Band saw for metal. Metal Cutting Machine

Band sawing machine for metal is a high-performance equipment, responsible for performing a number of functions, in particular cutting metals and cutting a variety of strong and high-strength materials. This type of equipment is used quite successfully in the manufacture of metal structures, and in the construction industry, to produce a quick cut of any material. Due to the use of a closed thin steel strip serving as a cutting element of a band saw, the workpiece is sawed straight by a straight line.

Device Features

If we consider the manual band saw for metal in more detail, then it has a similarity to a jig saw, since the scheme of their work is similar. There is only one difference - a closed cloth, welded together in a ring, does not reciprocate, but along a contour on two pulleys in one direction. This motion pattern allows for a longer life of the belt, and also prevents the saw from blunting too quickly. That's why the saws for band saw blunts are not very dull, that is, they do not need to be replaced too often. The small roughness of the cutting plane allows to avoid the need to produce surface finishing.

If a manual band saw is used for metal, the cutting of rolled products, profiles and pipes will be as high as possible. Thanks to the special design of the equipment, it is possible to reduce the consumption of electric energy, and also to minimize losses of expensive materials. This is achieved due to the fact that the cutting of metal in this case is done with a minimum cutting width. That is why such machines are increasingly used wherever work is carried out related to the cutting of expensive metals and alloys, as well as parts with thin walls.

Efficiency of band saw equipment

If you need a band saw for metal, you need to know that the market is currently riddled with equipment that is controlled in manual, automatic and semi-automatic mode. Manual machines are easy to operate, as reliable as possible, since their design is not burdened with electronic elements, which are often out of order. Their work is carried out with a certain effort and speed, set in advance.

Gravity machines

These devices got their name because cutting of metal blanks is carried out by them due to the weight of the console on the material being processed. Hydraulic cylinders and throttling valves are responsible for adjusting the speed of operation. The difference between band sawing is also that the pitch of the teeth of the blade depends on the sawing profile.

The performance of the tape equipment can vary considerably. This criterion allows us to distinguish some types of machines.

Cantilever cutting machine for metal cutting . In this case, the saw frame (console) makes movement by means of a hinge. These models are used for cutting pipes, shaped profiles, long products and solid rolled products.

Single column, double column and portal . The first type is characterized by a horizontal saw frame, which descends along the post. In a two-pillar frame, it moves along two such columns. They are used mainly for sawing at an angle and complex processing. Portal machines are made in the form of a stationary table with a movable portal. This device is used in operations with materials that are difficult to process.

Vertical belt saw for metal . With its help, you can cut metal on any line, line or curve. In this case, the workpiece is fed into the working area manually, and the saw frame remains fixed.

Rotary horizontal machine for cutting metal . In this case, the frame is rotated around the axis in one or two directions with respect to the right angle of the axis of the part. This design provides opportunities for cutting at different angles, as well as instantaneous reconfiguration of the cutting angle.

Advantages of devices

Band saw for metal has a whole set of advantages in comparison with previously released brethren, obsolete morally. The accuracy of the cutting of this device is as high as possible, and the resulting surface is of excellent quality. The manufacturer as a result of this receives substantial material savings, and the availability of saws and barbs on the spot can be forgotten. The technique of the described type makes it possible to process the blanks in batches. With its help, it is possible to cut both conventional tubular rolling and solid blanks. Band saw machine for metal is characterized by well thought out design, which ensures smooth running of the blade and high operator speed. The mechanism serves for a long time due to the presence of a cooling system.

Principle of operation

In all devices of this category, the same principle of operation is used: the operator manually sets the workpiece to the machine, after which it is fed to the stop, and then in the automatic mode, the whole cycle takes place including the clamping of the material, lifting the saw frame and feeding it, expanding it. This equipment is characterized by the highest performance, as well as the ability to function in fairly busy modes in small-scale or single-shot production. As a cutting part of the machine tools, a thin steel tape is used. On one of its edges there are teeth, and it is called cutting, or front, and the second - the back.

