Wins - composition and properties
It appeared in the USSR back in 1929. The material is a hard metal alloy. The composition of Pobedite includes tungsten carbide and cobalt, the mass ratio of which is 90:10.
Pobedit is characterized by high strength, wear resistance and hardness. However, products made from Pobedite exhibit such disadvantages as causticity and fragility upon impact, so in practice Pobedite spraying and the use of cutting and drilling tool tips are used. Thanks to the tips and spraying, the tool is given properties that significantly increase wear resistance to abrasion and dullness.
Manufacturing method
The alloy is produced in industry not by casting, like cast iron and copper alloys, but by sintering a pressed mixture of composite powder. A ceramic-metal composite alloy is created by mixing fine tungsten carbide powder and cobalt as a binder. The resulting fine powder mixture is placed in special molds in the form of a plate of various shapes and sizes and sintered. Due to the high sintering temperature, which is close to the melting point of the binder material, the result is a unique material with high strength and hardness.
Unlike classical technology, the main components of the alloy can be replaced with other analogues, for example, nickel can act as a binder. However, in practice these alloys are also usually called pobedit.
Scope of application
It is practically indispensable in the mining industry, where it is used as a spray coating for drilling parts of hard rock drilling equipment. In metalworking, pobedit coatings and tips are used in metal-cutting equipment and drawing tools. Pobeda also finds its application in woodworking. Pobedit's high hardness and heat resistance effectively protects equipment used in difficult conditions, giving it good wear resistance characteristics.
At the domestic level and in construction, drills for rotary hammers and impact drills are used for drilling concrete walls.
Our company will buy in any quantities from individuals and organizations.
Source of the article: https://drag-radiodetali.com/ru/stati/pobedit-svojstva-primenenie
provides the highest prices per kg of VKTk alloy (will win)
Metal-ceramic composite alloys have particularly high hardness. Pobedit is made in the form of plates of various shapes and sizes. The manufacturing process is as follows: fine powder of tungsten carbide or other refractory carbide and fine powder of cobalt or nickel binder metal are mixed and then pressed into appropriate shapes. The pressed plates are sintered at a temperature close to the melting point of the binder metal, which produces a very dense and hard material. Carbide inserts are used for the manufacture of metal-cutting and drilling tools: they are soldered onto the cutting tool holders with copper. No heat treatment required.
Currently, other tungsten-cobalt composite alloys have been developed, but the name “win” continues to be used for them.
It is also worth noting that tungsten and cobalt alloys are not always used exclusively in peaceful industrial production. Another area of application is, for example, the production of armor-piercing cores for projectiles and bullets.
We buy Pobedit scrap in any quantity. Both industrial enterprises and small firms and individuals can submit the winnings. Reception is carried out by specialists who can competently and honestly evaluate scrap, including tungsten-cobalt alloys. In addition, it will help to remove a large consignment from your territory
Selling VK Tk at a high price is real. Our company has all the qualities for this, and the presence of a Niton analyzer will show in seconds the chemical composition of any alloy, since the price of Vk Tk is very dependent on the chemical purity of the material. We can buy VK TK at a high price in Moscow and the region.
Pobedit belongs to the so-called group of hard alloys. These are hard and wear-resistant ceramic-metal alloys formed on the basis of highly hard and refractory materials bound with a cobalt or nickel binder. Scrap hard alloys are always highly valued at metal and alloy collection points.
Hard alloys can be divided into the following groups:
Tungsten-cobalt hard alloys (VK);
Titanium-tungsten-cobalt hard alloys (TK);
Titanium-tantalum-tungsten-cobalt hard alloys (TTK)
We will buy scrap VK TK. The price is high!
Hard alloys are divided into cast and sintered. Cast hard alloys are usually used for surfacing on working tools. Sintered hard alloys produced by powder metallurgy methods are amenable only to grinding or methods of physical and chemical action. Recently, the production of hard alloy plates using the sintering method used for a variety of metal processing processes has become widespread.
Hard alloys find their application in the following areas:
Branding
Drawing
Stamping
Processing of materials by cutting: cutters, drills, milling cutters, carbide inserts
Mining and ore mining equipment
Bearing production
We will buy hard alloy at a favorable price for you.
