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. The market value of NIO has reached 75.44 billion U.S. dollars (approximately RMB 496.76 billion), surpassing Mercedes-Benz. Daimler, the company, has risen to the fifth place in the global market value of auto companies. The current market value of
Weilai is also very close to that of China's new energy giant BYD.
Although the stock prices of the new Chinese concept stocks car-making forces have recently recovered, the overall trend is still eye-catching. What are the main reasons why electric vehicle concept stocks are favored on Wall Street? What are the future development prospects?
video data, it is recommended to watch
under WiFi. △ CCTV Finance "World Finance" column video
We don’t understand the market under capital, but we are experts in visiting the workshop. Today we will walk into the Hefei factory of Weilai Automobile to find out:
this The base is jointly built by Weilai and Jianghuai, covering an area of about 839.6 acres and a total construction area of about 230,000 square meters. Very advanced and environmentally friendly. The workers in the NIO Hefei factory are strictly selected from the Jianghuai factory, and there is no mention of education, quality, and business ability. The factory of
Weilai is newly constructed. It does not share the production line with Jianghuai. The number of cars sold is more important than the number of cars produced. From order to delivery, Weilai aims to control it within 4 weeks. Exploring the details of the Weilai Automobile ES6 production line:
video data, it is recommended to watch
under WiFi , Almost all vehicles are fully automated when they roll off the assembly line.
From a manufacturing perspective, the ES8's all-aluminum body design is undoubtedly a huge challenge. Not only does the production line and raw material input costs increase, but also requires strict production processes.
Weilai ES8 all-aluminum body workshop
The white body of traditional steel structure mainly adopts welding technology. The welding robot is accompanied by sparks and lightning when working, mixed with light fog and burnt smell. The all-aluminum body adopts riveting technology. There is no thermal deformation at the joints of the body, no splashes, no high temperature, and the noise of the riveting robot is significantly less than that of the welding robot, so the noise in the workshop is very small.
The all-aluminum body workshop of the Weilai Hefei plant provides 7 connection technologies for ES8 body-in-white: hot melt self-tapping riveting (FDS) self-piercing riveting (SPR) aluminum spot welding (RSW) cold metal transfer arc welding (CMT) structural adhesive (Adhesive) Laser welding (Laser) high-strength core pulling (Monobolt)
ES8 body-in-white application 7 kinds of connection technologies
These 7 kinds of connection technologies provide quality assurance for the body-in-white of Weilai ES8. For example, the use of a large proportion of self-piercing riveting technology is an aerospace process. The rivet is directly pressed into the plate to be riveted through the power provided by the motor. When the riveted plate is plastically deformed and formed under the pressure of the rivet, the rivet is filled with In the riveting mold. It is worth noting that the self-piercing riveting technology has higher fatigue strength, torsional stiffness, corrosion resistance, static fastening force, etc., which can greatly increase the strength of the car body.
To ensure the quality of the ES8 all-aluminum body, the investment in production line equipment is crucial. The equipment integration suppliers of the all-aluminum body workshop of the NIO Hefei plant include ABB, Juyi, Tianjin Fuzhen, etc. The production line is equipped with a total of 261 all-aluminum body line ABB robots.
In addition to the investment in the equipment itself, the all-aluminum body workshop of the NIO Hefei plant also set up an all-aluminum body online inspection production line. This process can monitor the manufacturing quality of the all-aluminum body in real-time, including the riveting connection strength and other factors. Laser on-line precision measurement and control system, non-destructive testing and destructive testing of riveting joints, etc., will enter the next production link after testing without problems.
All-aluminum body online inspection
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