-
There are three main types of tungsten carbide tools:
Class K: tungsten and cobalt cemented carbide, mainly composed of WC and CO.
Class P: tungsten cobalt titanium cemented carbide, the composition of which is 5%-30% in addition to WC and CO Tim group: tungsten titanium tantalum (niobium) cobalt carbide, the composition of which is added to the appellate tool TAC and NBC
Tools for turning titanium must not use PM, because titanium alloys and titanium have a strong affinity. Therefore, tungsten cobalt cemented carbide is the most important tool material used to process titanium alloy in China, generally speaking, the cobalt content is less can be used for the finishing of titanium alloy, and the cobalt content is used for rough machining. When using tungsten and cobalt cemented carbide tool materials to machine titanium alloys, the cutting speed has the greatest impact on the tool life, followed by feed and depth of cut.
Magnesium is fine, magnesium alloy cutting performance is very good, but it is easy to burn. There will be binders on the flank surface, and if not removed in time, it will affect the quality of the machined surface and the subsequent surface treatment.
-
In the manufacture of tungsten carbide, the raw material powder is selected with a particle size of between 1 2 microns and a high purity. The raw materials are batched according to the specified composition ratio, and alcohol or other media are added to the wet grinding in the wet ball mill to make them fully mixed and crushed, and after drying and sifting, wax or glue and other molding agents are added, and then the mixture is prepared by drying and sifting. Then, the mixture is granulated, pressed, and heated to close to the melting point of the binder metal (1300 1500), and the hardened phase and the binder metal form a eutectic alloy.
After cooling, the hardened phases are distributed in a grid of bonded metals and are closely linked to each other to form a strong whole. The hardness of tungsten carbide depends on the content of the hardened phase and the grain size, that is, the higher the hardened phase content and the finer the grain, the greater the hardness. The toughness of tungsten carbide is determined by the binder metal, and the higher the bond metal content, the greater the bending strength.
-
Summary. Generally, W1, W2 turning tools are more suitable and cheaper, rough turning can also be used YG8, finishing is best with PCBN tools, but ** more expensive, compared with cemented carbide tools, titanium alloy processing has the characteristics of high cutting speed, low surface roughness and long tool life, and under the conditions of high speed, low feed, low back eating tool, there is longer tool life and very good workpiece processing surface roughness, so PCBN tools are more suitable for finishing titanium alloys, but because PCBN tools are very brittle, In the cutting process, attention should be paid to the possible breakage and chipping problems of the tool.
Generally, W1, W2 turning tools are more suitable and cheaper, rough turning can also be used YG8, finishing is best with PCBN tools, but more expensive, compared with cemented carbide tools, titanium alloy processing has the characteristics of high cutting speed, low surface roughness and long tool life, and under the conditions of high speed, low feed, low back eating tool, there is longer travel socks tool life and very good workpiece processing surface roughness, so PCBN tools are more suitable for finishing titanium alloys, However, due to the great brittleness of PCBN tools, attention should be paid to the problems of breakage and chipping that may occur in the cutting process.
-
Summary. And under the conditions of high speed, low feed and low back eating weight, it has a longer tool life and very good surface roughness of the workpiece, so the PCBN tool is more suitable for finishing of titanium alloy, but due to the great brittleness of the PCBN tool, attention should be paid to the possible damage and chipping problems of the tool in the cutting process. <>
Hello, it's an honor for me to answer your questions, it will take a little time to sort out the answers, please be patient
Hello seller, happy to answer for you. W1 and W2 turning tools are more suitable and cheaper for buried car titanium alloy, YG8 can also be used for rough turning, and PCBN tools are best used for finishing, but they are more expensive.
And under the conditions of high speed, low feed, and low back eating tool, some people have a long tool life and very good surface roughness of the workpiece, so the PCBN tool is more suitable for use as a fine and clever shed worker of titanium alloy, but due to the great brittleness of the PCBN tool, attention should be paid to the possible damage and chipping problems of the tool in the cutting process. <>
Titanium alloys refer to a variety of alloy metals made of titanium and its metal. Titanium is an important structural metal developed in the 50 years of the 20th century, and titanium alloy has high strength, good corrosion resistance and high heat resistance. In the 50s and 60s of the 20th century, the main development was the high-temperature titanium alloy of Lingzhi for aero engines and the structural titanium alloy for the body.
If my answer is helpful to you, please also give a thumbs up (comment in the lower left corner), I look forward to your like, your efforts are very important to me, and your support is also the motivation for my progress. If you feel that my answer is still satisfactory, you can click on my avatar for one-on-one consultation. Finally, I wish you good health and a happy mood to return to the world and <> quickly
-
The hardness of titanium alloy is lower than that of steel, and ordinary knives can be used.
