Ding Wenjiang Ding Gong sat upright in front of a 19-inch CRT monitor, uncomfortable. He looked down at the keyboard and mouse in front of him, and then at the vertical chassis under the desk, and his heart was full of absurdity.

Equally ridiculous are the more than 20 students of Tianyang Metallurgical Institute in front of Ding Gong. They are all metallurgical majors, and they are sitting in the newly built electric classroom and carefully moving the mouse in their hands, but they don't know what to do?

The teachers and students were confused.

The electric classroom is newly built, and the CAD course is also newly opened.

Dozens of computers in the classroom were picked up from the 'garbage heap' only the day before yesterday. A lot of the chassis is in tatters, and it doesn't look like high-end goods worth tens of thousands of dollars at all.

In the nineties, the West had already used a lot of CAD software in the industrial field, and Zhou Qingfeng directly used piracy. Even the teaching materials were purchased and sent from HK on an ad hoc basis.

Tianyang Printing Factory ignored the copyright and made more than 100 sets of photocopies in two days and sent them to the college. The textbooks are not translated, so they have to be taught in English.

Ding Gong is the foundry engineer that Xiao Jinlang accidentally met on the train.

The domestic scientific research field has long been in a state of 'keeping a close eye on international advanced technology and striving to fill the domestic gap'.

Ding Gong is doing this, he is staring at the new technology of the foreign foundry industry, and is currently focusing on the application of computer CAD technology in the industrial field.

This old man in his 60s has worked in a state-owned enterprise in Wuhan all his life, and when he is about to retire, he will give his job to his children.

Now that it is good, state-owned enterprises still allow sons to inherit their father's business. After a few years, state-owned enterprises have closed down on a large scale, and it is impossible to inherit his father's business.

In the 90s, there was a word called 'going to the hole', just like the traffic artists who performed everywhere thirty years later. But there is no agent in the current 'cave', and they are all capable people running around privately.

Mr. Ding retired, and in the past two years, he has been 'going around', mainly helping some local small factories to solve the problems of casting and earn some labor fees.

Casting has been around for 3,000 years, and it is the oldest manufacturing process in human beings. Those exquisite bronzes in ancient times were basically cast.

Compared with machining, casting is cheaper, faster, and more abundant, but the accuracy is poorer.

The use of CAD technology in the field of mechanical engineering is a huge progress. For example, when designing the mold, the intuitive three-dimensional structure is given, and the drawing is quickly produced, which greatly saves the cost and time.

The West began to study CAD in the seventies. With CNC technology, this makes their industrial products more refined, good quality, low cost and high profit.

The 50CC displacement gasoline engine shell made by 'Holy Light Machinery' is also cast. However, the accuracy of the mold is poor, and it needs to be processed many times in machining.

But as long as there are more machining times, this cost will not be reduced to a certain extent. Especially now that CNC machine tools are not popular, it is more expensive to rely on labor.

When Ding Gong said on the phone that he was studying the application of CAD in the field of casting, Zhou Qingfeng was overjoyed. He immediately made a decision with a monthly salary of 1,000 and invited this baby old man to Tianyang.

Mr. Ding is quite satisfied with Tianyang, good food, good drink and good accommodation, much more comfortable than ordinary small factories.

He also ate the health care products distributed by the company, and his migraines and old stomach problems for many years have stopped attacking, and even his energy is much stronger, and his sleep quality has also been greatly improved.

Life is good, but is this job?

The technical strength of ordinary local small factories is poor, and Mr. Ding will not talk about CAD when he goes, mainly to help solve the mold problems of some ordinary castings.

But there is no shortage of ordinary molds under Zhou Qingfeng, and he is well aware of the potential of computer technology. As a result, the backward industrial system will be overthrown, and the cost of products will be greatly reduced.

Since the nineties, China's casting output has continued to exceed 10 million tons. Two thousand years later, it surpassed the United States to become the world's first.

But the light will cast some iron lumps, and it won't make a lot of money. After the domestic production is fighting, the problem of being big but not strong has always been unavoidable.

Mr. Ding engaged in CAD in his original unit, but the results were not high. The reason is very simple, the domestic casting technology is backward, the quality of employees is low, and there are a large number of vacancies in supporting equipment.

Even Ding Wenjiang has done several CAD public relations in order to write papers and complete tasks arranged by some ministries and commissions.

After that, everyone held a meeting, presented awards, wrote a few summary reports, and the results were shelved and finished. As for the actual production, it still uses backward old technology.

Unexpectedly, when he arrived in Tianyang, Zhou Qingfeng came for real. The president has to engage in large-scale computer-aided design and manufacturing, and also train a group of professionals.

Old man Ding has a big head, and he has never done this job.

But now that the money is taken and the food is eaten, I can only bite the bullet.

This is equivalent to having to do all the mechanical processes from scratch, and the original equipment and personnel cannot be used, which is very difficult.

Fortunately, Zhou Qingfeng is not a rice bucket leader who only shouts slogans but does not give enough funds, and he will not only approve 50,000 yuan of R&D expenses as if it is fatal, but also tells scientific researchers to save some money.

Zhou Qingfeng does not meddle in technology, but he understands what is the trend of technology. The dozens of 486s in this classroom alone made Old Man Ding feel indescribably excited and stunned.

It's so refreshing to have a lot of money!

Zhou Qingfeng will not send a group of junior high school Chinese workers to engage in research and development for Old Master Ding, and the people who come are all authentic college students. Although these students are inexperienced, they are very capable of learning!

CAD technology completely eliminates manual drafting. Its essence is the combination of computer and machine to design an accurate digital model, and then create accurate parts accordingly.

This puts forward higher requirements for production lines, production equipment, and production workers. Extensive management will not work at all, and large-scale investment in technology and personnel training will be required.

The point is that a lot of equipment can only be imported. Therefore, state-owned factories can only complete some political projects to fill the domestic gap, and there is no way to apply them in large quantities.

"Amazing, amazing!"

Touching the mouse in his hand, Old Man Ding laughed happily. He traveled abroad and saw factories in Japan and Germany.

Workers from abroad are dressed up and work in spacious and bright offices. The workers of the country are black and black like beggars.

Looking at the restless students in the classroom, the old man smiled and asked, "Why don't you seem to be happy?" Today's course is in line with the trend of the times. ”

A student asked with a bitter face: "Teacher Ding, if we learn this casting, will we be assigned to the factory as a worker in the future?" ”

Oh......, here the symptoms are.

The old man smiled: "If this kind of worker doesn't need to be tired and tired, he only needs to sit in a beautiful office and work on the computer, and he can get seven or eight hundred a month, can you do it?" ”

Hahaha...... a group of students immediately laughed.

Foundry workers are all high-temperature work, doing manual work, the working environment is harsh, but the requirements for academic qualifications are not high. Generally, the wages offered by factories for this kind of position cannot attract excellent employees at all.

Mr. Ding knew very well what the students thought, and he grabbed the photocopy of the textbook in his hand, "At present, a large number of domestic mechanical drawings rely on manual work, but foreign countries have begun to use computers.

I don't have much experience teaching you either. Now we can only rely on our own groping to see how European and American countries do it?

I know that the Institute has begun to replace manual drawing with computers, and the efficiency improvement is extremely obvious. It's a lifelong skill that you can learn and use.

You are luckier than me, because I am old. I only have experience from the past, and you will have the future

As long as the 'Holy Light' can continue to invest in this industry, the right to speak in this industry in China in the future is likely to be in the hands of a few of you.

Go for it, students. The future is promising! ”