Vk8, Vk10, Vk15, Vk20
In the group of tungsten-cobalt alloys, the most common grades are Vk6, Vk8, Vk10, Vk15, Vk20, where the numbers indicate the percentage of cobalt. VK hard alloys are used for processing materials by cutting, semi-finish milling of solid surfaces, for equipping mining tools, for chip-free processing of metals, wear parts of machines, instruments and fixtures: drawing, calibrating and pressing rods and pipes made of steel, non-ferrous metals and their alloys. In this group, the most widely used alloy is VK8, used in the mining industry and mechanical engineering. Based on it, the VP3325 brand is also produced, characterized by increased wear resistance, impact strength, and vibration resistance.
We accept VK8 hard alloy scrap in the form of:
Vk8 cutter
VK8 plate
Drill VK8
VK8 cutters
T30K4,T15K6,T5K10
In the group of titanium-tungsten-cobalt alloys, the most common grades are T30K4, T15K6, T5K10. Here, after the letter T, the percentage of titanium carbide is indicated, and after K, the percentage of silicon. TK alloys are used for processing materials by cutting: fine turning with a small cut section (such as diamond cutting); thread cutting and reaming of unhardened and hardened carbon steels. Scrap of this group of alloys is found in the form of:
T30K4 cutter, T15K6, T5K10 cutter
T15K6 plates, T5K10 plates
T5K10 cutters
A hard alloy, the price of which, due to the metals included in its composition, always remains high, is very often found at collection points for various scrap materials. However, few firms can provide fair reception. VeCo LLC can accurately determine the composition of any scrap, and therefore ensure fair acceptance. We will buy hard alloy at a price corresponding to the current state of the metal market.
Gliviero
06-02-2010 19:53
Actually a question arose. What is this? where did the name come from? what composition?
I'm interested in all the information. Please don’t poke your nose into the search.. the internet is terrible.. the search is terrible.. although I won’t refuse links
I would be grateful for the information provided. Sincerely. Dmitriy.
Udod
06-02-2010 20:03
kammomile
06-02-2010 20:05
quote: the Internet is terrible.. the search is terrible..
hmmm... and yourself?
Gliviero
06-02-2010 20:06
quote: Originally posted by Udod: If I'm not mistaken, the material was invented shortly after the war. The word “Victory” was the most popular word then.
So I thought so too, and then they suddenly told me that this alloy was developed in 29 or 33..
Alexey_Chernigov
06-02-2010 20:07
Well, yes, it seems that there was also Stalinite... I currently know two uses - soldering on cutting and drilling tools and horseshoes on authorized shoes, for those who were supposed to...
Alt2000
06-02-2010 20:08
Something like this: The winner is metal-ceramic hard alloy. a hard alloy of tungsten carbide WC and cobalt in a ratio of 90% and 10% by weight, respectively. It is close to diamond in hardness (80-90 on the Rockwell scale), and is used when drilling rocks.
Developed in 1929 in the USSR, where it was mainly used for cutting tools. Now the alloy is used to equip drawing tools, as cutters, etc. When creating, powder metallurgy methods are used.
Metal-ceramic alloys have particularly high hardness. Pobedit is made in the form of plates of various shapes and sizes. The manufacturing process is as follows: fine powder of tungsten carbide or other refractory carbide and fine powder of cobalt or nickel binder metal are mixed and then pressed into appropriate shapes. The pressed plates are sintered at a temperature close to the melting point of the binder metal, resulting in a very dense and hard alloy. Plates made from this superhard alloy are used for the manufacture of metal-cutting and drilling tools. The plates are soldered onto the cutting tool holders with copper. No heat treatment required.
Currently, other tungsten-cobalt alloys have been developed, however, the name “win” continues to be used for them.
