Chinese Aviation Industry

R

Red tsunami

Junior Member
Registered Member
by78 said:
More orders for AutoFlight. Zhongtong Express has
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for 30 V2000CG eVTOLs.

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Recently, V2000CG was awarded a type certificate.

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lcloo

lcloo

Captain
by78 said:
Mr. Zhang Xiaoguang, marketing director of COMAC,
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that a total of 128 ARJ21 have been delivered. They have clocked 360,000 flight hours and carried more than 12 million passengers.

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The last sentence of the statement stated that in future ARJ will be flying beyond West and North of Hu Huan Yong Line 胡焕庸线。Indicating new routes to Mohe city or Siberia Russia, and West beyond Chengdu.

The Yellow line is the Hu Huan Yong Line.
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by78

by78

General
The world's first 3D-printed landing gear was recently unveiled. According to its creator, professor Zhang Haiou, the landing gear can support loads up to 73 tons and uses only 10% of the materials compared to traditional methods of fabrication, making it very economical to manufacture. The landing gear's strength and fracture resistance exceed those made by traditional forging process.

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On March 11, inside the factory of Wuhan Tianyu Intelligent Manufacturing Co, located in the East Lake High-tech Development Zone (also known as the Optics Valley of China, or OVC), Professor Zhang Haiou from Huazhong University of Science and Technology (HUST) inspected the main body of the world's first 3D-printed aircraft landing gear.

The main body of the aircraft landing gear measures 150 centimeters in length, 40 centimeters in diameter, and weighs 240 kilograms. Initiated in 2018, this project achieved a breakthrough in all key technologies by June 2022, and this prototype is now ready for on-aircraft testing.

Previously, metal 3D printing equipment lacked a forging process, leading to common defects such as cracking and deformed printed metal parts. As a result, these metal parts remained in the experimental research phase and could not be used commercially. In 2019, Professor Zhang Haiou's team developed the world's first 3D printing industrial machine that integrates casting, forging, and milling.

For the large metal forging of the aircraft landing gear, the printing process primarily involves the application of techniques related to processes, temperature control, and deformation. Fluctuating temperatures can easily cause cracks in the printed parts, necessitating precise temperature control during printing to minimize the occurrence of cracks. After thousands of experiments, Professor Zhang Haiou and his team finally identified the appropriate printing temperature.

It is worth noting that currently, only China, the United States, Russia, and some European countries have the capability to manufacture large aircraft landing gears. Wuhan Tianyu Intelligent Manufacturing Co is the world's first company to print the largest load-bearing component for large aircraft.
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