cold forging - is the processing of metal without bringing it to high temperatures.In contrast to the hot and cold does not allow the installation of the hearth, which is why this method and is very popular in domestic craftsmen.It should be noted that it is possible to make a machine for cold forging your own hands.This will require a minimum number of tools, free time and desire to work.
little general information
First of all I would like to say that the scope of parts produced by cold forging, is very extensive.This is a different fences for beds, fences, metal decorative lights, benches and much more.To manufacture such a product everyone can.For these purposes often use hand-held machines, which consist only of an anvil and hammer.But the range of products manufactured in this case will be quite limited.The same applies to conventional bender.Yes, they can do something, but often this is not enough.Therefore, there is a need for a machine.Let it not be a professional, but you will be able to fully forge.Let's talk about how to create a machine for cold forging your own hands.But first things first.
advantages and features of cold forging
As mentioned above, you do not need to equip the horn.This is due to the fact that the proper cold forging essence is that the metal blank is processed to a greater extent by bending, welding, and pressing.In the studio you do not need a lot of space, since the equipment in this case, less overall and simple.In addition, the process is more secure, because they do not have to deal with high temperatures.
But it has its drawbacks, which lie in the fact that the work comes with blanks, semi-finished goods.Therefore, if you make a mistake, it will not be possible to correct the error.Of course, this applies not all work, but in most cases the workpiece can be thrown on the scrap.In addition, forged products often break down, which is also a strong point can not be called.The rest is a great way to make a twisted, wavy and other metal products.
cold forging their own hands: machines "snail" and their features
With these tools and their variations, there are many, you can make rings, spirals, waves and other metal "curls."The design of the equipment is simple and the manufacturing process involves just a few simple steps.
First, we need paper, graph paper, which is necessary for the application of the exact dimensions.On paper, it is necessary to draw a spiral, each turn is larger than the previous one.But it is necessary to strictly observe the step.Although this requirement may be waived, especially if you do not plan to make symmetric details.
Before assembly, it is necessary to consider, with a diameter workpieces work will be performed.In all circumstances, must meet the following requirements: "step" must be greater than the diameter of the treated rods.Otherwise you do not get removed from the machine the workpiece without damaging it, which is not good.It is worth noting that the cold forging machine, made with your own hands, such as the type of "snail", very useful.
working surface, shape and additional elements
The working surface can take the sheet metal.Its thickness should be not less than 4 mm.As for the linear dimension, this parameter depends on the overall extent will be blank.
to form desirable to take the metal strip, about 3 mm thick.So you can without any problems to work with hand tools.For example, the bending of the spiral can be performed using a pair of pliers, but be sure the pattern.
For convenience of work necessary to fix one end of the workpiece.For this purpose, suitable conventional scrap rod, which is the same width as the strip.Moreover, the machine made for cold forging their hands must be fixed on a workbench.Often working platform is secured in a vise, which is also quite effective.But as the forces at work are applied are not small, then the lock must be reliable.
assembly "snail»
machines for cold forging improvised such as "snail" going pretty easy.As noted above, there are a whole lot of modifications.Someone makes a monolithic machine, while others prefer a folding design.If the first option, you are ready to "snail" simply welded to the work site.The main requirement in this case - to provide reliable fastening end of the workpiece.The folding design provides for a number of holes in the work site.If necessary, it will remove the machine, for example, to repair, and then put it back.This approach is more practical, but reliable fixation in this case is slightly lower, as the fittings will permanently weaken.We have a little understood that a cold forging.His hands machines, in addition to the 'snail', and others can do, let's take a closer look at them as well.
«Gnutik" and "flashlight»
«Gnutik" - a machine that is cold forged, without a doubt, is the base.It should be noted that the machines for cold forging this type of homemade produce is difficult, but possible.As in the previous case, you will need to first make a drawing or use already prepared.Only then can proceed to the assembly.From the name you can understand that this device is used for bending metal products at a certain angle.As a result, we obtain the required elements of the arc radius.The design consists of a fixed base with a hole in the abutment.The diameter of this hole should be selected depending on the diameter of the workpiece.
Such improvised equipment for cold forging, as "flashlight" is extremely rare.This is due to the fact that this machine is used for the production of decorative lights.It is very important accuracy is achieved in the home is very difficult.Yes, and often "flashlight" is not included in the basic equipment for cold forging.
«Wave" and "Twister»
As you can see, to make home-made equipment for cold forging is not so difficult, however it will have to make some effort.For example, the machine "Wave" is an elementary structure consisting of a fixed stop and a pair of rollers.And one clip must be installed in a fixed state.The second is equipped with a lever and is movable.With his assistance and bending the blank, which is fixed by means of a fixed stop.
«Twister" - a device consisting of a movable longitudinal clamp which can rotate around its own axis.At one site mounted a second clip, but still.In this case, metal forging their own hands provides for the manufacture of twisted products.This is achieved by means of special screws mounted on the movable jaw.The second part of the preform is set to fixed.It is important to place the two stops on the same axis.
few details
Here we have already figured out how to make a homemade machine for cold forging.I would like to note that this equipment is fairly simple, so it can make anyone.But usually in the eye no one does anything.This applies to the manufacture of machines and forged products.Therefore, before starting work sketching, apply dimensions and customize equipment by size.In priority, it is desirable to produce a machine for cold forging universal.His hands make such equipment is difficult, as it combines all of the above types.You can put all the machines on a large working platform, which is also quite convenient, and saves space.If you plan to work with thick bars, the manual drive you will not be enough.In this case, the most appropriate solution - install the motor.But it is important to choose its power.If it is insufficient, the motor can not cope with the work, if it's too large, you risk too far.
Conclusion Now that you know what the cold forging.Machine-made with their hands, as noted above, can be manufactured without any problems.You will need a minimum amount of tools and knowledge.If you do not do too often forged, then you will have enough of the minimum set.When it is working, the machine should be gradually upgraded.For example, to install removable cochlea spiral, which between them will be different in size and pitch.Basically, that's all you can tell us on the subject.There is not so difficult as it might seem at first glance.The main thing is to start assembly, and will continue to be a little bit easier.