YUZON
06-02-2010 20:25
The main composition is powder - tungsten carbide - + etc., with a binder - cobalt -
1. Tungsten hard alloys - alloys containing tungsten carbide and cobalt. They are designated by the letters VK, followed by numbers indicating the percentage of cobalt in the alloy. This group includes the following brands: VK3, VK3M, VK6, VK6M, VK6OM, VK6KS, VK6V, VK8, VK8VK, VK8V, VK10KS, VK15, VK20, VK20KS, VK10KHOM, VK4V. 2. Titanium-tungsten hard alloys - alloys containing titanium carbide, tungsten carbide and cobalt. It is designated by the letters TK, while the number after the letters T indicates the total percentage of titanium and tantalum carbides, and after the letter K - the cobalt content. This group includes brands: T5K10, T14K8, T15K6, T30K4. 3. Titanium-tantalum-tungsten hard alloys, which contain titanium, tantalum and tungsten carbide, as well as cobalt, are designated by the letters TTK, while the number after TT indicates the total percentage of titanium and tantalum carbides, and after the letter K - the cobalt content. This group includes the following alloys: TT7K12, TT20K9.
spmolot
06-02-2010 20:32
Pobedit is called VK8 (tungsten cobalt) which is used as soldering on the working part of cutting tools, both turning and earthmoving. Dark grey. Heavy. Fragile. I have not seen that the body of the instrument was made from VK8. It took me a long time to write)))))
spmolot
06-02-2010 21:18
quote: I haven't seen it.
I do not deny.
spmolot
06-02-2010 21:26
quote: I haven't seen it.
I do not deny.))
06-02-2010 21:41
quote: [B] I haven’t seen the body of an instrument made from VK8. I've come across drills made from carbide
from VK8 - hardly, rather VK15-20, they are less brittle, or, more likely, from stellite - this is a casting and surfacing vehicle.
I read somewhere that initially it was an alloy that was called victorious, a cast alloy, like quick-cutting alloys, but with a large amount of carbon and tungsten, so that the carbide content reached 80%. They made it in 1929 as a domestic analogue of stellites. and after the war, in connection with the development of powder metallurgy methods, the powder alloy VK10 began to be called victorious. I came across drills made of carbide alloy, size 5; 6:7: mm length about 6-7 cm, it was about 4 years ago at some exhibition it cost about 300 rubles Amne Yurchik/YUZON heated this one up, drill hard ones...
The purpose of any drilling, as is known, is to obtain an even and accurate sized hole in the product or structure being processed. To solve such a problem, it is very important to choose the right tool; for drilling softer materials, a regular drill is suitable, and for processing harder and more durable materials, you will need a carbide or pobedit drill. The use of a tool whose cutting part is made of carbide material allows for effective processing of stone, brick or concrete.
Pobedit is the general name for hard alloys of tungsten carbide and cobalt.
The name “will win” arose during the Battle of Moscow (1941), due to the fact that armor-piercing bullets for 14.5 mm anti-tank rifles were made from the alloy. There is another version of the origin of the name, which suggests that the name originated in military factories in the rear, where without such an alloy it would not have been possible to produce the necessary amount of weapons for the front.
Tools based on sintered tungsten carbide began to be used in the mid-1920s in Germany. In the USSR, Pobedit was developed in 1929, where it was mainly used for cutting tools.
Initially, tungsten carbide and cobalt in the winning alloy had a ratio of 96:4 by weight. Currently, other tungsten-cobalt composite alloys have been developed, but the name “win” continues to be used for them.
The winner will win
Well and tunnel builders around the world are looking for a complete and yet economical replacement for the expensive diamond and pobedit cutters used on drilling equipment. Fundamental science, in turn, has been struggling for decades to find new compounds and alloys not found in nature. Read about how Russian oil workers helped scientists make a discovery that could lead to the industrial production of a new superhard material - tungsten pentaboride.
Jewelry tool
Diamonds have been drillers’ best friends for a century and a half. In 1863, engineer Rodolfo Loscher first used the prototype of the modern diamond bit during the construction of a railway tunnel in the Swiss Alps.
The steel drills that were used then failed after just an hour of operation. According to legend, in despair watching the futile attempts to break through the mountain, Losche tapped his fingers on the window glass and noticed the traces of a diamond ring remaining on it.
Despite the crazy high cost (the cost of one carat of diamond in the mid-19th century was comparable to the cost of a horse-drawn carriage), Losche was able to persuade the investor to purchase 100 carats of diamonds. The precious stones were attached to the drill pipe manually: a separate socket was drilled at the end of the drill for each crystal and filled with special solder.
