How to exhort metal work: self-made "helpers" for the home workshop

Portal users share their experience of choosing and using modern cutting tools and equipment

Just go to any store that sells power tools for metalworking, or visit the dedicated website as the eyes diverge from the abundance of offerings. In addition to standard tools - drills and angle grinders, and found more "exotic" equipment. For example, disk saws and cutting machines for metal. In addition, any handyman would like to learn how to simplify and speed up the work with metal, using the most common power tools. In this article, we gathered hands-on experience of users of the portal and answer the following questions:

• Why do we need a circular saw for metal
• Whether the purchase is justified expensive disk cutting machine for metal
• As the cut sheet metal fret

Features of the circular saw for metal

Often when building a house or steel construction you need to quickly and accurately cut sheet metal with a thickness of 3 mm to 6 mm. How to do it? At first glance, everything is simple - take LBM ( "Bulgarian") and cut material. But what if you want to saw a lot of metal and make tens of meters straight cut? Moreover, it is desirable to smooth edges. This is the question asked by the portal with the nickname

Jurky.

Jurky

Member FORUMHOUSE

I have the most common budget "Bulgarian". I think it can help to saw a lot of sheet metal will not work. The tool can not withstand the load, and the quality of the cut is not it. I want to buy a disc circular saw for metal. I wondered whether it is how much will last drive, and conveniently there to work with her?

The principle of operation of the saw blade for metal cutting work is similar to "circular saw" wood or plywood. The key difference - the number of revolutions.

In the circular saw designed for sawing wood, the average speed of 5000-5500 rev / min. In a circular saw for metal speed is reduced - about 2000-3200 rev / min. Important:in saw blades for metal in the characteristics of written the maximum number of revolutionsUsually not more than 2000-3200 rev / min (depending on the kind of sawn metal - steel, aluminum, stainless steel). Therefore, an attempt to save money and put the saw blade for metal on a conventional circular saw can lead to tragic consequences - the likelihood is high that smashed disk. Besides, cutting mode normal "conveyers" on a tree at high speed is not designed to work with metal.

Output: you need to buy a special saw blade, designed for working with metal, or purchase circular saw with a speed controller and a system of electronic support for constant speed under load. This saw can become "universal soldier", by which (by changing the number of revolutions and saw blades) can cut wood, aluminum, plastic, brick and metal.

Jurky

I eventually bought a circular saw for metal, and experience of working with her only positive. Sawing sheet metal thickness of 5 mm, two sheets of 4 and 3-ki-ki size of 1x2 m. Sliced ​​many corners and chimneys, fixing them in homemade accommodate.

The cut is obtained clean, smooth and free of scale and virtually no deviation from a straight line.

At the user's words, the sequence of "Saw + LBM + jigsaw" you can cut it out of metal, anything.

Blade enough for one construction season (spring-summer), after which it may be blunt and though saws, but the work has become more difficult.

Nuances of operation of disk cutting machine for metal

Sometimes working with metal requires a special tool. For example, using which it is possible to make accurate cuts clean pipes, I-beams, channel, angle, strictly at a certain angle, e.g., 45 or 90 degrees. This is precisely the task ahead Mechanicus.

Mechanicus

user FORUMHOUSE

I need to saw profiled tube (approximately 70 bars), section of 10x5 cm and a wall thickness of 3 mm just below 45 degrees. Then the work assumes with the profile section of 2x2 cm and t. D. First I tried to cut the pipe cutting machine with a conventional abrasive disc 350 mm in diameter. The disc rests on the bottom wall of the pipe and then is stopped. Therefore, I decided to buy a disc cutting machine for metal from England, with a maximum diameter of 355 mm blade.

Outwardly, this machine is similar to the well-known disk miter saw on wood.

T. e. the workpiece is clamped in a vice, on the frame, and then made the cut circular pendulum saw. The preform of steel, aluminum and stainless steel may be cut precisely exposed under an angle, wherein the cut has no burrs, but the metal is not overheated. Also there is no abrasive dust, which is especially important when working in an enclosed space, such as a garage or workshop.

The wide dissemination of this instrument prevents the high cost - in store for such a saw are asked about 50 thousand. rub., and "bite" the price of saw blades. Depending on the type of cutting material (steel, aluminum, stainless steel) "native" firm disk on such a machine may be from 9 to 15 thousand or higher.

Mechanicus I bought a cutting machine directly, without intermediaries in England, for 36 thousand. rub. After unpacking an expensive tool, the user, contrary to expectations, he saw the inscription on the box is not «Made in England», and "Made in China". Though the instrument is manufactured and assembled efficiently, and drink available without lateral play, it had to finish a little to be able to saw the profile of the desired section.

Mechanicus

I moved the fixed jaw vise on the thread for a wide cut and tried to set 45 degrees. It was found that in this position the workpiece sawn edge abuts the frame member. It was necessary to put a fixed jaw plate of PVC 1 cm. Also it had to cut part of the blade housing so that when lowering it is not limited by a fixed jaw. T. to. I have to cut long workpieces, can shift the angle, so I had to drill a base frame and a sponge and sponge to fix an additional bolt.

It was the turn of work. According to the instructions when working with the cut-off saw is not required to use a coolant (cutting fluid). The number of disk revolutions per minute in 1450. The first blank (proftrubu 100h50h3 mm) sawed at an angle of 45 degrees for 30 seconds. Res barely warm, no burrs, little sparks, too.

