Western Sahara. Aotearoa New Zealand. Belau Palau. Brunei Darussalam. Dhivehi Raajje Maldives. Korea Democratic People's Republic of. Micronesia Federated States of. Papua Niugini Papua New Guinea. Philippines, Pilipinas Philippines. Solomon Aelan Solomon Islands. Taiwan, Province of China. Turkmen Turkmenistan. Vanuatu Vanuatu. Savage A TD Cutmaster ESAB Prime. ESAB Knowledge center. There are many ways to cut mild steel plate, some of which are suited for automation some are not.
Some are suited for thinner plate, some for thicker. Some are fast, some are slow. Some are low-cost, some expensive. And some are accurate, some are not. This article takes a quick look at the four primary methods used on CNC shape cutting machines, compares each processes strengths and weaknesses, and then gives a few criteria that can be used to decide which process is best for your application.
Oxy-fuel torch cutting, or flame cutting, is by far the oldest cutting process that can be used on mild steel. It is generally viewed as a simple process, and the equipment and consumables are relatively inexpensive.
An oxy-fuel torch can cut through very thick plate, limited primarily by the amount of oxygen that can be delivered. It is not unheard of to cut through 36, or even 48 inches of steel using an oxy-fuel torch.
However, when it comes to shape cutting from steel plate, the vast majority of work is done on 12 inch thick plate and thinner. When adjusted properly, an oxy-fuel torch delivers a smooth, square cut surface.
There is little slag on the bottom edge, and the top edge is only slightly rounded from the preheat flames. This surface is ideally suited for many applications without further treatment. It is a relatively slow process, topping out around 20 inches per minute on 1 inch material. The blade itself spins very slowly, but the cut is made quickly. The coolant should be immediately wiped off the steel after the cut is made.
Method 3. Take the proper safety precautions for torch use. Torches give off intense heat and light. When you use them to cut through steel, they also throw off sparks, which makes them a fire hazard. Wear a protective jacket used by welders. Use a plasma torch for metal that is 0. Plasma torches make very clean cuts and are extremely efficient. A plasma torch can cut through any conductive material, not just steel. The oxy-fuel torch is only able to cut steel.
Use an oxy-acetylene torch to cut through thick steel plates. Oxy-fuel torches cut through far thicker materials than plasma. Use oxy-fuel to cut through any steel thicker than 1 inch 2. Steel plates, however, are usually 12 inches Do not use oxy-fuel torches around oil or grease. High-pressure oxygen tanks can react violently with them.
Acetylene is also a dangerous gas to work with. It is unstable over 15 psi, so try to keep it around 5 psi during use. Always store these tanks upright. A saw can be used to cut through steel slate, which is what Trump was promoting for the new wall. Not Helpful 23 Helpful I have a steel shelving unit and I need to cut the legs off due to rust. Can this be done? If so, how? Yes, it can be done. Steel legs on a shelving unit will require the use of some kind of saw or torch to cut through the thickness.
Not Helpful 4 Helpful You could, but if it's hardened steel, it would take a long time. You'd be better using a wheel grinder. Not Helpful 2 Helpful 4. An angle grinder is useful, as it is small and handy. You just need to find the right disc on to cut the cage. Not Helpful 2 Helpful 3. How do I know what to use to cut steel? How do I tell which type of steel is which?
Use the file, magnet and spark tests to determine type and carbon content of steel. Magnet test will determine whether it's stainless steel, since stainless will not be magnetic or very weak. Oxy-hydrogen cutting equipment is used in the marine industries, as hydrogen can be used at greater pressures than acetylene, meaning that working at depth is easier.
Oxyhydrogen cutters are also quite useful for aluminium, which needs a lower temperature than steel. There are some remote areas that find it difficult to transport these fuels to, so a form of oxy-gasoline cutting has become popular.
Carbide metal cutting blades come in a variety of sizes and types, including both ferrous and non-ferrous ratings. They cut down on sparks and debris, and generally last longer, though they do come with a higher price tag. Each type of metal requires a slightly different technique to ensure that the material is held in place and is adequately supported, however, there is a basic formula that you must follow to get desired results.
While the chop saw comes out on top in almost every category, there are a few limits to its use. The first is the price and the second is the portability. Cutting metal pipe, or other long, narrow pieces of metal is simple with a chop saw, but if you are working with sheet metal, you will have a difficult time trying to run the entire width of the metal through a stationary chop saw. This is when the angle grinder comes into play. Angle grinders are both cheaper and more portable than a chop saw.
They can easily be held in your hand and are especially effective when they are used for cutting small, precise pieces out of larger material. Angle grinders can be fitted with either a grinding disc for thicker metal or a cutting disc.
0コメント