Chapter 390 The process of localization has accelerated
Although Liu Lang can rely on the powerful computing and analysis capabilities of his brain to figure out the parameters of some machine tool parts, it is not easy to manufacture them, but no matter how difficult it is, everyone has to do it.
Liu Lang's requirements are very high, that is, he should copy the parts of each machine tool for me, and solve the problems if they are found in the process. If the steel is not up to standard, let the professors of the School of Materials come up with a plan; the manufacturing capabilities of domestic machine tools are not good enough.
, Liu Lang and Xiong Huaizhi proposed a transformation plan.
In short, regardless of whether this machine tool can be completely copied in the end, the technical aspects must be thoroughly understood without any doubts.
If the manufacturing of stainless steel smelting furnaces and electric furnaces was completed under the leadership of Xiong Huaizhi, then Andrews' machine tool imitation work became Liu Lang's personal show. Just by analyzing the parameters of many parts, he could speed up the work.
Much ahead of schedule, even though the specific manufacturing was still completed by other teachers and students, there is no doubt that Liu Lang played a crucial role.
Everyone believes that perhaps within half a year, or at most a year, the most advanced industrial machine tools independently produced by the country will be born, and in this process, the first batch of high-quality industrial workers will also appear. Compared with machine tools, these
Talent is what Liu Lang values most.
While a group of teachers and students at Huaxia University were working in full swing in the laboratory, the manufacturing plants that purchased machine tools from Andrews Company were also making continuous progress. In May, the national People's Daily published a news that the fifth
The manufacturing plant took the lead in producing auto parts with an accuracy of 0.1 mm, reaching the world's advanced level, and the country's manufacturing level has been greatly improved.
The accuracy reaches 0.1 millimeter. This standard has barely met the requirements of some Volkswagen parts. It can be said that this marks a key step in the localization of Volkswagen.
Xiong Huaizhi deliberately read this report in front of everyone, but the people present only smiled slightly, not at all the emotions they had when the stainless steel smelting furnace was built.
"We just made car parts. What's there to brag about? If we were to do this, I'm afraid we would have already made most of the car parts!"
A graduate student curled his lips and said.
No one said that he was bragging. In fact, it was the same. In theory, German machine tools could produce most of the parts that Volkswagen supplied to China. The reason why domestic manufacturers took more than two months to
Parts are manufactured because the process is not good. This process refers to the manufacturing of the parts themselves, and more importantly, the manufacturing of the parts molds.
Auto parts are very different from other industrial parts. If you want to manufacture them, you must first design a new mold.
The simplest mold is easy to make. For example, if you want to cast a large rectangular or square iron block, then use an iron plate to make an iron box in advance. Pour the red-hot molten iron directly into it and cool it. Then it is completed. This iron box is a
Mold.
However, there are many more molds needed in the manufacturing of parts. Each mold must assist the manufacturer's process to complete the work, so manufacturing molds is also a very important part of industrial manufacturing, even as much as the machine tool itself.
There are too many basic processes, including stretch bending, reverse extrusion, cold extrusion, cold heading, embossing, blanking, bending, forming, deep drawing, bulging, boring, flanging, etc.
For example, to make an ordinary tee fitting, the commonly used mold is an arc-shaped steel mold. At the same time, a circular opening is cut in the middle of the arc, and a red-hot steel pipe is pressed into the mold with a high-pressure machine.
A piece of red-hot steel pipe will emerge from the circular opening, and then cut neatly at the emerging section, and the steel pipe will become a tee.
Tee pipe fitting molds are just the simplest type. Many parts have strange shapes, especially car parts. There are not many parts with regular shapes. Most of them are parts with strange shapes and complex structures.
, making molds for parts of this shape is definitely a task that tests the imagination of those designers.
After so many years of development, Volkswagen has already had complete sets of molds. These molds are all under the box and will never be easily shown to others. Therefore, despite the fact that they have handed over the drawing parameters of the parts to China, the molds are not
Take out a set.
Without molds, the country's designers could only design their own. Apparently the Fifth Manufacturing Plant of Liaobei Province took the lead in making molds, which is a gratifying thing.
But in the eyes of the teachers and students of Hua Xia University, is this worth celebrating? Look at the stack of drawings on the table not far away. They are all mold designs. Of course, this is not a mold for automobile parts, but a mold for machine tool parts.
.
These mold drawings were drawn entirely by Liu Lang alone. Except for simple parts such as the machine tool panel, all the slightly complicated ones were designed, and every one of them was flawless.
There's no way around it. Designing a mold tests one's "brain", which is actually one's imagination. Needless to say, Liu Lang's imagination? It's the most complex component of this machine tool. Liu Lang looked at it
After a few glances, the manufacturing mold was designed. This mold was also extremely complicated, so much so that many students could not understand it after drawing the drawings. It was only after Xiong Huaizhi's detailed explanation that he understood it.
It took Northern Liaoning Province a month or two to produce the molds, but here, molds are nothing to them and are the "least valuable" process.
In addition, the teachers and students of Huaxia University now have a "superior" vision: we are manufacturing machine tools to produce parts, and the rest of you are just using machine tools to manufacture. Are the realms of both parties the same? They are not on the same level at all!
Yes, using machinery and manufacturing machinery are two different things. Anyone can use it, but manufacturing is very difficult. What Huaxia University is doing now is a major event related to the future of national industry. Everyone involved has a strong sense of responsibility in their hearts. At the same time,
Proud to be personally involved.
Liu Lang is very happy. In just the past two months, Liaobei No. 5 Manufacturing Plant has successfully produced auto parts that meet international standards. This is a breakthrough. The mold may seem complicated, but many parts are similar.
, you can grasp some rules after successfully designing the first mold. I believe that molds for similar parts will be manufactured faster. By then, the process of localization of automobiles will be greatly accelerated. In the previous life, 80% of the domestic production was completed only in 1992.
I believe that the goal of globalization will be greatly advanced in this lifetime, and may be achieved by the late 1980s.