Some time ago, a Tesla owner "280,000 car repairs to 200,000" caused a hot discussion. Srds, I heard that the cost of repairing Tesla is high, I didn't expect it to be so high, it was outrageous? The owner of the car is helpless: "It is better to scrap it directly."
Why is Tesla's repair cost so expensive? This is mainly related to its use of a one-piece die-cast body. The process can replace the original multiple small parts with a large aluminum casting, effectively reducing costs and achieving body weight reduction.
Cost is well understood, the integrated die-casting body process is integrated molding, without spending a lot of time, manpower for parts assembly, take Model Y, the original back plate of more than 70 parts, is simplified into 2 large parts, after the combination into one piece; solder joints are also reduced from seven or eight hundred to about 50, production efficiency is significantly improved. At the same time, the reduction of solder joints can also reduce abnormal noise, significantly improving the rigidity of the body. In terms of lightweight, integrated die casting uses aluminum alloy material, which reduces weight and improves energy efficiency. This is a suitable deal for Tesla, which has built a new factory.
Good for car companies, but pit consumers? Because if a collision occurs, the integrated die-cast parts can only be replaced in its entirety, which is why the collision repair costs 200,000. However, the damage rate of components such as the back plate is relatively low, and it is generally necessary to be damaged by more serious accidents. I can only say that friends who buy Tesla remember to buy car damage insurance. The increase in maintenance costs will also lead to an increase in the premium of the vehicle.
However, it is undeniable that reducing production costs and effectively improving body stiffness are the advantages of integrated die casting. If the integrated die casting process were to begin on a large scale, it would be a big change for the automotive manufacturing industry. Domestic Lijin Technology is the exclusive supplier of Tesla die casting machine, following 6,000 tons, and developed another 12,000 tons of die casting machine. In the future, the scope of body integrated die casting may be expanded to the position of the door and the front body. In addition to Tesla, at present, people like Volvo, Gaohe, Weilai, Xiaopeng, etc. are also entering the game of integrated die-casting bodies.
Then it is hoped that with the development of integrated die-casting technology, the price of the car will be further reduced; car companies will stand in the perspective of consumers to improve the reliability of the vehicle, rather than just treating the user as the wrongdoer of the new technology.
(Text/Shen Chen; Trial/Lingyun Sentient Beings)