Chapter 1275

Yes, it's technology!

Because China's take-off production of primary 6max middle wing body fusion technology used to sum up two words: stamping!

Of course, in the field of aviation manufacturing, stamping can be different from general stamping, no matter the material or process, or the difficulty is not at the same level.

Let's take the largest closed equipment on the production line for example. If balotov is right, it should be an integrated equipment integrating heat treatment and primary stamping.

Needless to say, the key to stamping is heat treatment. Instead of simple heating treatment, a new technology called warm forming is applied.

It is found that the ductility and tensile properties of metals will be doubled at a certain temperature between room temperature and crystal recrystallization, so as to improve the utilization rate of metal materials, reduce costs and improve efficiency.

For example, the ductility of ordinary aluminum alloy increases from 20% to 80% at 280 ℃.

Because of this, thermoforming technology has become an efficient metal sheet metal parts with high utilization rate, which is favored by almost all industries, such as aerospace, automobile manufacturing, shipbuilding, machinery manufacturing and so on.

Especially in aerospace, the metal materials used are either rich or expensive. If the utilization rate can be increased by 10%, the cost will be greatly saved, let alone increased by more than 50%.

The problem is whether the isothermal forming technology is good or not, and the principle is not difficult, but there is a problem that no one can avoid, that is, what is the best extension temperature for processing metal materials. If we can not determine this value, even with the warm forming equipment, we can not make the most efficient metal sheet metal extension parts. On the contrary, it will backfire, leading to the increase of scrap rate.

A few years ago, South Korea suffered a loss in this respect and felt that its level was OK. Scholars from Europe and the United States also purchased a special warm forming stamping equipment for aerospace.

As a result, it was found that if the equipment with excellent effect was tried out by European and American manufacturers, it would be like being acclimatized in South Korea, and could not produce qualified products at all. So South Korea filed a lawsuit against European and American manufacturers.

After the European and American manufacturers sent people to look around, the reply almost made South Korea collapse.

If you want to manufacture aluminum alloy, aluminum lithium alloy and even titanium alloy stamping parts, I'm sorry, a set of data at least costs 18 million US dollars.

Not to mention that all data upgrades are handled by personnel from European and American manufacturers, and no one is allowed to be present in South Korea. In addition, South Korean manufacturers have to pay an annual maintenance fee of US $5 million after the completion of the data upgrade. If there is any further upgrade, it needs to be recalculated.

In other words, the equipment belongs to South Korea, but the soul belongs to European and American manufacturers. South Korea is at best a tool maker. It costs money and gets tired. In the end, European and American manufacturers have to change their posture and patterns.

South Koreans are depressed and want to vomit blood, but they have nothing to do. They have to invest a huge amount of money to upgrade the equipment data. There is no way. Who let the European and American aviation access include some warm formed stamping parts into the safety standard? If you don't follow up, you won't even have the qualification to integrate into the industrial chain.

Therefore, even if they are treated as unjust bigwigs, they will be recognized.

South Korea is pretty good. The most important thing is that European and American manufacturers can still wield a butcher's knife.

Russia has no such good fortune. Even if the neck is washed clean and let the European and American manufacturers kill it, people are too lazy to cut it.

Yes, even if Russia decides to sell, European and American manufacturers will not sell similar equipment to Russia, let alone the valuable data behind such equipment.

In fact, the Soviet Union is not weak in the research of sheet metal forming technology and metal materials, otherwise it would not have made such brilliant achievements in the field of aerospace. However, the collapse of the Soviet Union disrupted the original scientific research plan and industrial division, leading to a sharp decline in this field in Russia.

Warm forming is a new topic in the field of sheet metal forming. Although the Soviet Union has been involved in it, it has not made due progress. The Soviet Union collapsed. In addition, after the disintegration of Russia, Russia's various economic twists and turns directly made itself lame. When it tried to catch up, it found that Russia is still that Russia, but the world is no longer that world.

The gap will be opened in an instant!

Then... And then the manufacturers in Europe and the United States collectively look at the awkward posture of the wriggling bear, shaking its body and begging for people to kneel and lick around, laughing like a farce.

The humiliated bear had no choice but to quietly return to his tree hole and lick his injured self-esteem.

However, this is not the key, the most fatal is the Soviet era proud of the production capacity and explosive force, because of the lack of thermoforming technology and become insignificant.After all, the efficiency of a large number of stamping parts can not be filled by the old Soviet style factories.

And this is just the pediatrics in many high technologies of the automatic sheet metal forming production line in China. What really turns the decadence into magic is the horizontal and vertical stretching machine; Multi point precise stretching; Complex surface stamping equipment.

It can be said that without this equipment, there is no way for the wing body integration to take shape, China's take-off will not be able to reduce its own manufacturing costs, and there will be no so-called manufacturing revolution.

Because this set of equipment is more difficult than warm forming, higher degree of automation, no mold forming technology.

The biggest advantage of this technology is that it can achieve one-time stamping for complex surface structure without subsequent processing and processing.

It can be said that it is an artifact to reduce the cost and improve the efficiency for some aviation parts that need metal materials, and the structure is not too complex, but require complex surfaces.

The reason for this is very simple. The reason why dieless forming is called dieless forming is that no special stamping die is needed.

In the field of sheet metal forming, the cost of die can account for 30% to 50% of the total manufacturing cost; Even the mold cost of some special shaped construction can reach 70% of the total cost.

However, dieless forming technology has directly removed the biggest cost source in sheet metal forming. From then on, the sheet metal can be extended and stamped as you want without mold.

This technology is only mastered by the United States and the United Kingdom in the world.

The reason is very simple, because the foundation of this technology is the flexible tooling system in the aerospace field. Without this technology as support, dieless forming is like water without a source and wood without roots, which will not work at all.

In fact, Russia has made great efforts on the technology of Dieless Forming for a long time, but the technology of flexible tooling system in Russia is not up to standard, so the dieless forming stamping equipment made by Russia is naturally full of holes.

As a result, the flatness of sheet metal parts is particularly poor, and the overall process is worrying.

Balotov knows this very well. That's why he is so surprised to see this automatic sheet metal forming line that he can't say a word. But once he comes back, he is as excited as a baby, so that he doesn't ask any other details at all. He goes straight to the theme: "Mr. Zhuang, I don't know what the price of this sheet metal forming line is?"

"It's not expensive!" Zhuang Jianye's answer is simple: "it's only 800 million dollars!"