Purpose of machine tools

Machines that work with metal blanks are used quite actively in the field of engineering. They serve for cutting non-ferrous metals, shaped profile, pipes in size, as well as solid rolled products. Among their advantages can be called a high accuracy of work, high productivity, reduced consumption of materials. Band saws for metal, the price of which is quite high and for the smallest models starts from 28 thousand rubles, allow to get large volumes of output at the output, and also guarantee the wear resistance of saws in case of their correct selection for the material being processed.

Benefits of using

The processing of blanks on the band saw machine has a number of advantages:

- High-precision cutting;

- the qualitative surface of the resulting cut;

- the minimum cutting width, due to which the material is consumed very sparingly;

- Cutting blanks in packages.

If the existing production requires updating or improvement, then the most appropriate selection of semi-automatic band saw machines.

Automatic equipment

This category is characterized by minimal participation of the operator in the process of work, which significantly facilitates the activity. For control of the equipment, the CNC system is used, independently calculating all the necessary actions of the mechanisms. In mass production, the automatic band saw for metal manifests itself from the very best side. Strength and reliability of parts, increased accuracy of work and high quality of the cut make it possible to implement the most complex tasks with it.

Semiautomatic two-post machine

This equipment is highly productive, and it is used primarily for working with different steels and alloys. In particular, they can be used to cut metal with solid rolled products, as well as for elements whose diameter is quite large. They are used for thin-walled materials: profile, pipes and others.

Features of work

Heavy-duty castings of cast iron serve as bearing parts for double-column band saw machines. They are designed to protect the processed materials from the slightest vibrations, as well as from strong shocks and bumps. The movement of the bracket is carried out on four-run guides. These parts are characterized by increased carrying capacity, which provides them with the possibility of successful work with forgings, large parts, and other elements. The operation of the equipment in a semi-automatic cycle is provided by a special hydraulic system characterized by the presence of electrical control.

Semiautomatic two-post machine for cutting perpendicularly

This type of equipment is characterized by the presence of a saw frame, placed horizontally. When the task set by the operator is executed, this element moves between a pair of racks arranged vertically. The saw frame with the frame is joined by a movable joint. Its rigidity, in combination with the reliability of the parts used, makes it possible to create a high pressure on the workpiece, which is directed as clearly as possible.

Heavy machines for cutting blanks with large dimensions

The extreme rigidity of these machines makes it possible to use them for cutting large billets and materials that are difficult to process. This equipment is used in metallurgical plants. And also in warehouses, which are used for storing metals. In addition, they can be used in shops, procurement sites of different types of high-tech enterprises, where high-performance requires the highest productivity per unit of equipment.

Features of work on machine tools

Work on manual band saw machines is a rather complicated and laborious process, since all operations, in particular the clamping and feeding of material into the cutting zone, turning, lowering and raising the saw frame, the tension of the saw, etc., are made by the worker himself. Therefore, they are used usually in small-scale and single-shot production, for which a small amount of output is characteristic. Saws for band saws are also used in this case.

Working on a semi-automatic machine is much easier, because manually it is only necessary to set the workpiece in motion. This equipment is appropriate to use even in the mid-series production. If we talk about automatic machines, then it is important to note their independence in terms of doing all the work. That is why they are actively used in mass and large-scale production. For such machines, it may be necessary to weld band saws, but special equipment is used for this.

Technique of ribbon cutting of metals

In order to achieve the set goals, it is required to select a belt with the required pitch of the teeth. At the same time, a number of factors are taken into account, among which the most important profile is the profile of the saw billet. And sharpening band saws should be as high as possible. In practice, special tables are used to select the canvas with the desired pitch. When calculating the step of the cloth, it is necessary to remember that at the moment of cutting, there are 3-4 teeth in contact with the blanks. And here it is not so important, what kind of band saw is used (the price is 10 or 250 thousand rubles), it is necessary to select the dimensions correctly.