Soon the work began to boil. The diamonds crumbled, fell out of their nests, some of them probably never returned to their place, having rolled into the pockets of the workers, but still the precious drills paid off: the speed of penetration accelerated tens of times - instead of an hour, they were enough for a day.
Today, one diamond cutter costs between $20 and $200. Drill bits come in different designs: on average, they have 50 cutters, so the cost of the tool varies from half to several million rubles. The service life strongly depends on the composition of the rock that the drillers “gnaw”: in the conditions of Eastern Siberia, one bit travels 200-500 meters, and in Western Siberia - 10 kilometers or more.
It doesn't get any harder
Can anything replace a diamond? The question of whether a harder substance exists is of great interest not only to drillers, but also to the scientific community.
Over decades of searching, hundreds of publications were published, the authors of which claimed that they had finally found, or at least understood, where to look for a structure comparable to diamond, or even superior to it in hardness. All these allegations were subsequently invariably refuted.
So far, no known substance can compete with diamond in this property. But it has its drawbacks - in an oxygen atmosphere, diamond begins to burn at a temperature of 1000 degrees Celsius, and at higher temperatures it “dissolves” in iron-containing rocks.
A decade ago, Chinese scientists said that, according to their calculations, in the absence of impurities, the mineral lonsdaleite - a hexagonal polymorph of diamond first synthesized in the laboratory in 1966 - could be 58 percent harder than diamond. However, these theories have never been confirmed.
The search for a material that will replace the diamond cutter insert continues. Russian scientists have already obtained samples of new superhard materials, which in their characteristics are very close to such a substance as cubic boron nitride. This is one of the superhard compounds closest to diamond used in industry.
Crystal structures of superhard materials
Oganov et al. Journal of Applied Physics, 2019
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Will he win all?
Until the end of the 19th century, the underground drilling and mining industries used only carbon-infused tool steel to create drill bits. Next came the idea of using a tungsten-carbon alloy for cutting tools. It was first used in the 1920s at Krupp factories in Germany.
In the USSR in 1929, the “canonical” ratio of tungsten carbide and cobalt in the alloy was patented - 9 to 1. Soviet engineers called the alloy, quite in the spirit of the times, victorious. Today there are already dozens of winners: many include not only tungsten and cobalt, but also nickel, titanium, and tantalum.
A pobedite drill drills into concrete and can even pierce metal in it. Such drills cope with work on hard soils and rocky rocks.
For decades, cutter heads for drilling rigs all over the world have been made from pobedite (tungsten carbide) interspersed with synthetic diamonds. They are beyond competition in the market; other materials have not been able to supplant them.
Even harder materials, such as titanium diboride, either require high pressures during their synthesis, and therefore have a high cost, or have much lower crack resistance and are less practical to use.
Between tungsten and boron
In 2015, Russian oil workers and scientists from Skoltech decided to unite in order to jointly obtain a material capable of winning.
“At some point we asked ourselves,” recalls Artem Zakirov, an expert at the Scientific and Technical Institute, “whether it was possible to use a different material for drilling cutters that would be more wear-resistant and would not require high pressures during synthesis.”
The answer to this question was sought between tungsten and boron. It is known that they can form among themselves many stable crystalline phases of different compositions: two phases of composition WB and three more compounds WB2, W2B, WB4.
In the course of new research, crystallographers have discovered three more stable structures that were previously unknown: tetratungsten triboride (W4B3), hexatungsten pentaboride (W6B5) and tungsten pentaboride (WB5). All three phases turned out to be refractory and superhard, and scientists called tungsten pentaboride WB5 the most interesting of them.
According to calculations, the hardness of pentaboride is at the level of 45 gigapascals. And its properties must be maintained even at very high temperatures - for example, the hardness of the new material when heated to 2000 degrees Celsius drops only to 27 gigapascals. At the same time, for example, the diamond would already be blazing with a blue flame.
Gazprom Neft was the first to test prototypes of cutters for drilling equipment made from newly designed materials. Tungsten pentaboride was tested on granite. The test confirmed that the samples are harder than Pobedit and its analogues. The unique material turned out to be 30 percent stronger and 2 times more resistant to high temperatures.
