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Carbon fiber robot accessories

Zhongshan City, towel composite materials Technology Co., Ltd.
Contact: Mr. Lei
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Carbon fiber robot accessories
Carbon fiber robot accessories

There are a lot of carbon fiber products in space now. This is our carbon fiber material that is easier and more suitable for spacecraft. It will become the key to deep space missions. Every food, water and fuel are carefully planned. But making these parts is not easy or cheap. Prototyping and testing new carbon fiber designs is slow, expensive and labor intensive. And as NASA pushes humans into space, it will need to make a huge leap in manufacturing to develop a spacecraft that fits these long journeys.

This summer, NASA got a tool to make the prototype of these parts easier. This is a 21-foot robotic arm whose head consists of 16 rods that look like oversized sewing spools that are attached to a 40-foot-long track that allows the robotic arm to slide around the model.

Wrapped on the bobbin is a carbon fiber line that is unwound when the arm "engraving" the composite part designed by NASA engineers. This is one of the larger composite carbon robots ever built, which can build objects as wide as 26 feet, which means they are "some of the oversized composite structures ever built for spacecraft," says project engineer Justin Jackson.

The printer was built by a company called Electroimpact, which develops technology that stratifies ultra-thin carbon fibers into long-lasting forms. Their machines are elaborate, and it is very expensive that the reel head can almost evoke the spinning room of a 19th century textile mill.

The company says the process is automated fiber placement, which is a big step for carbon fiber composites because the arms can form complex shapes very quickly. This means that NASA can “substantially reduce costs and improve the quality of large spatial structures,” as project manager John Vickers released today.

Electroimpact helped NASA customize its arms, and now it is ready to start its life, helping the agency develop aircraft at the Marshall Space Flight Center in Alabama. The idea is to "build and test these structures to determine if they are suitable for spacecraft that send humans to exploration missions on Mars and elsewhere," says Preston Jones of the space center.

Of course, carbon fiber robot accessories will also help build other things, such as clean rooms. Carbon fiber is increasingly becoming a cheaper, higher quality product. After all, Marshall's design work here can find direction in our daily lives. For now, from this very large printing bed, it is very cool to know that the next generation of spacecraft may appear slowly.

Processing, composites and integrated manufacturing experts at the Advanced Manufacturing Research Center (AMRC) at the University of Sheffield in the United Kingdom have recently produced the world's leading reconfigurable carbon fiber composite robotic machine tools.

The Carbon Fiber Composite Robotics project is part of the AMRC Future Aircraft Factory project, supported by the British Government Aviation Technology Institute, and combined with Airbus, parallel motion robotic system manufacturer Exechon to develop a new lightweight and modular version. Manufactured and tested by AMRC.

The head of the AMRC integrated manufacturing group said: "The modular construction of composites means that robots can be easily disassembled and moved by two people. The use of composites also means that factory temperature changes will have an impact on the accuracy of robotic actuators. Less metal is available. Potential applications include faster drilling and riveting of holes in the wings, without the need to invest heavily in specialized machine tools, which are inconvenient to move."

The manufacturing materials of industrial carbon fiber robot parts have a great relationship with the use environment, and usually need to withstand a large working pressure, so the choice of manufacturing materials is more demanding.

The manufacturing of industrial robots is more or less metal materials. The strength of metal materials is relatively large and it is not easy to wear. However, metal materials have limited space for light weight. The metal material commonly used in manufacturing robots is aluminum alloy, the proportion of stainless steel is small, and aluminum alloy is more convenient to process than stainless steel. Most parts of industrial robots are made of 6061 and 7075 aluminum alloys. The 6000 series aluminum alloys represented by 6061 are mainly composed of magnesium and silicon. The aluminum alloy has medium strength and good quality. Corrosion resistance, weldability, and oxidation effect are good. The 7000 series aluminum alloy represented by the 7075 model mainly contains zinc element, which is an aluminum magnesium zinc copper alloy. It is a super hard aluminum alloy and is also a heat treatable alloy. It has good wear resistance and good weldability, but is resistant to corrosion. Poor sex, mostly used in the environment. Although the hardness of 6061 is not as high as 7075, it is better in corrosion resistance, so most of the robotic arms on the market use this kind of aluminum alloy.

In the manufacture of robots, materials such as ABS resin, PVC, nylon, and plexiglass are sometimes used. Compared with metal materials such as aluminum alloy and stainless steel, the advantages of such materials are mainly light weight and easy processing, but the strength is relatively small. It can be applied to some non-stressed parts of the robot.

In addition, composite materials made of glass fiber or carbon fiber have been developed rapidly in recent years, and their application potential is huge. Carbon fiber is a new type of high-strength, high-modulus fiber material with a carbon content of more than 95%. Carbon fiber is “external and soft inside”, with outstanding mechanical properties, tensile strength is several times that of steel, density is only 1.7g/cm3, and it is 2/3 of aluminum. It is an important structural material in defense military and civil use. As a strategic new material industry, it is included in "Made in China 2025".

Carbon fiber fitting reinforced resin composite has many excellent properties. Its specific strength and specific modulus are relatively high in existing structural materials. Conductivity is between non-metal and metal, thermal expansion coefficient is very small, anti-vibration It has good performance, insoluble in organic solvents, acids and alkalis, and has outstanding corrosion resistance.

Compared with traditional glass fiber, the Young's modulus of carbon fiber is more than three times that of Kevlar fiber. The following is the performance comparison between carbon fiber composite materials and metal materials: carbon fiber composite materials based on epoxy resin can not only give the carbon fiber material itself the characteristics of light weight and high strength, but also have practical material designability. Therefore, It has gradually become the lightweight material of choice for the new generation of industrial robot manipulators.