On the ninth the cut changed the sound of sawing. The pipe became noticeably warm. The speed of the fall. On the tenth saw the cut was not able to pass the lower wall of the pipe. Not helped "smoke breaks", or use as a cooling fluid vedeshki (WD-40).

In the experience of users of the portal, use vedeshki, for example, when cutting or drilling holes in the metal, greatly simplifies the work.

Mechanicus

We worked with a saw neatly, much to her not pressed. We tried to give the disc in regrinding. Do not take. They say there is no equipment for this diameter. Moreover, by external examination disk is not critical wear. Of course, working with a smaller cross-section profile as possible, but I need something to cut a large pipe!

As a result of searches grinder Mechanicus I found the master, which is slightly altered the disk (3-4 teeth), although, in his opinion, the disc is quite sharp. The user has continued to work, using self-made emulsion of the composition: vodka + soap + WD-40. The mixture is fed into the cutting area using a syringe with a long needle. Feeding coolant continuously managed with difficulty not finished sawn last time the pipe. New billet sawing failed.

For the purity of the experiment Mechanicus I tried to saw profile section 15h15h1.5 mm. Saw sawing faster than "bolgarka" clean cut is obtained, although the blank and is heated. As a result, the user first ordeal, thought to sell the saw as a useless toy, which can cut the profile cross-section larger than 5x5 cm, but then changed his mind.

Mechanicus

I decided to still "torment" saw. Also buy a few discs of different companies and compare them life.

SergeyI

user FORUMHOUSE

Note that the metal is "likes" processing with high speed and a large number of turns. It is better to reduce the speed and increase the supply. Moreover, with such disks and the machine must operate strictly maintaining rate / the number of revolutions and handling / feeding the depth that can be done in production environment, but not in the home workshop. Plus, I think, once laid the cost of regrinding drives not cheap.

To continue with a cutting machine, Mechanicus sent to regrinding drive from Chita to Moscow, t. To. The sharpening disc requires special equipment, which is simply not in the studio, "middling".

Sharpening 66 corporate drive teeth cost in 1180 rubles. Total disk can be reground only 15 times.

Results: after regrinding "native" drive continuous feed coolant managed to make 23 more cutting profile 10x5 cm, after which the drive was sent back to regrinding.

Nonnative disk 90 teeth (from another manufacturer) managed to make only 3 cut, and cut the disc stopped, then he, too, was sent to the grind.

Mechanicus

After regrinding nonnative disk earned. I sawed them 15 large tubes, and small continue to nag. Native drive me spoiled - wrongly imprisoned - resharpen with type TCG sharpening sharpening FWF. They managed to cut it only 2 pipes, and it is out of order, but to the credit of the company, I note that t. To. It was their fault, they gave me back the money for the disk, and it is 13 thousand. rub.

Using the jigsaw for cutting metal

Electric jigsaw is most often used for cutting sheet materials OSB, plywood and figure carving on wood. And, although in the specification says that the tool can cut metal, beginners masters questions arise: which metal can be cut with a jigsaw, a thickness, at what speed and applying the pendulum stroke and what to use for this nail file?

Big Muzzy

user FORUMHOUSE

I have a normal electric jigsaw. The tool was lying idle. One day I decided to cut them a sheet of stainless steel with a thickness of 5 mm. I tried sawing metal several manufacturers. Cut is not easy, but it turns out very neat cut. However, at the end of the work did not have the patience and dorezal metal "grinder."

Also Big Muzzy I tried to cut jigsaw conventional "black" metal 2.3 mm thick. Tool cuts, like clockwork, moreover, be accustomed, you can even do shaped cutouts.

Itpb also sawed jigsaw proftrubu 3x3 cm. On sawing the workpiece takes about 1 minute. Turnovers are set smaller, move the pendulum was not used or placed on the first step. In place of the cutting oil supply, ie. In. Oil-free nail file quickly fails.

Mexanuk

user FORUMHOUSE

I cut jigsaw metal sheet 4 mm thick. Nail file and the reverse side of the cut lard, everything turned out.

Prince

user FORUMHOUSE

I sawed jigsaw two steel plates with the thickness greater than 1 cm. On Res 25 cm long it took about 25 minutes + 1 sawing. Cut with a "smoke breaks" on the first pitch, turnovers tied for third and fourth division of the speed controller. In the cut zone pouring oil. Another cut metal thickness of 9 mm. He sawed sawing of aluminum, at a very low speed. Here's what happened.

musicman3 shares experience metal cutting 0.5 cm and a length of 1300 mm thick. Speed ​​he put in figure 5 of the 6 available. Pendulum 1. Cut without water and oil. Taking into account the breaks work took about half an hour, and spent a nail file. According to musicman3, saw jigsaw easier and safer than angle grinders and cut turns out better.

Output

Buying expensive specialized tools for metal cutting is not always justified, if it is needed for a single work. Because then it is most of the time will roll around in the workshop or, at best, be used 1-2 times a year. Therefore: before you purchase a tool you need to think and weigh all the "pros" and "cons." Often sawing metal, cut the pipe at a right angle, and even grind parts, you can use the simple household budget power tools or DIY. The main thing - to know how to do it, but it needs to examine the topic at FORUMHOUSE.

The portal has a section where users share experiences and metalworking secrets choice of cutting tools. Also useful material about features manual arc welding inverter.

On the topic we recommend the article: how to make a homemade tool for the home studio andprofilegib for 2000 rubles.

The video tells about a set of tools needed to samostroyschika.

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