Now Gazprom Neft continues to explore ways to produce new materials and products based on them using industrial equipment. Especially for this purpose, together with the Russian Science Foundation, the company opened a laboratory for computer design of new materials at Skoltech.
Gazprom Neft
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Evolution of success
“The easiest way to interact with business is when you are asked to solve a problem for which you have already half-thought out the solution,” says Artem Oganov, a Russian crystallographer and professor at Skoltech. “We have been studying many systems for a long time, predicting stable chemical compounds and calculating their properties. These were interesting substances, but they were not comparable to pobedit in terms of hardness. It seemed that the winner was truly invincible.”
Oganov's weapon is USPEX. Read this abbreviation however you want, but it stands for Universal Structure Predictor: Evolutionary (X)Crystallography. It is a machine algorithm for predicting crystal structures. It predicts what stable structure a substance with a given chemical composition will have under certain conditions.
The most stable structure of a substance has the least energy. In this case, energy characterizes the electromagnetic interaction of the nuclei and electrons of the atoms that make up the crystal. It is practically useless to search for structures with the lowest energy by simple search: even if the system consists of only a dozen atoms, there will be about 100 billion options for their arrangement relative to each other.
USPEX randomly generates a small number of structures and calculates their energy. And then evolution begins in the literal sense of the word: options with the highest energy, that is, the least stable structures, are discarded, and the algorithm generates derivative structures from the most stable ones. If their energy turns out to be lower than the “mother’s”, but the next “generation” is produced from them.
Reduce pressure
New superhard materials were sent to the Vereshchagin Institute of High Pressure Physics of the Russian Academy of Sciences to verify the results of Skoltech scientists.
“We had experience working with borides, accumulated over the previous 30 years, but we did not explore areas of higher boron concentrations, since such alloys are more brittle,” says Vadim Brazhkin, director of the Institute of Physics and Physics of the Russian Academy of Sciences.
In a chamber with a maximum pressure of 15 thousand atmospheres (approximately corresponding to 15 kilobars), prototypes from tungsten pentaboride several millimeters long were synthesized at the Institute of High-Property Physics. Larger incisor prototypes are not required since the working elements of the incisor crowns do not exceed 15 millimeters. In terms of mechanical indicators, samples obtained at high pressure are superior, but lose in terms of cost.
The IFVD explains that, according to their calculations, for implementation on an industrial scale it is necessary to learn how to synthesize pentaboride crowns at pressures less than 10 kilobars. The institute is now actively working on this. If successful, scientists will have to find a suitable site for production, convince service companies of the benefits of introducing the new material and protect patent rights.
“We wanted to build a technological chain from fundamental science to practical application. In our country, this institution of transfer and business requests to fundamental science is not developed. Using tungsten pentaboride as an example, we are trying to create it practically from scratch,” Gazprom Neft admits.
"Treasure map"
And while pentaboride was being baked and tested at the Institute of Higher Physics, theorists continued their search. And in a new publication, Oganov and colleagues from Skoltech and MIPT described a combination of the USPEX algorithm with two new methods for calculating Vickers hardness and impact toughness (the ability to absorb energy without destruction).
After ruling out noble gases, rare earth elements and radioactive nuclides, the scientists tested binary combinations of 74 elements from the periodic table. The result of their work was a “treasure map” of superhard materials, which identifies both already known and new substances of varying degrees of hardness and toughness.
The “map” presents both well-known materials: tungsten carbide, corundum, and promising ones. One of the new marks on this “treasure map” is tungsten pentaboride.
Crystallographers have also discovered superhard qualities in manganese hydride, a material that had never before been studied as a superhard phase. However, it turned out to be harder than stishovite, a super-hard silicon oxide created by meteorite impacts.
Nikolay Kozin
Pobedite drill: types, application, sharpening, features
When working with materials such as wood, plastic and non-alloy steel, conventional twist drills are used. Tool steel is usually used for their manufacture. But when you have to work with materials with high hardness, a standard cutting tool may not cope with the task and may even break. Common materials such as stone, reinforced concrete, brick and durable high-alloy steel alloys have a much higher hardness than conventional cutting tools. Therefore, to process them you need to use drills made of durable carbide alloys. One of the most suitable options for such a tool is the alloy that will win. Pobedite drills are characterized by high hardness and can drill holes even in the most difficult materials. Let's look at what a Victory drill is and how to work with it correctly.
