Why can’t we just “cast” a car by die casting?

1. Why is the body production mostly based on stamping and welding? 2. Are there any other production methods for body parts other than stamping? 3, can not build an integrated body? 1. Why is the body production so stamping and welding? The importance of determining the production method is determined by the product’s performance requirements, quality requirements, production compliance and production costs. Nowadays, the typical body layout is composed of the appearance of the surrounding parts and the body frame. The outer shape of the enclosure is determined by the shape. The sturdy lines that everyone likes to hear are stamped out by the surrounding pieces. In order to meet the performance requirements of silence, NVH, etc., and to reduce the weight as much as possible, the body frame is mainly composed of a beam layout with a hollow closed interface. The outer envelope of the surface is a thin plate, and the beam layout is also composed of a thin plate. The most convenient and quickest way to make thin-plate parts is stamping, and the dimensional accuracy of the stamped parts is also very good. In the skills of connecting steel plates together, welding is the most mature and subject to the highest. And today’s stamping and welding production has achieved a high degree of active production, more than 90{79e4fc1217237f34a2b6b85aa45956718364b30a56d5d5602af9cce4e6b77030} of the events can be done by the dull. Generally speaking, today’s stamping + welding production methods can meet the quality requirements of vehicle performance requirements, dimensional accuracy, etc., and can also produce dozens of vehicles in an hour to fully meet the production requirements. It is expensive and natural has become the first choice. 2. In addition to stamping and welding, is there any other process for body manufacturing? It is true that a small number of parts have been cast on the higher body, and the casting skills of the ancestors can already cast large-sized thin-walled parts and used in mass production. The picture below shows the front wheel cover of the Cadillac ATS, which is produced by high-pressure die-casting. This kind of cast parts can be 30{79e4fc1217237f34a2b6b85aa45956718364b30a56d5d5602af9cce4e6b77030}-40{79e4fc1217237f34a2b6b85aa45956718364b30a56d5d5602af9cce4e6b77030} lighter than the stamping and tailoring parts of the same performance because of the thickness, the ribs and the shape of the ribs, and the number of parts is also eliminated. In addition to casting, a large number of composite materials have also been applied to the body manufacturing, some of which are injection molding production, which is similar to casting. For example, the water tank frame in the figure below is produced by injection molding. In addition to casting, a large number of composite materials have also been applied to the body manufacturing, some of which are injection molding production, which is similar to casting. For example, the water tank frame in the figure below is produced by injection molding. 3, can not manufacture an integrated body? 3, can not manufacture an integrated body? Take the current flagship product Aventador as an example. The body layout is a 147 kg single cockpit. Take the current flagship product Aventador as an example. The body layout is a 147 kg single cockpit. However, such a single compartment is also composed of more than a dozen parts. However, such a single compartment is also composed of more than a dozen parts. This is important because of the different materials and processing methods to be used for different regions based on performance requirements. Through such a single compartment, the vehicle weight can be lowered, and the rigidity and quiet performance can be improved. More and more vehicles are now adopting carbon fiber bodies, and this single cabin layout is also adopted. For example, Alfa Romeo, which has been compared with the rowing rate in TopGear, is important because it takes different materials and processing methods for different regions according to performance requirements. Through such a single compartment, the vehicle weight can be lowered, and the rigidity and quiet performance can be improved. More and more vehicles are now adopting carbon fiber bodies, and this single cabin layout is also adopted. For example, TopGear has played Alfa Romeo with the speed of rowing. Another legal red BMW i3 now has a legal red BMW i3 With the growth of skills, the products that adopt the single body are no longer the high-end toys that are out of reach. It may be time to promote to the mainstream market. As for the single-body repair problem, there is no need to worry too much. Like today’s metal body, there are many repairing skills when it is damaged. If you are too nervous, you can cut and change one piece, and you don’t have to worry about rust prevention. With the growth of skills, the products that adopt the single body are no longer the high-end toys that are out of reach. It may be time to promote to the mainstream market. As for the single-body repair problem, there is no need to worry too much. Like today’s metal body, there are many repairing skills when it is damaged. If you are too nervous, you can cut and change one piece, and you don’t have to worry about rust prevention.