Sixue Building, Classroom 305.

"Boss Mu, are you looking at the laser?"

The fat man glanced at the two books on Mu Yang's table and was a little curious. Xinghai Machinery already had two self-developed devices. He probably knew how long it had been. Could it be that he had started a new move again?

"Well, I plan to study laser welding."

"I don't know much about this. It seems very advanced. I have only heard that plasma welding or other welding methods of Xinghai Machinery cannot be replaced. What are its advantages?"

Fatty is a novice in welding. He has only been to Xinghai Machinery a few times and experienced plasma welding, gas shielded welding and TIG welding. He has learned a little bit and knows more than other students.

"The differences are huge. We can't say they are bad. If welding methods are subdivided, there are dozens of them, and the most suitable application fields of each are different."

Mu Yang continued,

"Simply put, it has much less welding deformation than welding methods such as secondary welding, argon arc welding, and submerged arc welding.

Therefore, it is more suitable for welding thin plates!”

For example, for thin plates of 0.5-2 mm (term: sheet metal), handheld laser welding is very suitable. The technical requirements for welders are very, very low. It only takes a few hours of training. If the hand feels good, you can weld the product. If the hand feels worse, you can weld the product.

, it can be welded after two or three days.

Moreover, the welded seams are very beautiful and even.

This is also an effect that other welding methods cannot achieve!

Mu Yang talked slowly like an old professor, and Fatty was like a sponge, absorbing knowledge. The more he listened, the more fresh he felt.

The classmates next to me also joined in the fun and came to listen. Mu Yang's lecture was easy to understand, but some knowledge points were still difficult to understand.

The fat man absorbed a lot of knowledge in a short period of time, and his head was a little swollen. He understood most of it better than the classmates next to him, but some were a little confused: "I still don't understand, why is the deformation of laser welding small?"

"Well, in layman's terms, the width of the weld is only 2-3 mm, which means that the energy per unit length heated to the base metal is much less than other welding methods, and the width of the weld is very uniform.

Understand it. If you still don’t understand, you can only read books about lasers.”

The fat man nodded. Mu Yang's words were relatively easy to understand and didn't go too deep.

Other students also praised: "Yangzi, you have done a thorough research."

"Yes, we are still learning the most basic knowledge, and Boss Mu has already done cross-border research."

Only when you have done thorough research can you easily spread the science to others.

Otherwise, what laypeople will hear is encyclopedia’s professional knowledge instead of in-depth and simple popular science knowledge.

admire!

They often see Mu Yang reading extracurricular books and know that he has already completed his freshman courses, and the teacher also exempted him from homework.

Being able to come to class is a great honor to the teacher, but Mu Yang said that staying in the classroom would create a better learning atmosphere, and a student should act like a student.

You see, their ideological consciousness is too high and they cannot learn.

If you have money and a company, you can go to Mao School!

"It's just superficial. The knowledge involved in this laser is too broad and deep. You can also learn about it during future conversations. The prospects of this industry are very good and the salary is high." Mu Yang suggested.

After chatting for a while, everyone was almost ready for class and returned to their seats.

Mu Yang continued to study laser welding.

He took up contact laser welding and robot laser welding from 2020 to 2022, but the research was not in-depth and mainly focused on applications.

Laser welding equipment involves a lot of optical knowledge. Mu Yang studied for a long time but still didn't understand it. So he reviewed high school physics and college physics, but his knowledge about light was still relatively shallow.

It doesn’t matter if you don’t understand now, it doesn’t matter if it’s difficult to learn, it’s cheating!

This is Mu Yang's favorite thing to do.

Find relevant subjects and directly learn from experience.

Let’s start with the simple types of lasers, YAG lasers, CO2 lasers... fiber lasers, etc.;

Then go deeper into the structure and principle of the laser: resonant cavity, semiconductor pump source...

Finally, we get to optical monochromaticity, coherence, and particle inversion principles...

A large amount of laser knowledge was inserted into his brain and fused.

After about ten minutes, Mu Yang figured out the two conditions for laser generation.

1 Pump source: In order to achieve particle reversal, atoms continue to jump without attenuation, providing a steady stream of photons.

2 Optical resonant cavity: In order to concentrate, amplify and propagate the beam along the axis.

Mu Yang did not intend to study the others in depth. Firstly, he lacked experience, and secondly, he wanted to research and produce transmissive lasers. It is estimated that a large number of fifth-level skills would be required, and even some subjects would need to reach the sixth-level skill level.