What does it mean to win?
Engineers have been developing especially hard metal alloys for the manufacture of cutting tools since the beginning of the development of mechanical processing of metal on an industrial scale. And by the twenties of the last century, foreign and domestic scientists were able to find the optimal alloy composition that would satisfy the stated needs. This alloy was named Pobedit. Pobedit is a name given to a whole range of metal alloys with increased hardness, strength and wear resistance.
According to the Rockwell method, hardness indicators should reach 85-90 units.
The main material in Pobedite is tungsten carbide. Its content is within 90%. The remaining important components are cobalt and a limited amount of carbon. In some cases, expensive tungsten has recently been replaced with titanium, but if replaced, the alloy slightly deteriorates its important characteristics. Cobalt can also sometimes be replaced with nickel. Pobedit is a heat-resistant material. Its melting point is 3150 ˚С. It begins to lose its properties and become soft only at 1200˚C. They are obtained mainly by powder metallurgy methods.
Pobedit includes such grades of hard alloys as VK4, VK10, T15K6, V8, V6 and many other new alloys.
The disadvantages of this material include high fragility and low impact resistance, as well as relatively high cost. Therefore, metal-cutting tools are not made entirely of pobedit, but only some parts of drills are made from it or sprayed onto the surface. A pobedit drill has a cutting edge made of pobedit, and therefore has high strength and hardness.
What is it that will win
Pobedit, an alloy containing 90% tungsten and 10% cobalt, was developed in 1929 by Soviet specialists. The main task that the developers set themselves was to create a material capable of imparting exceptional hardness to the working part of the cutting tool. Pobedite brazing began to be made from the new alloy, which made it possible to significantly increase the efficiency of using drills, as well as to process high-strength materials with their help.
In the time since the appearance of Pobedit, the alloy has been constantly modernized. As a result of this modernization, quite a lot of varieties of tungsten-cobalt alloys have been developed, many of which are distinguished by higher strength, more affordable price and ease of production technology. Despite the fact that the ratio of components contained in such alloys may differ greatly from the composition of classic pobedit, they are still called pobedit.
It should be borne in mind that a drill with a Pobedit tip does not cut, but crumbles the material being processed. That is why a drill tipped from Pobedit is optimal for making holes in concrete, stone and brick, but is not suitable for processing wood, plastic and steel. When trying to drill into a wooden product, such a tool will simply tear the wood fibers. As a result, the inner surface of the hole will be “shaggy”, and its diameter will be larger than required. It is also not recommended to use a Pobedit drill for metal work: it will not be able to form a high-quality hole in such material.
Until recently, drills of different categories were used to form holes in materials of varying hardness. Today, drills with various pobedite tips are produced, which are specially designed for drilling materials that differ in structure and degree of hardness.
Design features of a drill with pobedit
A pobedite drill does not differ significantly in appearance from a standard twist drill. It also consists of a shank, a working part and a cutting edge and has a cylindrical shape. The shank can be cylindrical, hexagonal, or have an SDS profile if it needs to be installed in a hammer drill. The working part of the drill is made of tool steel and has a number of helical grooves on the surface designed to remove chips from the drilling zone. But the drill tip is made of hard alloy - pobeda.
Drills with a Pobedit tip do not require pre-sharpening immediately after purchase. They are ready for use, and their cutting profile angle is 130 degrees. The pobedite tip usually has a flat shape. Its width is identical to the diameter of the hole that needs to be made in the workpiece. This tip is fused to the working part of the tool. The tip of the drill is the center of the tip. The tip divides it strictly into two equal parts. If they are not equal, then such a tool will not work.
Design of drills with pobedit plates
Drills produced with a pobedit tip initially have the required cutting angles, so there is no need to sharpen them additionally. The cutting part of the drill with pobedite tips is formed from two “shoulders”, approximately equal in width. The point at which such “shoulders” intersect will coincide with the center of the hole being formed, and the size of the widest one will correspond to its diameter. The axis of rotation of the Pobedit drill will coincide with the center of the hole if the width of the “shoulders” is the same. If there is a difference between the width of the “shoulders,” then the diameter of the hole being formed will differ from the transverse dimension of the tool by its value. If there is a difference in width between the elements of the cutting part, this can lead not only to an increase in the load on the drill and the operator’s hands, but also to breakage of the drill.
