Hacksaw blade installation

It is presented in a C-shape, between the two edges of which there is a special canvas. When considering what the tool consists of , note the following:. Today the handle of a hacksaw for metal in most cases is made of two different components, which ensure a long service life. The shape should be comfortable enough, and the element itself should be placed at the top of the structure or on the side.

In most cases, the top location is used when it is necessary to process hard-to-reach places.. It is designed to take the load, as well as damp vibration at the time of operation.

Today, various materials are used in the manufacture of such tool elements. In order to carry out the processing of hard-to-reach places, the structure often has an element due to which the tilt of the web is adjusted. The frame is made in one piece or sliding, the second version of the design allows the installation of the product with different lengths.

The canvas is represented by a hard alloy tape. This element is considered the thinnest and most fragile, represented by a combination of small teeth located relative to each other at a certain distance and angle. At the time of work, you should be careful, as even minor mistakes can lead to damage. When choosing, attention is paid to the fact that the surface must be hardened, since otherwise the required level of wear resistance cannot be ensured. To increase productivity, a blade with a rare tooth is selected, to increase the quality of a cut with a frequent.

The design features of the hacksaw for metal determine the very widespread use of the tool. The main part determines the duration of use and other points, the cutting speed and cut quality depends on the installed blade.

When buying a hacksaw, pay attention to the frame of the tool, since the blade can be replaced at any convenient time, but the frame cannot.

A high-quality frame is made of sufficiently durable composite materials, or metal. A useful feature is the ability to change the angle of inclination for the hacksaw blade, which allows you to work even in the most inaccessible places. It is also necessary to pay attention to the tool handle. After all, it is for this part that you will hold the hacksaw , so it, in turn, should be very comfortable, sit well in your hand, and, if possible, have special finger stops.

The handle of the tool must be solid, and not have hollow parts, since in this case it may simply break. In general, it should also be noted that the hacksaw must be tightly assembled, not have any backlash or other defects — this will guarantee its high quality. Install a new blade onto the blade retaining pins. Ensure the blade's teeth point away from the handle.

Tighten the wing nut by rotating it clockwise until the blade is tight. Make a test cut on a piece of scrap metal held in a vise.

Tighten the wing nut further if the blade binds or flexes during the cut. I use trimmings nails. In order to remember once and for all how to correctly insert the blade into a hacksaw for metal, you need to understand the principle of the blade itself and its cutting method.

So the canvas scrapes metal with its teeth, each small tooth scrapes a little, a little metal, and since there are several dozen of them, with each wire of the canvas there is a tangible depression, which is called a cut.

So the blade for metal has the direction of the teeth in one direction, this is done in order to make it easier for the teeth to scrape the metal. That is, the principle of a file, so the teeth are set away from you, from the handle of the hacksaw. Now, regarding the tension, the canvas should be stretched very tightly, but you need to tighten the adjusting lamb by hand, if you use a lever or a key, but you can simply break the canvas, and of course you need to make sure that the canvas itself is perfectly level , without scrolls and bends, if suddenly The hacksaw is already experienced and the blade becomes uneven in it, you need to either eliminate this defect, or achieve the maximum even blade in the hacksaw.

A hacksaw for metal is a hand tool that is used to cut profile metal and pipes. The simplest hacksaw for metal consists of a machine and a hacksaw blade. The machine, in turn, consists of a frame, into which on one side a handle is inserted with a device for fixing the web, and on the other hand, a device for fixing and adjusting the tension of the web. The tensioning device, on the one hand, has a groove for inserting and fixing the web, and on the other hand, a screw with a ram with which the web is tensioned.

Hacksaw blades for metal differ from each other in width, length, thickness, distance between teeth and their height. The use of a particular blade depends on the thickness, hardness and shape of the material to be cut. The fabric makers have made sure that you can choose the right fabric for the material you need to cut, be it aluminum, copper, bronze or even plastic.

The blade dimensions, namely length, width, tooth dimensions and steel grade, can be found on the purchased hacksaw blade. As shown in the first picture of the article: teeth down if the blade is one-sided and the teeth are directed forward, away from the handle. When you are sawing, you are applying downward and forward pressure. To install , loosen the tension screw, remove the old blade from the pins, put on a new one and tighten so that the blade sounds like a string from the click of your fingernail.

The main thing here is not to overdo it and not to tear the canvas. Experimentally, you will find the optimal tension. The tension is made with the help of the ram on the adjusting device, that is, by twisting the ram you will stretch the canvas. So when pulling the hacksaw blade , you need to find a middle ground.

Also, make sure that the blade is installed evenly, without distortions, since the distortion will lead to an uneven cut during cutting. The quality of the coating also affects the durability of the hacksaw blade. For domestic tools, the most common coating is Khim. Prm, less often tools with nitroenamel coatings such as NTs or NTs are found.

It should be remembered that under prolonged loads, when the file heats up, the enamel can crack. Product quality can also be assessed by the parameter of equal height of the teeth: the difference in adjacent vertices should not exceed 0. Since you were interested in the question of installing the blade, then advice on how to use a hacksaw for metal will not hurt.

Grasp with one hand right if you are right-handed or left if you are left-handed by the handle of the hacksaw, with the other.

Place the blade on the line to be cut. Privacy Policy. Hacksaw Blade Direction When replacing the blade on your hacksaw the teeth must always point forwar d , away from the handle. A hacksaw works by making a cut on the push stroke, not when pulling it back towards you.

Use the Whole Blade When using your hacksaw , try to use the whole blade while cutting. Make sure to keep a few extra hacksaw blades around.