Titanium alloys refer to a variety of alloy metals made from titanium and other metals. Titanium is an important structural metal developed in the 50s of the 20th century, and titanium alloy has high strength, good corrosion resistance and high heat resistance. In the 50s and 60s of the 20th century, the kingpin included the development of high-temperature titanium alloys for aero engines and structural titanium alloys for airframes.
In the 70s, a number of corrosion-resistant titanium alloys were developed, and since the 80s, corrosion-resistant titanium alloys and high-strength titanium alloys have been further developed. Titanium alloy is mainly used to make compressor parts for aircraft engines, followed by structural parts for rockets, missiles and high-speed aircraft.
Titanium alloy features:
Titanium alloy has high strength and low density, good mechanical properties, good toughness and corrosion resistance. In addition, the process performance of titanium alloy is poor, the cutting process is difficult, and it is very easy to absorb impurities such as hydrogen, oxygen, nitrogen, and carbon in hot processing.
There is also poor wear resistance and complex production process. The industrial production of titanium began in 1948. The needs of the development of the aviation industry have made the titanium industry develop at an average annual growth rate of about 8%.
The annual output of titanium alloy processing materials in the world has reached more than 40,000 tons, and there are nearly 30 kinds of titanium alloy grades. <>
-
1. High-carbon steel, high-carbon steel turning tools are made of carbon steel with a carbon content between 0.8 and 1.5 percent after quenching and hardening, and are easily replaced by other tools due to friction tempering and softening during cutting;
2. High-speed steel, a steel-based alloy, commonly known as Bai Yuanxin no turning tool, is made of carbon steel with a carbon content between 0.7% and 0.85% and added to tungsten, chromium, cobalt and vanadium and other alloying elements;
3. Non-cast iron alloys, cobalt, chromium and tungsten alloys are also called superhard casting alloys because they are difficult to cast and form because of the cutting and cutting process;
4. Sintering carbonization turning tool, powder metallurgy product, made of 50% to 90% tungsten added to titanium, molybdenum, tantalum, etc., with cobalt powder as a binding agent, and made by heating and sintering.
-
Summary. Dear, you can <>
Blades with aluminium can be turned titanium alloy. Although titanium alloy is more difficult to machine than aluminum, because the friction between the tool and the workpiece is not easy to generate heat in cutting, the insert of turning aluminum can withstand the friction and cutting heat in titanium alloy machining. However, it should be noted that when processing titanium alloys, some special processing methods need to be adopted, such as low-temperature cutting, high-speed cutting, etc., to reduce the impact of cutting force and cutting heat on the tool, and also pay attention to the <> of wear and damage of the tool
Is it OK to use the blade of the car aluminum to turn the titanium alloy?
Dear, you can <>
Blades with aluminium can be turned titanium alloy. Although the machining difficulty of titanium alloy is higher than that of aluminum, because the friction between the tool and the workpiece is not easy to generate heat in the cutting process, the blade of the turning aluminum can withstand the friction and cutting heat in the processing of titanium alloy. However, it should be noted that when processing titanium alloys, some special processing methods need to be adopted, such as low-temperature cutting, high-speed cutting, etc., to reduce the impact of cutting force and cutting heat on the tool, and also pay attention to the wear and damage <> of the tool
What blades to use for fine turning of pure titanium.
Pro, use high-hardness, good wear resistance of the row key blade file materials, such as single crystal diamond, cubic boron nitride, etc. These insert materials are extremely hard and wear-resistant, which can guarantee the precision and efficiency of fine turning
Tungsten carbide is an alloy material made by powder metallurgy process of hard compounds of refractory metals and bonded metals. Cemented carbide has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance, corrosion resistance, especially its high hardness and wear resistance, which basically remains unchanged even at a temperature of 500, and still has a high hardness at 1000. Tungsten carbide is widely used as tool materials, such as turning tools, milling cutters, planer cutters, drills, boring cutters, etc., for cutting cast iron, non-ferrous metals, plastics, chemical fibers, graphite, glass, stone and ordinary steel, and can also be used to cut heat-resistant steel, stainless steel, high manganese steel, tool steel and other difficult-to-machine materials.
Materials Required: Oxygen, acetylene gas, welding gun, borax, brass electrode, gas welding goggles, tweezers. The key to gas welding is to adjust the flame and master the heat >>>More
Alloy saw blades are characterized by being fast.
1. Anti-aging.
The main structure of the carport is all made of high-quality, high-strength aluminum alloy materials, which has permanent anti-aging ability, never rusts, and the special process treatment on the surface greatly improves the service life of the carport, reduces the decomposition from ultraviolet rays, and lasts for a long time, achieving superior weather resistance. The sealing strip is made of high-quality anti-aging EPDM sealing strip, each connection point and sealing point is made of anti-aging ABS engineering plastic, the fixing screws are all stainless steel 304 screws, and the special rubber sleeve covers it, which is beautiful and durable, and the carport can be effectively used for more than 30 years. >>>More