If drills with pobedit tips become dull, they can be sharpened in the same way as regular ones. When sharpening, you should keep in mind that the alpha angle of the cutting part of the drill should be smaller, the harder the material being processed. Pobedit is very afraid of overheating, and this should definitely be taken into account when sharpening. In order not to encounter a situation where the pobedit carbide tip begins to crack or even separate from the main part of the tool, it is necessary not to let it overheat and cool it as often as possible, for which you can also use ordinary water. If, nevertheless, the victorious elements of the drill overheat, they should be allowed to cool in natural conditions and in no case subjected to sudden cooling with liquid (this can lead to their cracking).
The modern market offers a wide variety of drills with carbide-tipped pobedit tips, which are designed for processing certain materials. Information about the purpose of such drills, if they are produced in serial conditions, can be found on the packaging.
A price that is too low for a pobedite instrument should raise suspicions, as this usually indicates that you are looking at a low-quality product of unknown origin.
Is it possible to sharpen a Victory bit?
When dull, a drill bit with pobedit tip can be sharpened. The sharpening angle depends on the hardness of the material that needs to be drilled. For the hardest material, the smallest possible angle should be provided. The sharpening process must be done carefully so as not to destroy or overheat the pobedit soldering. To do this, you can cool it.
Typically, a drill with a Pobedit tip has a diameter of 3 millimeters. The maximum diameter of drills for hand tools is 12 millimeters, but can be larger.
The length of the drill ranges from 70 to 200 millimeters and increases with increasing diameter.
What are drill bits with pobedit used for?
For proper use, you need to know exactly what the Pobedit drills are intended for. After all, if you use them to drill inappropriate material, you will not only not achieve your goal, but also destroy a very expensive tool.
The basic rule for using a drill with a winch is the fact that it can only process material that has less hardness.
The main area of application of such drills is the processing of concrete, brick, artificial and natural stone, marble, granite, and ceramic products. All these materials have high hardness and cannot be processed using conventional drills. Pobedit concrete drills are designed for installation on a hammer drill, and therefore work well in conditions of not only cutting, but also impact.
Concrete and stone are hard but fragile materials, so after work, a lot of stuck waste remains on the drill, which must be removed.
When drilling deep holes in durable material, it is advisable to cool the Pobedit concrete drill. If operated at high speed for a long period of time, the weld bead may be damaged or even separated from the drill body.
Periodic cooling can be done with ordinary water, but it should be taken into account that if the cooling is too rapid, the solder may burst.
The operating principle of a Pobedit drill is based on chipping the material being removed rather than cutting it. Therefore, it is not suitable for working with all types of materials. But special pobedit drills for metal are produced. They are similar in design to other Pobedit drills, but may differ in the sharpening angle of the cutting edge and have additional coating. When working with such a tool, intense heating occurs when metal rubs against metal, so Pobedit metal drills require very active cooling.
How to choose the right drill
Despite the apparent simplicity of the process of drilling holes in various materials, solving such a problem is not so simple. Many home craftsmen have encountered a situation where attempts to drill a hole in a wall or any other structure using an electric drill and a seemingly high-quality drill ended in failure. The main reason for such problems lies not in the wrong choice of drill and lack of drilling skills (although these aspects are important), but in the use of the wrong drill. In addition, you must not only choose the right tool, but also have an idea of how its cutting edges should be sharpened.
When preparing for drilling, the following rule should be taken into account: the drill must have a greater hardness than the hardness of the material in which the hole must be made.
If you try to make a hole in a concrete wall with a metal drill, you will most likely have to throw it away, since harder material will quickly render it unusable. This tool, made of high-strength steel, can be used to work with products made of wood, plastic, non-ferrous metals and steel alloys: it does an excellent job with them.
If you need to make a hole in concrete, brick or stone, that is, in materials of very high hardness, it is necessary to use a Pobedit drill. This drill differs from a regular drill in that plates of exceptionally high hardness are soldered onto its cutting part. Since the Pobedit alloy is predominantly used as the material for the manufacture of the latter, such tools began to be called Pobedit drills.
