If you want to imitate a kind of machinery, the first difficulty is to be inaccurate, especially the engine is a product with too high precision, many joint parts, bearings, crankshafts and other details require high precision, and the error of a few tenths of a millimeter is large, and some places can only be seen with a microscope, even if Liu Lang's super high IQ does not have microscope glasses.

Some people say that what to do with such finesse, and it's okay to be rough.

Ordinary machine tools may be rough and fine, it's a big deal to change a part, anyway, there is not much money, for example, the original AOD electric furnace, its fineness is still a certain gap with Germany, but at least it can be used, but the life is worse than the original production, but this gap is negligible for China.

However, the engine is not successful, in the state of high temperature, high pressure and high friction, a small error will cause huge wear, the life of the engine will drop rapidly, the engine is the heart of the car, and the overhaul of an engine is similar to a heart operation, which is basically scrapped.

Not only is the error measurement inaccurate, but also many structures, such as chamfering, curvature, and surface roughness, which are impossible to measure or extremely difficult.

At that time, some people also proposed to turn the mold, but the biggest problem of the mold is the tolerance and tolerance, any design will leave some margin, these seemingly unimportant things are actually extremely important, when the engine is running, many things will be deformed because of temperature and mechanical movement, then the margin is needed, to figure out the margin, can only be a large number of test runs in the later stage, and constantly overturn the steps above to correct.

In addition, even if you can obtain all the data through accurate measurement, you can't know the composition of the material, the materials of each part of the engine are completely different, the cylinder head, cylinder block, piston, crankshaft, the physical strength and performance requirements of each part are different, and the selection of materials is also different.

But it is not enough to have data and materials, how to process and what is the processing technology.

In addition to these, the most fundamental thing is that we don't have a better machine tool, which is the foundation, and the foundation is not good, let alone anything else.

So in the final analysis, there is a gap in all aspects, but the gap is very large, and if you don't get an overall improvement, you don't want to get the engine at all.

Of course, Liu Lang knows these reasons, and he also knows that it is impossible to understand all the technologies of the engine by himself, even if he understands all kinds of theoretical data, but it is useless without tools, but why did he still choose Professor Claire's engine major?

Quite simply, he wanted to get his hands on the most cutting-edge machine tools and equipment in the United States.

Huaxia University has now completely eaten the technology of the three machine tools in Germany, of course, it is the German third-rate level of machine tools, leading the level of China for almost ten years, through the efforts of Liu Lang, Xiong Huaizhi and everyone, one year to imitate it, the biggest harvest is that many students and teachers have gained valuable experience, laying the foundation for further research and development.

If Professor Xiong takes everyone to develop more advanced machine tools, perhaps the second generation of Western products, or maybe a generation and a half of this level, how much time will it take?

If we follow SMIC's model, that is, mobilize all departments across the country to engage in R&D at any cost, Professor Xiong thinks it will be possible in seven or eight years.

It took a huge amount of money to spend seven or eight years, and in the end it was only possible, who would dare to do it?

In fact, Professor Xiong himself thinks that seven or eight years may be less, more than ten years have a high probability, the European and American machine tool manufacturing system has been established after hundreds of years of time, China's industrial system was established after the liberation of new China, born a lot worse, plus nearly 30 years, large-scale standardization of the industrial system has gradually formed, China has missed this great opportunity, the gap between the two sides is afraid to have 50 years, which means that people do not move forward you have to spend 50 years to catch up, if people develop again, I am afraid that the gap will continue to grow。

There is such a huge gap, Liu Lang does not think that the country can have the technical conditions to manufacture engines in a short period of time, but this does not mean that he should learn engine technology, because engine technology is a system engineering, involving all mechanical engineering theories, materials, molds, design, processes and machine tools, etc., when these technical levels have reached the peak, to create a superior performance engine.

Liu Lang is learning these techniques, looking down from the highest place to get a glimpse of the whole picture, what he wants to do is to be at the top of the mountain, a glance at the mountains, not only in this mountain, the clouds do not know where.

Since Western countries have already explored a path toward developed industry, why doesn't China follow it? Not only in terms of technology, but more importantly, it is the integration of various industrial categories, and this is what Liu Lang wants to learn.

Professor Claire counts when he speaks, and from this day on, he took Liu Lang to join his work team.

Now Professor Claire has two projects to do, McDonnell Douglas improved engine technology project, Lockheed Corporation's new generation missile propulsion project, in which McDonnell Douglas improved engine technology is carried out in the test area of Stanford University, and the other project is carried out in New York, both projects are state secret projects, especially the latter, participants need the approval of the US government, Liu Lang is unable to participate, McDonnell Douglas project is less confidential, but Liu Lang cannot directly enter the core research and development room, McDonnell Douglas and Claire's work team signed an agreement that all relevant data cannot be leakedClaire's team also has McDonnell Douglas engineers, and if Liu Lang walks into the core R&D room, Claire will be in trouble.

Of course, Liu Lang won't go to the core R&D room, and he can't understand it when he goes, he only cares about the machining part.

There is its own casting workshop, machine shop, assembly workshop, panel workshop, painting workshop and design room, of course, compared with the workshop of those factories here is much smaller, the factory is mass production, the laboratory is only experimental, the two can not be compared in scale, but the sparrow is small and has all the organs.

There are some workshops that Liu Lang cannot enter, such as the assembly workshop, which is the key place for the final product to be formed, which involves a lot of confidential parts, and only the core personnel can enter and exit, at least Liu Lang is not qualified.

However, Liu Lang is not interested in these, I look at the farts after they are all finished products, and what he cares about most is the foundry workshop.

The main manufacturing here is the cylinder block and spindle, the raw materials are provided by other enterprises, since it is manufacturing, it is indispensable to machine tools, these Liu Lang can see it clearly.

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