Anyway, he didn't have the ability to develop and manufacture lasers in the early stage.

If you can't research it, you can buy a laser and assemble it yourself.

There are many types of lasers, and Muyang plans to use fiber lasers, which will have the widest range of welding applications in the future.

You still have to buy foreign brand lasers.

This is very helpless!

The pricing power of my country's laser industry is still not independent and has been monopolized by foreign countries for a long time.

At present, domestic laser manufacturers include Chuangxin in Shenzhen City, established in 2004; Raycus in Wucheng, founded in 2007, and JPT.

These three companies are all fiber laser manufacturers that were established earlier. They currently have little strength. They are all in the initial stage. It took a few years to occupy a small amount of the domestic market share.

Even if it occupies a small amount of the market, it has broken the monopoly of foreign companies in the field of lasers and directly lowered the price of imported products, which is indispensable.

For the most part, the industry leader IPG (Xiong Guo), which is a foreigner, has occupied a large market share. This company was founded in 1991 and is a world-renowned developer and manufacturer of high-performance fiber laser and amplifier products.

There are also well-known foreign fiber laser brands such as T-MPF, T-Coherent, and NLIGHT.

Like a wolf and leopard, it seizes the domestic laser market and "plunders" a large amount of domestic wealth.

This is what Mu Yang doesn’t want to see!

The era of exchanging market for technology has passed.

my country's lasers used to basically rely on imports, which were expensive and had long supply cycles.

In the cutting-edge technology industry, Chinese people must have their own top brands, disrupt the monopoly of foreign brands, and even drive them out of the country.

The road is difficult, but someone has to walk it.

Of course, the price of fiber lasers is currently monopolized by foreigners. Until domestic lasers fail to make a big breakthrough, lasers will not be much cheaper.

Even if Muyang assembles it successfully, the price of the complete machine will be very high and it can only be sold to manufacturers that make high-end stainless steel products.

For domestic manufacturers, it doesn't matter if your products are good, but your equipment is too expensive, and my production costs will rise accordingly. I want to make money, and if there is no profit margin, who will buy your equipment.

so,

Muyang plans to weld plates of 0.8-3 mm, which is also the common thickness range of sheet metal products. Normally, the power of the welding laser is between 360-500W (watts). It is enough to choose a 1000W fiber laser for welding.

But in fact, people who don’t know how to do it will choose 2000W fiber laser for welding.

It’s not that it’s impossible, but the greater the power, the higher the price, and doubling it will also increase power consumption.

In 2020, the market price of domestic brand 1000W fiber laser for welding is 17,000 yuan, and the price of 2000W is as high as 40,000 yuan;

The price of foreign brands with the same power is about 1.5-2 times that of domestic brands.

Of course, it is cheaper to purchase in large quantities. It is estimated that it is only about 20% off the market price. The median value for foreign brand 2000W lasers is 55,000 yuan.

At that time, a handheld laser welder assembled using a foreigner's 2000W laser sold for about 140,000 yuan.

Gross profit margin = 14-5.5 - other configuration costs are about 0.5 = 80,000 yuan!

In 2009, Mu Yang checked the information and found that the market price of IPG's 1000-watt fiber laser for welding, the leader in the fiber laser industry, was about 65,000 yuan.

If you purchase in large quantities, you can probably buy it for 55,000 yuan.

The cost of other configurations is not high and can be done for a few thousand yuan.

The manufacturing cost of a handheld laser welder is about 60,000 yuan.

If Muyang succeeds, it will be the first company in China to produce handheld laser welding equipment.

No, it should be the world’s first handheld laser welding equipment!

Foreigners probably think that the market is not big, and it really doesn’t exist at the moment.

However, in China, sheet metal welding has a wide range of applications, and laser welding is very suitable.

One terminal sells for more than ten or two hundred thousand yuan, and the market is monopolized.

If it is too expensive to sell, those domestic business owners would rather use other welding methods instead, such as hiring people to cover the cost.

You can start selling it more expensively to wealthy bosses, and then lower the price after the sales volume is stuck to make profits based on volume.

Well, let's do it.

No matter how much or how little money he makes, what Mu Yang likes to do most is monopoly. It feels like just one word,

Cool!
To be continued...