In just a few days, Liu Lang got along with the staff in the laboratory, he has an innate advantage in interpersonal communication, first-class "mouth cannon" kung fu, plus the "legendary" on his body, no one will hate a well-behaved, cute, smart and sensible child.

"Mr. Thomas, you look in good spirits today, I believe that your paper has been praised by Professor Clare, and you will continue to work hard to get a faculty position at Stanford University this year!"

"Mr. Victor, you haven't shaved for two days, and you still have dark circles under your eyes, if you continue like this, Ms. Ruth will call Professor Claire in a fit of rage, and then scold him on the phone, if you don't want to be scolded by Professor Claire, then take care of your face.........!"

"Miss Mary, your leather shoes are beautiful, more striking than the runners on my feet......!"

The lab was full of cold machinery, and before Liu Lang arrived, there was very little pleasant communication between those employees, because Professor Claire didn't like that.

But Liu Lang doesn't pay attention to his set, every time he appears, he immediately laughs, everyone likes to talk to him, even the most dull people will be amused by Liu Lang's innocence and humor, Liu Lang suddenly became everyone's pistachio, and Professor Claire didn't say anything about Liu Lang's "vice", did he want to get angry with a child who was just seven years old?

Of course, the most popular Liu Lang can wander around the laboratory unscrupulously, of course, he will not go to the confidential place to make trouble for himself, his favorite thing to stay in is the foundry workshop, and those workers to discuss various CNC machine tools.

In fact, these people are not workers, at least not workers in the strict sense, they are all doctors, yes, most of them are high-achieving students from key universities.

Is a doctor the same as a worker? It must be different in other countries, and the general concept of a worker is those who work in the factory line, who are in the midst of roaring noise, whose eyes are full of smoky miasma, and who are of course workers in a vulgar and contemptuous tone.

When Liu Lang was working on chips in Shanghai, he once heard a joke among old workers: it is called "doing evil in the previous life" and engaging in industry in this life, the meaning is very obvious, referring to the tiring and dirty work, the salary is not much, and many front-line workers have not reached retirement age and their health is not good, as if it is God's punishment for their sins in their previous lives.

However, in the industrially developed countries such as the United States, Germany and the island countries, the concept of workers is by no means the same, they have higher salaries, they also enjoy a lot of rights in society, and even some so-called workers have very high academic qualifications, and there are many graduate students or even doctoral students.

Because the reason why these developed countries are called developed countries is that they always have a developed industrial system, and the developed industrial system not only relies on advanced science and technology, but also industrial workers that have been passed down from generation to generation.

The most typical example of you is that Bazel of Andrews in Germany was a graduate of Ruhr University, and after graduation, he worked in Andrews for more than 30 years, until he retired, and his level was greatly admired by Professor Xiong Huaizhi, and there was no problem in becoming a professor at the university.

This shows the great importance that Germans attach to industrial workers, and in fact many university professors often work on the front lines with their students, and it is more pleasant to call them workers than professors.

The idea that the industrial worker is a noble profession and a profession worthy of respect is deeply ingrained, and it is precisely in this way that their country has a strong industrial science and technology.

So here Liu Lang also regarded himself as a worker, still the youngest worker, and after being recognized by other workers, he also really integrated into the team.

Every time Liu Lang comes to the laboratory, he will keep asking all kinds of questions, focusing on the dozen or so workers in the foundry workshop, don't look at their usual work is just pressing the button, in fact, they are not ordinary people, among which five workers are still the designers of these CNC machine tools, and they have a clear grasp of the internal structure.

A month later, Liu Lang has basically mastered how to build a CNC machine.

First of all, the design of the machine tool, is to use theoretical knowledge to draw the machine tool on the drawings, which is the same as the architectural drawings, with the drawings, the construction workers can build up the floor according to the design, but the CNC machine tool requirements are much better than the building, the difficulty lies in the accuracy of the machine tool, which involves the casting of the mold.

Then there is the machine tool casting, a machine tool casting is the bone, is the key to bear the cutting torque force and dispersed shock force, is the basis of the stability of the machine tool, most of the machine tools in China are made of ordinary cast iron, even stainless steel is not popular, it looks like it can also be used, it is also very good, it has been used for more than 30 years, but in front of CNC machine tools, those are a bunch of scrap copper and rotten iron.

This is like the foundation of a building, if you build a three- or four-storey house, of course the foundation does not need to be so good, but you are a high-precision machine tool, without good castings, even if it is the best spindle screw, the accuracy will be lost after one year of operation.

This involves smelting technology, especially for casting plants and smelters.

From the mouths of those workers, Liu Lang learned that the bed of CNC machine tools is generally made of ductile iron and Meehanna cast iron, the former is less rigid and easy to control, and the latter is relatively difficult to control defects, of course, the cost is higher.

At the same time, in order to improve the overall rigidity, the internal structure of the bed will be more complex, and the requirements for the casting level will be high.

In addition, there is another detail that Liu Lang knows for the first time, because CNC machine tools have very high requirements for precision, the machine tool itself has vibration when it starts, for example, the surrounding ground will tremble slightly every time Professor Xiong's laboratory starts the machine tool, how to require precision in this environment?

CNC machine tools naturally do not allow this kind of thing to happen, the complex overall structure will be like a conductor to disperse the vibration to the maximum, and the machine tool also adopts the three-point support technology.

This technology refers to the support mode of the bed of the machine tool, the advantages of the three-point support are mainly easy to level and install, and in turn, the rigidity of the bed that can be supported by the three-point support must be good enough, so the material is required to be good, and the casting structure should also be reasonably designed.

Then there is machining, machining is of course very important, high-precision casting processing, in order to ensure high-precision machine tool assembly, which requires large-scale machining equipment, such as gantry bed and high-precision coordinate boring machine manufacturing, and then use guide rail grinding to grind out the accuracy, of course, there is also a high-precision machining process, this is the process category, you need experienced industrial workers to make, otherwise you will give the machine tool in vain.

There is also a control system, the system determines the key accuracy of the machine tool, is the brain of the CNC machine tool, if there is no VIE company, this link is enough for Liu Lang to hit the wall, but now VIE company obeys his words, he is also the second largest shareholder of VIE Software Technology Co., Ltd., this has become the easiest step, in addition Liu Lang learned that Wang Haijun went to the island country to study, what he learned is the control system, and then he came to develop it with VIE company.

The last is the assembly and adjustment, according to those workers, the assembly process is an assembly line, a model of a line, each station corresponds to an assembly process, with a slide rail platform to push to the next process, there is a very detailed assembly record in the middle, this step can be in accordance with the normal procedure, but the adjustment is a fine job, debugging accuracy is also the final key, to have a few high-level masters.

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