A characteristic feature of a Pobedit drill is a soldered tip made of the strongest alloy
Advantages and disadvantages
The distinctive properties of the pobedit tool made it indispensable when carrying out a variety of construction and repair work.
Among the obvious advantages of Pobedit drills, it is important to note the following properties:
- These drills can successfully process even hard materials such as brick, concrete, ceramic tiles, marble and granite. Regular tool steel drills will not be able to handle this.
- Thanks to its thoughtful design, a Pobedit drill will not be much more expensive than a regular drill without an additional tip.
- The tool does not require preliminary sharpening and is immediately ready for use.
- A large number of types of Pobedit drills are produced. Therefore, finding a tool with a shank for the required type of chuck is not difficult.
- Pobedit takes shock loads well, so it works successfully on a hammer drill in shock mode.
- Some high-quality drills are capable of processing reinforced concrete by drilling through reinforcement.
- Pobedit is not afraid of abrasive inclusions, which are found everywhere in concrete.
The disadvantages of this tool include the following:
- Since the drill crumbles the material being processed, it is almost impossible to get high-quality holes in metal or wood. To process them, it is better to use a different type of tool.
- The cost of a Pobedit drill will be slightly higher than usual, but this is justified by their uniqueness, durability and performance.
- When working with particularly durable materials, Pobedit concrete drills require periodic cooling.
- When using a cheap tool, pobedite deposits often burst or become unsoldered from the drill.
Assortment of pobedit drills
Today, every master can purchase any drills, including pobedit ones. On the modern market, such tools are presented in a wide variety of diameters. In this case, drills can be purchased either individually or in whole sets. Experts recommend purchasing small-diameter drills with a reserve, since such tools often break during use.
Prices for drills vary quite a lot. It all depends on the country in which the instrument was made and how well known the brand under which it is produced is known. The most expensive and high-quality drills are from well-known European companies. The cheapest include tools from unknown manufacturers, which not only do not have high strength characteristics, but also do not always correspond to the declared geometric parameters.
The fairly high price for drills with pobedit tips made by renowned manufacturers is completely justified, since these products are distinguished by such advantages as:
- accuracy of soldering of pobedit tips (connection points are almost impossible to detect visually);
- high quality and sharpening accuracy;
- stated warranty period during which the cutting part of the tool should not become dull.
After the warranty period for maintaining the sharpening parameters ends, the tool loses its uniqueness and can be used as a regular drill with pobedite tips.
It is worth telling separately about individual manufacturers of drills tipped from Pobedit.
DeWalt Extreme SDS-Plus Series Drills
Pobedit-tipped drills, manufactured by the famous DeWalt company, have working diameters of 4, 5, 6, 8, 10, 12, 14 and 16 mm. The shank of drills, the diameter of which does not exceed 12 mm, has a round shape, and for tools with larger diameters it is hexagonal, which allows you to more securely fix the drill in the chuck of the equipment used.
The cutting edge of Pobedit drills from this manufacturer has a serrated configuration, which helps to effectively process even concrete, the structure of which contains reinforcing bars. The shape of the groove of such a tool, when viewed in cross section, resembles a jug, which ensures effective removal of dust generated during the drilling process.
To fix the pobedit carbide tip on the drill, special technology and solder containing copper are used, which makes this connection more resistant to overheating. Thanks to the high quality characteristics of such drills, the holes created with their help are obtained with virtually no chips at the edges.
Bosch pobedit-tipped cutting tools
Drills from the well-known German manufacturer - Bosh - are presented on the modern market in a wide range of working diameters (from 3 to 25 mm). This company produces drills specifically designed for processing various materials (the corresponding instructions can be found on the product packaging).
The company's assortment includes drills with pobedit tips intended for use in conjunction with impact drills (Blue Granite series). Products of this type, specially designed for drilling holes in masonry, have a number of advantages:
- high bending strength;
- higher durability when drilling concrete than a simple Pobedit drill;
- high quality and precision manufacturing of carbide inserts;
- a U-shaped groove, which significantly reduces clogging of the tool with crumbs of the processed material.
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