Why are there more than 80 doors in Tesla Giga Shanghai? What black technology is there?

Known as the modern Iron Man, Musk's "Musk Industry" seems to be synonymous with black technology. From space exploration technology company rockets, manned dragon spacecraft, the landing of stars and arrows on Mars, the interface between human brain and machines, to solar power generation and energy storage, and then to Tesla, which we are familiar with and often board Weibo's hot search, Musk actually has only one purpose, that is, to make more people afford electric cars, use clean energy, and finally realize the carbon neutrality of the earth, and even immigrate human beings to the solar system. Having said that, what are the unique technologies of Tesla's factory? (Because taking pictures is not allowed, the pictures are from official and official video screenshots. )

TES factory in Shanghai has more than 80 logistics doors.

In fact, the production mode of Shanghai Tesla Super Factory is not obviously different from other car companies, and it is still the five technological processes of stamping, welding, painting, assembly and testing. However, in order to improve production efficiency and save storage costs, Tesla Super Factory has no AGV automatic transport trolley for transporting parts. Instead, more than 80 doors are opened to the factory, and the trucks directly unload the goods at the corresponding doors, and the parts are directly sent to the next production line by forklift. The distance from purchase to online is only 10 meter, which greatly improves the efficiency. However, the premise is that the purpose of the parts transported by each truck and the door for unloading at the final destination need to be arranged in advance.

Shanghai Tesla Super Factory Integral Workshop

Another point, unlike other car companies' factories, Tesla concentrates its stamping, welding, painting, final assembly and testing in one big factory, and what the factory needs to do is to "build blocks", which may be called "super factory".

Rolling cutter

Stamping front hatch cover

Let's talk about the production mode of Model 3 first. The first thing is to punch the steel provided by the supplier into various parts of the car body. It is worth mentioning that Model 3 adopts ultra-high strength steel in the bottom plate, A-pillar, C-pillar and D-pillar of the battery pack, which can exert the best performance in terms of rigid torsion and collision safety.

welding shop

welding shop

In the welding workshop, each body part is bonded first and then welded together. Shanghai Tesla Super Factory adopts German KUKA robot (controlled by Midea Group). The welding process and process of Model 3 are no different from other car companies.

painting workshop

Spray painting workshop, electrostatic adsorption, high-pressure and high-speed nozzles are no different from other car companies. The sagging quality problem of the first batch of domestic Model 3 body paint has a great relationship with the painting process, which has been solved at present.

Battery pack and motor assembly

Model 3 assembly workshop

There is not much black technology in the assembly workshop of Tesla Model 3, with a beat of about 30 units per hour and a weekly output of 5,000 units. It not only produces Model 3 models in China market, but also produces right-turn models exported to Japan and Britain. There is a small detail that needs to be mentioned. On the production line with higher automation rate, the front and rear windshield of the car are glued by robots and then directly installed on the car body. Model 3 is manually installed on the car body after the robot is automatically glued. It was found at the scene that the rubber strips on both sides of the rear windshield of a car were pressed by more than half of the glass, and the other side was normal.

AP camera calibration

Every car should be sprayed.

Every car should test the insertion of different brands of charging plugs.

observational check

Finally, the quality inspection link, each Model 3 has to go through AP camera calibration, spraying, charging plug and appearance inspection before it can drive to the parking lot. From the whole visit, except for more than 80 doors, at least the production line of Model 3 didn't leave me much impression, which was basically consistent with the processes and processes of other mainstream car companies. Compared with many new domestic forces, the production line of Model 3 can't be done at present. Therefore, how to improve efficiency and how to increase production is indeed something that Musk should consider. So there is the following black technology.

Y-type die-casting afterbody

Y-shaped body details after die casting

Details of body C-pillar of Y model after die casting.

The rear body of Tesla Model Y adopts a 6000-ton die casting machine to directly cast high-temperature liquid aluminum alloy under pressure. Pressurize to extrude bubbles in aluminum alloy and increase the strength of metal castings; Casting, integrated molding, eliminating more than 70 parts and more welding processes and welding robots. At present, only Tesla Model Y is used in mass casting car body, which can greatly save costs, improve efficiency and make the car body stronger and lighter. This is also the most conspicuous black technology on Model Y.

It has been formed since it came out of the die casting machine.

Automatic removal of casting waste

Waiting for boarding.

Reduce 70 parts

Casting the car body will reduce the cost of building a car by 40%, which is one of the reasons why Tesla Model Y will reduce the price. Although Tesla has always been at the forefront, with the innovation of technology, electric vehicles with electronic product attributes not only have fast iteration speed, but also have higher cost performance and stronger performance, similar to digital products such as mobile phones, computers and cameras.

Extended reading:

You have to admit that Tesla is actually an electronic product.

Dare to be independent Tesla will be cheaper and cheaper, but the car will be better.

Tesla Giga Shanghai

Tesla certainly has its own problems, especially at the public relations level. It is often shirked in the face of consumer rights protection and is not transparent enough to the media. However, we have to admit that the emergence of Tesla has really changed the electric vehicle industry and built a cheaper electric vehicle with the latest technology. This is a serious enterprise. Compared with car companies such as PPT, concept car and graphene battery, Tesla is still very pragmatic, and the mass production speed of new technologies is amazing.

On September 22, 2020, Musk announced a new car plan of $25,000.

The cast car body was officially announced on Tesla Battery Day on September 22 last year, and it has been mass-produced in the middle of this year. The next black technology should be the 4680 battery with electrodeless ears and the cheaper new car with 25,000 dollars. Let's look forward to it.