal to melt, just as it would if you were using a torch or a sledge hammer.
Angle iron can also be cut with a torch. This is the most common method used by hobbyists when welding together metal shapes. When using a torch, it is important to keep the metal being welded away from any heat source other than the torch flame. Otherwise, you will burn or otherwise damage the material being worked on.
Last but not least, angle iron can be cut with a hand tool. This is useful for lighter gauge metal or metal that isn't suitable for welding. A circular saw or an angle grinder with a cutting disk is needed for this method.
Cast iron is an extremely resistant and durable material that has been utilized in building construction for hundreds of years. When cutting through solid cast iron, however, a saw or cutting tool with a diamond saw blade is the ideal option for making a straight line cut. Otherwise, you will need a cutting tool designed specifically for cutting cast iron.
Because it is so hard, cast iron cannot be cut with a knife or scissors. A metal cutting wheel or other cutting tool can be used to shave small amounts of material off the surface while avoiding penetrating the iron completely. However, if you want to remove large sections, then you will need a more powerful tool. Cast iron can also be scratched or dented, which would weaken its strength. If you do find yourself with a damaged piece, then there are several options for repair. Cast iron can be welded back together if there are no deep holes or cracks, but this should be done by a professional because improper welding could damage the integrity of the item.
When cutting cast iron, use caution not to expose your skin to any sharp edges because they can cause serious injuries. If possible, always wear protective clothing including gloves when working with a saw on cast iron. This is especially important when using a power saw because cast iron can get very hot during cutting operation.
Yes. Cast iron may be cut using a sawzall in an effective manner. Reciprocal saws are popular among contractors, handymen, and homeowners. All you need is a blade suited for cutting cast iron if you already have the equipment. Otherwise, you can buy one of these tools specifically designed to cut cast iron.
The first thing you should know about cutting cast iron with a sawzall is that you should not use a circular saw for this purpose. Instead, you should use an oscillating tool or even a handsaw. Circular saws tend to wander when they are being used to cut such hard materials as cast iron. This could result in cutting into other parts of the object you are trying to remove instead. An oscillating tool or handsaw on the other hand will stay put while it cuts through the metal.
Once you have located the area you want to cut out, hit it with a few light taps with a hammer to make sure there are no loose pieces inside the hole you are making. If all is well, start cutting! Be careful not to apply too much pressure when using a sawzall because cast iron tends to break easily.
As long as you only have small holes to cut out (such as window cranks) you do not need any special skills or tools for sawing cast iron. Any reciprocating saw or handsaw will work fine.
While a plasma cutter torch may be used to cut cast iron, it is not the ideal way for doing so. It is advisable to use a snap cutter, angle grinder, or reciprocating saw for cutting cast iron. Cast iron can be very hot when you first start cutting into it, so wear protective clothing and equipment when working with this material.
When you burn cast iron in an open fire, the metal gets hot but doesn't get as hot as when exposed to air. So if you want to cut cast iron with a torch, you need to keep this in mind and work fast before it gets too hot.
You can cut cast iron with a torch by first putting some water on the ground or in a bucket to put out any sparks that might occur when cutting the metal. Then, light the torch and hold it about 6 inches away from the cast iron. Move the torch back and forth over the area where you want to cut. This will cause the cast iron to break up into small pieces which can then be removed with a shovel or other tool.